# JASC 3231: Landing Gear Door Retract Section

- Type: JASC system/component code (FAA)
- ATA chapter: 32 Landing Gear
- Title in the code table: LANDING GEAR DOOR RETRACT SECTION
- Service difficulty reports: 2,248
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=34
- Page: https://openairdocs.org/jasc/3231

## What it covers

The nose and main landing gear door actuating system parts other than the actuator. Excludes door structure and hinges, which are to be filed in JASC code 5280. Typical parts are bellcrank, rod, sequence valve, latch, lines, hoses, etc.

## Service difficulty reports (2,248, newest 50)

- [SDR UIEA2026090200846](https://openairdocs.org/sdr/UIEA2026090200846), Aug 31, 2026: Boeing 74747UF. ROD. BROKEN. GEAR DOOR & GEAR MONITOR STATUS MESSAGE. LT WING LG DOOR FOUND OPEN. LINKAGE ROD FOUND BROKEN, 2 RODS FOUND BENT ON FORW (N477MC)
- [SDR UIEA2026052900368](https://openairdocs.org/sdr/UIEA2026052900368), May 29, 2026: Boeing 74745E. PSEU. FAULTED. GEAR DOOR ADVISORY MSG AFTER TAKE OFF. GEAR DOOR & GEAR MONITOR STATUS MESSAGES. FOUND FAULTS J6 32795, 32717, 326675 &  (N472MC)
- [SDR UIEA2026052300346](https://openairdocs.org/sdr/UIEA2026052300346), May 23, 2026: Boeing 74747UF. ACTUATOR. FAULTED. NOSE "GEAR DOOR" EICAS MSG AFTER GEAR RETRACTION. RAN QRH, NO HELP. DURING INSPECTION, FOUND NLG DOOR ACTUATOR DAMAGED.  (N475MC)
- [SDR FDEA202605050561](https://openairdocs.org/sdr/FDEA202605050561), May 5, 2026: Boeing 75728A. MODULE. FAULTED. AFTER TAKEOFF, GEAR DISAGREE AND GEAR DOORS EICAS MESSAGES APPEARED ACCOMPANIED BY AN AUDIBLE AND TACTILE INDICATION THA (N970FD)
- [SDR DXTA2026050507892](https://openairdocs.org/sdr/DXTA2026050507892), May 2, 2026: Bombdr BD7001A12. SELECTOR VALVE. INOPERATIVE. BOTH MAIN GEAR DOOR AMBER CAS MESSAGES ILLUMINATED AFTER GEAR SELECTED DOWN. REMOVED LANDING GEAR DOOR SELECTOR VALVE, I (N189QS)
- [SDR ABXA20260323125](https://openairdocs.org/sdr/ABXA20260323125), Mar 23, 2026: Boeing 767281. DOOR. MALFUNCTIONED. CLIMBED OUT AT 220 KNOTS UNTIL 10000 THEN ACCELERATED TO 260 KNOTS FELT CONTINUOUS VIBRATION AND DETERMINED ONLY GEAR DO (N774AX)
- [SDR ABXA20260301080](https://openairdocs.org/sdr/ABXA20260301080), Mar 1, 2026: Boeing 767375. DOOR. DEFECTIVE. AT 3000 AGL DURING THE AFTER-TAKEOFF CHECKLIST, THE GEAR LEVER WAS MOVED TO THE OFF POSITION, DURING WHICH THE RT MLG EX (N1709A)
- [SDR DALA2026030401477](https://openairdocs.org/sdr/DALA2026030401477), Feb 27, 2026: Airbus A319114. DOOR. MALFUNCTIONED. LANDING GEAR DOORS NOT CLOSED, RT DOOR CLOSED, PROXIMITY SENSOR (26GA)TGT POS, LGCIU 1, RT DOOR CLOSED, PROXIMITY SENSOR (N369NB)
- [SDR CALA2026022614113](https://openairdocs.org/sdr/CALA2026022614113), Feb 19, 2026: Airbus A320232. VALVE. FAULTED. MLG NOT UPLOCKED ECAM PROC DID NOT RESOLVE ISSUE. GEAR REPORTED TO HAVE RETRACTED, BUT DID NOT STAY UPLOCKED TO ALLOW GE (N495UA)
