DJI Agras T50 OEM Back Cover

Back Cover | Airframe Structural Panel | Composite Body Shell Component | Weather and Chemical Barrier | Field-Ready OEM Replacement Component

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🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras reseller supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.

FREE & FAST Shipping is included for all U.S. customers.

We understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.

Airframe panels are the parts nobody thinks about until one splits. The back cover is not a component anybody buys with enthusiasm — it is bought because a panel cracked, a bay took water, or an aircraft came back from a hard landing and somebody looked properly. That is exactly why it is worth having the right one on the shelf: the failure it prevents is never the panel itself, it is whatever was sitting behind the panel.

We ship the Back Cover fast to the U.S.A.

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✅ DJI Agras T50 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking

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📦 Package Includes

• 1 × Original Back Cover
• OEM protective packaging

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🔧 Component Overview

The Back Cover closes the aft end of the T50 airframe. It sits directly in the rotor downwash and in the path of anything the spray system throws backwards, which makes it one of the most chemically loaded panels on the aircraft. Behind it sit aft components and wiring that stay reliable only for as long as they stay dry.

The Back Cover supports:

• Correct fitment on the aircraft
• Restored factory function
• Reliable day-to-day operation
• Reduced unplanned downtime
• Simple direct-fit installation
• Fleet parts standardization
• Field-serviceable maintenance
• Predictable service intervals
• Full compatibility with the DJI Agras system
• Increased aircraft readiness

Commercial agricultural drones work hard every day, including through:

• Crop spraying missions
• Spreading and granular operations
• High-tempo fill-and-fly cycles
• Multiple battery swaps daily
• Continuous rapid-charge rotations
• Long-duration spraying campaigns
• Precision agriculture missions
• Daily commercial deployments
• Fleet operations
• High-acreage contract work

Throughout these operations, this is routinely exposed to:

• Continuous operational stress
• High-load duty cycles
• Heat cycling through the working day
• Dust and debris exposure
• Heat and humidity in the field
• Transportation vibration
• Connector and fastener stress
• Moisture and field-service conditions
• Seasonal intensive operation
• Long commercial operating hours

The Back Cover helps maintain:

• A sealed, weatherproof equipment bay
• Correct airframe geometry and panel fit
• Protection for the wiring and boards behind it
• Structural integrity at the mounting points
• Aerodynamic surface continuity
• Resistance to chemical and UV exposure
• A professional appearance on customer sites
• Full aircraft airworthiness after repair

Agricultural chemistry is unkind to plastics. Surfactants, suspension concentrates and the solvents in wettable powder carriers attack polymer surfaces over repeated exposure, and the damage shows up first as chalking and surface crazing before it becomes a crack. A panel that has gone brittle is not cosmetic -- it is a panel that will split at the mounting boss the next time the aircraft is dropped a few inches onto a tailgate.

Fitting and service context.

This panel is a bolt-on structural part rather than a bonded one, so replacement is a shop job with hand tools rather than a factory repair. Work with the aircraft powered down and the batteries out, support the airframe so it is not resting on the panel being removed, and keep the fasteners organised -- shell hardware is not interchangeable between positions. Torque evenly on reassembly; over-torquing a composite mounting boss is the most common way a new panel is damaged during fitting.

Position check before you order. The back cover is the removable closing panel on the aft face of the airframe, fitted behind the central bay and landing against the aft body shell around its whole perimeter. It is a cover, not a body section: it is meant to come off. A large molding that other panels fasten into and that wraps the entire rear of the aircraft is the post-body shell, a separate line item; the back cover is the smaller panel closing the opening in it.

This panel comes off more often than almost anything else on the aircraft. Every access job into the aft goes through it, and each removal is another cycle on the same threads, the same landing face and the same fastener bosses, and it is cycles that wear a cover out long before the composite itself is finished. A back cover that has been off a dozen times for harness work and now needs a shove to sit down is telling you the fit has gone, not the fasteners.