- [SDR DALA2025122809437](https://openairdocs.org/sdr/DALA2025122809437), Dec 23, 2025: Boeing 767332. SEQUENCE VALVE. FAULTED. ATB- DUE TO GEAR DISAGREE AND GEAR DOOR MESSAGE AFTER GEAR SELECTED UP. REPLACED GEAR DOOR SEQUENCE VALVE. REPLACE DOOR  (N186DN)
- [SDR SWIA2025121500004](https://openairdocs.org/sdr/SWIA2025121500004), Dec 14, 2025: Cndair CL6002B19. WARNING MESSAGE. ILLUMINATED. GEAR DISAGREE/ NOSE GEAR DOOR OPEN WARMING MESSAGE ON ROTATION. EXECUTED THE QRH AND RETURNED TO THE FIELD, ALL GEAR CAM (N448SW)
- [SDR 2026FA0000003](https://openairdocs.org/sdr/2026FA0000003), Dec 10, 2025: Cessna 525B. TORQUE TUBE. BROKEN. NOSE LANDING GEAR DOORS WOULD NOT RETRACT (N525CR)
- [SDR IPXA2025120345461](https://openairdocs.org/sdr/IPXA2025120345461), Dec 3, 2025: Boeing 74744AF. DOOR. FAULTED. ATB AT 1058Z FOR EICAS GEAR DOOR. QRH PG 14.13 STS MSG GEAR DOOR & GEAR MONITOR DEBRIEF WITH CREW CAPTAIN REFERENCED HEA (N574UP)
- [SDR IPXA2025120150436](https://openairdocs.org/sdr/IPXA2025120150436), Nov 26, 2025: Airbus A300F4622R. DOOR. INOPERATIVE. ON DEPARTURE AFTER GEAR RETRACTED BOTH MAIN LANDING GEAR DOORS REMAINED OPEN. JACKED AIRCRAFT ACCOMPLISHED NORMAL GEAR R (N141UP)
- [SDR AALA202510316294](https://openairdocs.org/sdr/AALA202510316294), Oct 30, 2025: Boeing 777223. SWITCH. INOPERATIVE. AIRCRAFT WAS GROUNDED: GEAR DOORS WILL NOT OPEN USING GROUND OPERATION ARM AND OPEN SWITCHES. "ALT GEAR EXTEND" STATUS M (N753AN)
- [SDR FDEA202510242088](https://openairdocs.org/sdr/FDEA202510242088), Oct 24, 2025: Boeing 777F. ACTUATOR. FAULTED. WHEN GEAR WAS RETRACTED, GOT GEAR DOOR DISAGREE. NOSE GEAR SHOWED HATCH MARKS. AIRCRAFT NOISE WAS LOUDER THAN NORMAL. RA (N846FD)
- [SDR ABXA20250905213](https://openairdocs.org/sdr/ABXA20250905213), Sep 5, 2025: Boeing 767375. SEQUENCE VALVE. INOPERATIVE. GEAR DOOR S EICAS MESSAGE AFTER TAKEOFF ,WHEN GEAR LEVER WAS MOVE FROM UP TO OFF. LIGHT WENT BLUE AFTER ACCOMPLISH (GEAR (N1709A)
- [SDR ANCF2025081925](https://openairdocs.org/sdr/ANCF2025081925), Aug 19, 2025: Airbus A320214. DOOR. LACK OF LUBE. L/G DOORS NOT CLOSED, IAW AMM 12-32-22-640-065-A STEP A (3). CLEANING GREASE NLG UPLOCK, AND TASK 32-31-00-720-003-A FUN (N763AV)
- [SDR AALA202508155051](https://openairdocs.org/sdr/AALA202508155051), Aug 13, 2025: Boeing 737823. WARNING SYSTEM. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: GEAR HANDLE WOULD RAISE ON TAKEOFF; AIRCRAFT EMERGENCY LANDED S (N903NN)
- [SDR AALA202507217903](https://openairdocs.org/sdr/AALA202507217903), Jul 20, 2025: Boeing 737823. LANDING GEAR. ABNORMAL. AIRCRAFT WAS GROUNDED: THE NOSE GEAR DOORS OPENED WHILE ON APPROACH 4,000 AND 3,000 (VERY LOUD WIND NOISE ).THE RED NOSE (N959AN)
- [SDR IPXA2025043003663](https://openairdocs.org/sdr/IPXA2025043003663), Apr 29, 2025: Boeing 76734AF. DOOR. BINDING. GEAR DISAGREE JACKED AIRCRAFT REF MM 07-11-01. RETRACTED GEAR SEVERAL TIMES REF MM 32-32-00. OBSERVED THAT WHEN GEAR WAS (N305UP)