The bench test settles the argument in about a minute and costs nothing. Take the old cover off and lay it on something genuinely flat, a table saw bed, a granite offcut, or a sheet of glass, sealing face down, and press each corner in turn. If it rocks on the bench, the cover itself has taken a set and it is the part to replace. If it sits dead flat on the bench but rocks or stands proud when it is offered up to the aircraft, the cover is innocent and the landing it seats against has moved, been chipped, or been pushed in. Those are two different orders and two very different labour bills.

To find exactly where a cover is failing to seal, use a witness line instead of waiting for the next rain. Wipe the sealing face on the aircraft clean and dry, run a thin continuous line of chalk, a marker, or engineer's blue all the way round it, then fit the cover, tighten it normally, and take it straight off again. Read the transfer on the cover. A continuous witness line means contact the whole way round. Any stretch with no transfer is where the water is getting in, and its position tells you whether you are chasing a warped panel, a broken lug, or a damaged landing.

A light in a dark shop finds gaps that daylight hides. Fit the cover, put a bright work light inside the bay through another access point, kill the shop lights, and look along the whole perimeter from outside. Light coming through is a direct water path. Do it the other way round if it is easier: light outside, head inside the bay. Photograph what you find with something in frame for reference, because a gap that is obvious in the dark is very hard to find again with the lights on and the covers back together.

Rule the fasteners out before you condemn the panel. Back every screw out, look at each washer for coining or dishing, look at each thread for damage, and check that no screw is bottoming in its hole before it has clamped anything. A screw one size longer than the rest, left behind by an earlier repair, will feel perfectly tight while clamping nothing at all, and the cover above it will never pull down. Then refit with known good hardware and repeat the witness line. If the transfer is now continuous, you have found a hardware fault rather than a panel fault and saved yourself a part.

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⚙️ Functional Purpose

The Back Cover is designed to restore and maintain correct function on the DJI Agras T50.

The part helps:

• Restore a sealed airframe after damage
• Replace a cracked or chemically degraded panel
• Close a water ingress path into the electronics bay
• Return correct fit against adjoining panels
• Recover mounting points that have pulled through
• Complete an airframe rebuild after an incident
• Refresh a high-hour aircraft before resale
• Standardise panel condition across a fleet
• Keep a spare structural panel on the shelf
• Avoid grounding an aircraft over a cosmetic-looking crack

Going without may contribute to:

• Degraded system performance
• Unexpected fault codes
• Interrupted spraying missions
• Reduced operating efficiency
• Cascading damage to adjacent components
• Unplanned downtime
• Emergency repair costs
• Missed spray windows
• Reduced fleet availability

The seal on a cover is made at its perimeter, so the perimeter is the part that matters. A back cover works by pulling flat against its landing all the way round, with fastener load shared and the sealing face compressed evenly. Once the panel takes a set, warps from heat, or cracks at one boss, the perimeter stops following the shell and water is no longer stopped at the joint, it tracks along it. That is why an aft bay can be wet behind a cover with no visible crack, and why bolting a distorted cover down harder makes the leak worse rather than better.

Removal in the right order keeps a serviceable cover serviceable. Power down and pull the batteries first. Loosen the fasteners in a criss-cross pattern rather than working round the perimeter, so the panel comes off its seal evenly instead of being peeled from one end. Count the fasteners and washers out loud and put them somewhere they cannot roll. Break the seal by pulling straight rather than levering at a corner; a screwdriver blade under an edge leaves a nick, and a nicked edge on a sealing lip is a permanent leak path on an otherwise good panel.

Note what stays behind and what comes with it. If a foam seal or gasket is fitted, look at whether it stays on the cover or on the aircraft, photograph it, and do not peel it off to look at the back of it if it is intact. Note the orientation of the panel before it is clear of the aircraft, because a near symmetric cover will physically fit rotated and you will only find out when the fastener pattern is one hole out. Set the removed cover down face up on cardboard, never sealing face down on a concrete floor, where grit embeds itself in the lip and gets carried straight back to the joint.