- [SDR DALA2025042403214](https://openairdocs.org/sdr/DALA2025042403214), Apr 23, 2025: Boeing 7572Q8. DOOR. MALFUNCTIONED. SHIP 6809 ON FINAL APP GEAR DOORS CAUTION. RAN QRH AND CONTINUED WITH LANDING. RAMP CREW SAID RIGHT MAIN GEAR DOOR WAS S (N713TW)
- [SDR CALA2025032603219](https://openairdocs.org/sdr/CALA2025032603219), Mar 23, 2025: Boeing 737924ER. PIN. INSTALLED. AFTER TAKEOFF NOSE GEAR WOULDNT RETRACT RAN GEAR DIAGREE CHECKLI ST RTRN TO AIRPORT INTIAL EVALUTION FOUND A "DOWNLOCK P (N69839)
- [SDR SWAA2025031806548](https://openairdocs.org/sdr/SWAA2025031806548), Mar 18, 2025: Boeing 7378H4. DOOR. OUT OF ALIGNMENT. LANDING GEAR WILL NOT RETRACT AFTER TAKEOFF ALL THREE GREEN + (3) RED LIGHTS ILLIUMINATED <[01]. T/S IAW FIM 32-30 TASK  (N8556Z)
- [SDR SWAA2025050604854](https://openairdocs.org/sdr/SWAA2025050604854), Mar 12, 2025: Boeing 73776Q. STRUT. CRACKED. L/H MLG GEAR STRUT DOOR IS CRACKED<[01] UPDATED STEPS 1;2 FOR REMOVAL L/H MLG SHOCK STRUT DOORS;[02] COMPLETED STEPS 2;4 (N7815L)
- [SDR CALA2025012902104](https://openairdocs.org/sdr/CALA2025012902104), Jan 28, 2025: Airbus A320232. ROD. OUT OF ALIGNMENT. L/G DOORS NOT CLOSED ECAM WITH FAULT MSGS N LG DOOR UPLOCK(2534GM)/(2531GM) /IDLGCIU 2 AND N LG DOOR UPLOCK(2534GM)/(253 (N449UA)
- [SDR CALA2025012301973](https://openairdocs.org/sdr/CALA2025012301973), Jan 21, 2025: Airbus A320232. WARNING MESSAGE. ILLUMINATED. L/G DOORS NOT CLOSEDECAM ON DEPARTURE. NOSEGEAR DOORS INDICATING NOT CLOSED. GROUND TIME AND LABOR HOURS INFORMATION UPD (N449UA)
- [SDR DXTA2025012202054](https://openairdocs.org/sdr/DXTA2025012202054), Jan 20, 2025: Bombdr BD7001A12. DOOR. MALFUNCTIONED. AFTER DEPLOYING GEAR FOR LANDING, RECEIVED AN AMBER R MAIN GEAR DOOR CAS MESSAGE AND AN AMBER L MAIN GEAR DOOR CAS MESSA (N181QS)
- [SDR AALA202412302312](https://openairdocs.org/sdr/AALA202412302312), Dec 29, 2024: Airbus A321231. DOOR. OPEN. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO DFW DUE TO THE FLIGHT CREW REPORTING THAT  (N161AA)
- [SDR DXTA2024111101097](https://openairdocs.org/sdr/DXTA2024111101097), Nov 8, 2024: Cessna 680SOV. DOOR. MALFUNCTIONED. NLG DOOR: CRUISING AT FL410 THE NOSE GEAR LANDING UNLOCK LIGHT CAME ON FOR ABOUT 1 SECOND AND A LOUD AND ABRUPT CLOSING  (N369QS)
- [SDR FDEA202411061638](https://openairdocs.org/sdr/FDEA202411061638), Nov 6, 2024: Doug MD11F. CABLE. DAMAGED. AT BLOCK IN RIGHT MLG DOOR OPEN. REMOVED AND REPLACED RIGHT LOWER AFT GEAR DOOR FOLLOW-UP CABLE. PERFORMED ALL TEST EXEC (N528FE)
- [SDR DALA2024102810449](https://openairdocs.org/sdr/DALA2024102810449), Oct 25, 2024: Boeing 757232. SEQUENCE VALVE. INOPERATIVE. SHIP 0668 -ATB- DUE TO LEFT MAIN LANDING GEAR WOULD NOT RETRACT. CORRECTIVE ACTION: ADJ LH MLG DOOR ACTUATOR, REMOVED AN (N668DN)
- [SDR HALA20241022056](https://openairdocs.org/sdr/HALA20241022056), Oct 21, 2024: Boeing 717200. PSEU. FAULTED. GEAR DOOR OPEN INFLIGHT. TROUBLESHOT PER FIM 32-60 TASK 802. NO FAULTS EXIST ON PSEU CURRENT FAULTS. COMPLETED "FIM 32-6 (N488HA)