If a screw drops into the bay, stop and get it out before anything else happens. A loose fastener rattling around in a compartment full of wiring and connectors, in the vibration field of a flying aircraft, is a fault waiting for a bad moment. A telescoping magnet or a length of tape on a rod will usually reach it; if it will not, keep opening panels until it does. Never close the aircraft up on the theory that it will turn up later. Count the fasteners back in at the end against the count you made at the start.

Refit is done in the reverse spirit: settle first, clamp second. Clean both sealing faces of grit and dried mix, offer the panel up with no fasteners in it, and confirm it settles onto its landing under nothing but hand pressure. Start every fastener by hand, turning each one backwards until you feel the thread drop in before you turn it forward. Then tighten in a criss-cross pattern in two light passes before a final pass, rather than running one screw fully down and then moving to the next. Walking a small cover down one fastener at a time is the single most common way an operator builds a warp into a brand new panel.

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⚠️ Common Replacement Indicators

Replacement may be recommended when operators observe:

• Chemical staining or softening of the outer surface
• Cracks at mounting bosses
• Water found in the aft bay after wash-down
• Panel distorted by heat or sustained UV
• Loss of seal contact along an edge
• Impact damage from transport or loading
• Surface chalking and brittleness
• Fastener holes worn oversize
• Aft-bay electronics fault traced to moisture
• Airframe refurbishment

Commercial spray aircraft do not live indoors. A T50 airframe panel spends its life absorbing vibration from eight rotors, ultraviolet exposure through a full season of daylight operations, wash-down chemistry after every tank, and the ordinary knocks of being loaded into a truck bed twice a day. Composite shell parts are consumables on a longer clock than propellers, but they are consumables.

Fastener bosses or mounting lugs that are cracked, elongated, or broken clean off. A small cover carries high local load at very few points, so one broken lug leaves the panel unable to pull flat anywhere near it.

A cover that has to be forced or levered into place, or that rocks on its landing while the fasteners are still out. Either means the panel has taken a set and no longer follows the shell.

One corner of the bay coming up wet while the rest stays dry. That is not a general sealing problem, it is a local one, and it points at the lug, boss, or fastener nearest the wet corner rather than at the panel as a whole. Do the witness line test and read where the transfer stops.

Screws that get harder to start each time the cover comes off. Threads are being damaged a little on every cycle, and on a panel that is removed as often as this one that adds up quickly. Find out which half holds the threads before deciding what to buy, because the answer changes the job completely.

The cover bowing visibly outward between fasteners, most often across the middle of a span. The panel has taken a set, or it is being over-compressed at the fastener points and has nowhere to go in between. Either way the sealing face is no longer following its landing, and tightening further makes the bow worse.

A buzz or a flutter note from the aft of the aircraft in the hover that changes with throttle. An unclamped section of a light panel will resonate in downwash, and it is usually the same section that shows no transfer on a witness line test. The noise is the panel telling you where it has stopped touching.

A clean line of dust or dried residue on the inside face of the cover along one stretch of the perimeter. Air and water are passing that section and leaving their cargo behind. It is one of the most reliable pointers on the panel, and it is only visible in the moments after the cover comes off.

Crazing and chalking concentrated along the bottom edge rather than spread over the panel. Residue pools and dries at the low edge and gets a longer contact time than anything higher up. It marks a panel that has been washed carelessly and one whose lower lip will be the first part to go brittle and chip.

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📐 Specifications

Component Type: Airframe body shell / structural cover panel

Compatibility:

• DJI Agras T50

Package Quantity: 1 Panel

Installation Area: Rear of the airframe, aft of the central bay

Function: Rear weather barrier and protection for aft-mounted components

Construction: Original DJI moulded composite airframe panel

Mounting Type: Direct-fit OEM replacement component

Application: Agricultural drone airframe repair and refurbishment

Condition: Brand new

Confirming fitment before you order. Fitment on this listing is stated as DJI Agras T50. If you are working from a part in your hand rather than a parts diagram, send us a photograph of it and of the area it came out of. Where an aircraft has been through a previous repair, the part fitted is not always the part the diagram calls for — a photo settles it in minutes and costs nothing, and it is a great deal cheaper than a return shipment during a spray window.

Panel Role: Removable aft closure and weather barrier. It protects what is behind it rather than carrying structure, and it is designed to be taken off for service access.

Sits Against: The aft body shell around its perimeter, with the rear underside panels below it. It should settle onto its landing under hand pressure before any fastener is started.

Behind This Panel: Aft-mounted components and the wiring serving the rear of the aircraft.

Published Dimensions: Not published here. Cover size and weight are not figures we are willing to guess at; identify this panel by material number and by the opening it closes.

Hardware and seals supplied: The package contents on this listing are the panel and its protective packaging. Fasteners, washers, foam seals and grommets are not listed, so plan on transferring your existing hardware. This is a good moment to renew a washer that has coined itself into the panel, a foam seal that stays compressed after removal, or a screw whose head is starting to round, since all three are cheap and all three will otherwise be the reason the new panel does not seal.

Telling it apart on the bench: Compare inner faces rather than outer shapes. This panel has a continuous sealing lip round its whole perimeter, its own through-holes, and a comparatively plain back with no bosses for other parts to fasten into. The rear underside panels are flatter, sit below rather than behind, and carry different edge features. A moulding that other panels bolt into is the aft body shell. Match the fastener pattern to the aperture rather than matching the silhouette to a photograph.

Tooling and technique: Hand tools and a driver with a clutch, plus a plastic trim tool, a paint pen, chalk or marker for a witness line, a magnet for retrieving dropped fasteners, and a camera. No impact driver. Torque figures for these fasteners are not published in this listing; use the values in DJI's maintenance documentation for the T50, and apply them in a criss-cross pattern over more than one pass rather than one fastener at a time.

Keeping one on the shelf: This is the panel most worth stocking of any on the aft of the aircraft, because it is the one that comes off for every other job and therefore the one most often damaged by something that had nothing to do with it. A lug broken during a harness repair on a Friday afternoon should not cost a spray day. It is also the panel whose fit degrades gradually rather than suddenly, which means a spare on the shelf lets you compare a suspect panel against a known good one.

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🚜 Necessary For

This is ideal for:

• DJI Agras T50 operators
• Farmers operating spray drones
• Commercial spraying contractors
• Agricultural aviation companies
• Fleet maintenance managers
• Agricultural drone technicians
• Drone repair facilities
• DJI Agras service providers
• Commercial drone fleets
• Precision agriculture businesses
• Crash and damage rebuild projects
• Preventative maintenance programs
• Airframe refurbishment projects

Especially valuable during:

• Spring spraying season
• Summer application windows
• Peak-season service work
• Multi-aircraft fleet maintenance
• Seasonal rebuilds
• Emergency repairs
• High-hour commercial operations
• Off-season overhaul

Order the back cover specifically when the aft bay is coming up damp, when the panel will not sit down properly, or when a lug has broken. It is also the panel to buy after a tip-over or rearward contact: the aft face is the first thing to meet a fence post, a trailer wall, or the ground when an aircraft goes over backwards.

Closing out a damp bay for good after the easy fixes have failed. If the seal has been cleaned, the fasteners renewed, and the panel refitted properly and the bay is still coming up wet, this is the point at which the panel gets replaced rather than adjusted again. Do the bench flatness check first so you know whether you are buying the cover or the shell behind it, order any seals and hardware at the same time, and finish with a staged hose test and a light check before the aircraft goes back on a paid job.

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💡 Why This Component Matters

The aft panel lives in downwash and drift and takes more chemical load than most operators expect. It is a cheap barrier protecting components that are not cheap.

The Back Cover helps maintain:

• A sealed, weatherproof equipment bay
• Correct airframe geometry and panel fit
• Protection for the wiring and boards behind it
• Structural integrity at the mounting points
• Aerodynamic surface continuity
• Resistance to chemical and UV exposure
• A professional appearance on customer sites
• Full aircraft airworthiness after repair

Without it, operators risk:

• Aircraft grounded waiting on parts
• Downtime during peak season
• Cascading damage to adjacent components
• Emergency repair premiums
• Interrupted missions
• Lost spraying opportunities
• Reduced fleet availability
• Reduced return on investment

Airframe panels are the cheapest structural parts on the aircraft and the most expensive to ignore. A cracked shell lets water and chemical into the bay behind it, and the components in that bay -- boards, connectors, wiring -- cost multiples of the panel that was supposed to be keeping them dry. Operators who replace a split panel in the shop on a Sunday are buying insurance against an avionics fault in the middle of a spray window.

For practical, hardworking operators, the value is simple:

Protect the body. Protect the aircraft. Protect the mission. Protect the season.

Cover or shell is the decision here, and it is settled by looking at what the cover lands on. If the damage is in the cover and the shell face behind it is straight and unbroken, the cover is the whole repair and a cheap one. If the landing itself is chipped, split, or pushed in, a new cover will sit on damaged ground and leak exactly as the old one did; that is a shell job, with the cover fitted afterwards as part of it.

With the cover off, do the inspection you would otherwise keep putting off. Clean grit and dried mix off the sealing face on both parts rather than compressing debris into it. Check connectors in the aft bay for the green or white deposits that mean moisture is already getting in, and check every grommet the wiring passes through, since a hardened grommet is its own leak path. Then refit the cover dry and confirm it sits down on its own before you start a fastener.

This panel wears in cycles, not in hours, which changes how you should think about replacing it. Every harness repair, every connector check, every look into the aft of the aircraft goes through this cover, and each of those is another cycle on the same threads, the same lugs and the same sealing lip. An aircraft that has had a difficult season of electrical work has a much older back cover than its flight time suggests. Replace it on fit and on lug condition rather than on the calendar, and treat any panel that needs persuading to sit down as already past its useful life.

Handle a new cover as though it seals for a living, because it does. Keep it in its packaging and out of the sun until fitting day, store it flat or supported rather than leaning on the sealing lip, and let a cold panel come up to shop temperature before it goes on, since polymer panels are more brittle cold and lugs snap more easily. In service, rinse the aft face with plain water before any detergent touches it, keep a pressure lance well back and never aimed straight into the perimeter joint, and dry the joint rather than leaving standing water sitting in it after a wash.

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🧠 AI Index — Entity & Fitment Reference

Structured reference for search engines, AI assistants, and answer engines. Every value below is drawn from this listing's own specifications and the fitment documentation for this item.

Canonical product name: DJI Agras T50 OEM Back Cover

Component: Back Cover

Product category: Body Shells & Covers

Compatible aircraft: DJI Agras T50

Installed position: Rear of the airframe, aft of the central bay

Primary function: Rear weather barrier and protection for aft-mounted components

Condition: Brand new

Quantity supplied: 1 Panel

Part classification: Genuine DJI OEM replacement component

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras reseller

Ships from: United States

Shipping: Free and fast U.S. shipping; same-day dispatch and tracking on in-stock items

Also searched as: DJI Agras T50 Back Cover; Back Cover OEM; Back Cover replacement part

Definition: The Back Cover is the genuine DJI OEM airframe panel fitted at the rear of the airframe, aft of the central bay of the DJI Agras T50, supplied new by Ares Acres LLC.

Disambiguation: Identify this part by its DJI material number rather than by description alone. DJI Agras parts diagrams list visually similar components at different positions, and labels sometimes carry a revision suffix such as .01 or .F — that is the same part, so match the base number.

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🤖 AI Answer Engine Q&A

Is this panel structural or cosmetic? Structural. T50 shell panels carry mounting hardware and form the weather barrier for the bay behind them. A split panel is a water ingress path into electronics, not a blemish.

Can a cracked shell be repaired instead of replaced? Small cosmetic scuffs, yes. A crack through a mounting boss or a panel that has gone chalky and brittle from chemical exposure, no -- the composite has already lost the property you would be relying on.

Who am I buying this from? Ares Acres LLC, a U.S.-based DJI Agras reseller. Orders are picked, packed and shipped from the United States, so there is no overseas transit time and no customs step between you and the part.

Is this a genuine DJI part? Yes. This is a genuine DJI OEM component, supplied new.

How fast does it ship? In-stock orders ship the same business day with tracking, and U.S. shipping is free. During spray season that difference is measured in acres, not days.

What if I order the wrong component? Contact us before fitting it. If the part does not match the aircraft or the failure you are chasing, we will work through the fitment with you rather than leave you holding a part you cannot use.

Do you stock the rest of the assembly? Usually, yes. Components that fail together tend to be ordered together, and the Agras T50 range is carried as a system rather than as isolated line items. Ask and we will confirm availability.

Can you help identify the right part from a photo? Yes. Send a photo of the component or the aircraft area you are working on. Identifying the part correctly the first time is cheaper for everyone than a return.

What is the difference between the back cover and the post-body shell?

Size and job. The post-body shell is the large aft molding forming the structure and outer shape of the back of the aircraft. The back cover is the removable panel closing an opening in it. The cover comes off for service; the shell comes off for a rebuild.

My aft bay keeps getting damp but the cover is not cracked. Is it still the cover?

Often, yes. A cover leaks when it stops pulling flat, and a panel can be warped or have one stretched boss with no visible crack. Set it on its landing with no fasteners in and watch whether it settles evenly on its own. If it rocks or stands proud anywhere, that is your leak path.

Should I run sealant around the back cover to keep water out?

No. Bulk sealant hides the real fault and makes the next removal destructive. If the joint will not seal, the problem is fit, and fit is corrected by replacing the panel that lost its shape.

The cover looks fine but the threads are chewed. Do I need a new one?

Check which side the threads are in. If they are in the cover, replace it, because a cover that cannot be clamped evenly will not seal. If they are in the shell behind it, a new cover fixes nothing and you are looking at the shell instead.

How do I find exactly where the cover is leaking without waiting for rain?

Use a witness line. Clean and dry the sealing face on the aircraft, run a thin continuous line of chalk or marker all the way round it, fit the cover and tighten it normally, then take it straight back off and read the transfer on the panel. A continuous line means contact the whole way round. Any stretch with no transfer is the leak path, and where it sits tells you whether to suspect a warped panel, a broken lug, or a damaged landing.

How do I know whether the cover is warped or the shell behind it has moved?

Put the cover on something genuinely flat, sealing face down, and press each corner. Rocking on a flat bench means the cover has taken a set and the cover is what you buy. Sitting flat on the bench but rocking on the aircraft means the landing has moved or been damaged, and a new cover will sit on bad ground and leak exactly the way the old one did. It is a one minute check that decides which part you order.

What order should the fasteners be tightened in?

Criss-cross, in more than one pass, the same way you would do a wheel or a flange. Start every fastener by hand, bring them all up lightly, then bring them all up again, then do a final pass. Running one screw fully down and moving on to the next walks the panel onto its landing crooked and builds a warp into a brand new part. Use the torque values in DJI's maintenance documentation rather than feel, and never use an impact driver on these fasteners.

One fastener hole in the cover is stripped. Can I go up a size or use a longer screw?

No, and both cures do more harm than the fault. A larger screw splits the material around the hole and a longer one bottoms out and either cracks the boss or clamps nothing at all while feeling perfectly tight. A cover that cannot be clamped evenly at every point cannot pull flat, and a panel that cannot pull flat cannot seal. Replace the cover, and while it is off check whether the mating threads on the aircraft side survived the same event.

I dropped a screw inside the aft bay. Does it really matter?

Yes. A loose fastener in a bay full of wiring and connectors, in the vibration field of a flying aircraft, will eventually find somewhere it should not be. Get it out with a telescoping magnet or tape on a rod, and keep opening panels until you can reach it rather than closing up and hoping. Count fasteners out at the start of the job and count them back in at the end, which turns this from a search into something you notice immediately.

Is it worth keeping a spare back cover on the shelf?

For most operators, yes, and more than any other aft panel. This is the cover that comes off for every other job, so it is the one most likely to be damaged by work that had nothing to do with it, and a lug broken during a harness repair should not cost a spray day. A spare also gives you a known good panel to compare a suspect one against, which is the quickest way to settle whether a marginal fit is really a fit problem.