- [SDR DXTA2024092600646](https://openairdocs.org/sdr/DXTA2024092600646), Sep 23, 2024: Textrn TEXTRON700. UPLOCK SWITCH. FAULTED. IN CRUISE AT FL410, VERY LOUD FLUTTER SOUND WAS FELT AND HEARD. THEN ABOUT 30 SECONDS LATER AN AMBER GEAR DOOR OPEN CAS  (N800QS)
- [SDR DALA2024072307431](https://openairdocs.org/sdr/DALA2024072307431), Jul 23, 2024: Boeing 757232. SAFETY VALVE. FAULTED. SHIP 685 DURING APPROACH WE RECEIVED A GEAR DOOR EICAS MSG RT GEAR DOOR NOT CLOSED. CORRECTIVE ACTION: T/S -R/R DOOR SAF (N685DA)
- [SDR CALA2024071600502](https://openairdocs.org/sdr/CALA2024071600502), Jul 16, 2024: Boeing 7879. CONTROL VALVE. FAULTED. AFTER TAKE OFF, NLG DOORS FAILED TO CLOSE AFTER L/G RETRACTION, RESULTING IN AIR TURNBACK. TROUBLESHOOTING REVEALED NO I (N27958)
- [SDR AALA202405146020](https://openairdocs.org/sdr/AALA202405146020), May 12, 2024: Boeing 777323ER. WARNING MESSAGE. ILLUMINATED. AIRCRAFT WAS GROUNDED: EICAS WARNING DOOR AFT CARGO AFTER TAKEOFF. AIRCRAFT RETURNED TO FIELD EMERGENCY DECLARED AND LAN (N734AR)
- [SDR AALA202405017998](https://openairdocs.org/sdr/AALA202405017998), Apr 28, 2024: Boeing 737823. MODULE. FAULTY. AIRCRAFT WAS GROUNDED: REPEAT WRITE UP; WITH THE LANDING GEAR LEVER DOWN 3 GREEN AND 3 RED UNSAFE LIGHTS DISPLAYED. GEAR (N920AN)
- [SDR ANCF20250418007](https://openairdocs.org/sdr/ANCF20250418007), Apr 18, 2024: Airbus A320214. VALVE. FAULTED. LGCIU 1 FAULT IAW AMM 32-31-31-00-001-A/400-001-A RENMOVAL AND INSTALLATION OF SELECTOR VALVE MANIFOLD ASSEMBLY WAS PERF (N954AV)
- [SDR IPXA2024032926686](https://openairdocs.org/sdr/IPXA2024032926686), Mar 29, 2024: Boeing 76734AF. WARNING MESSAGE. ILLUMINATED. GEAR DOOR LIGHT ILLUMINATED FOLLOWED BY GEAR DOOR EICAS MSG GEAR EXTENDED AT 170 KTS, SEE PREVIOUS LOGBOOK ENTRY TROUBLE (N337UP)
- [SDR DALA2024032303707](https://openairdocs.org/sdr/DALA2024032303707), Mar 23, 2024: Boeing 717200. CYLINDER. FAULTED. SHIP 9584 -ATB/GEAR/DE- FOLLOWING TAKEOFF AND LANDING GEAR RETRACTION, THE CREW RECEIVED A "LEFT MAIN GEAR UNSAFE" MESSA (N986AT)
- [SDR SIMA2024032019001](https://openairdocs.org/sdr/SIMA2024032019001), Mar 19, 2024: Emb ERJ170200LR. LINKAGE. FAILED. LG NOSE DOOR OPEN ON TAKE OFF RAR R/H LG NOSE AFT DOOR LINKAGE IAW EMB 175 AMM 32-22-03. R/H LG NOSE AFT DOOR LINKAGEA D (N214NN)
- [SDR ANCF20240318007](https://openairdocs.org/sdr/ANCF20240318007), Mar 18, 2024: Airbus A320214. DOOR. MALFUNCTIONED. WHEN SELECTING L/G DOWN ON APPROACH , L/G DOOR NOT CLOSED WHEN SELECTING L/G DOWN ON APPROACH , L/G DOOR NOT CLOSED ECAM (N957AV)
- [SDR AALA202403129886](https://openairdocs.org/sdr/AALA202403129886), Mar 8, 2024: Airbus A319112. CONTROL CABLE. STIFF. AIRCRAFT WAS GROUNDED: AFTER TAKEOFF AND GEAR RETRACTION RECEIVED ECAM INDICATING GEAR DOORS NOT RETRACTED. LOUD RUMBLIN (N721UW)
- [SDR SWAA2023122936127](https://openairdocs.org/sdr/SWAA2023122936127), Dec 28, 2023: Boeing 7378H4. DOOR. OPEN. LANDING GEAR DID NOT COME UP AFTER TAKEOFF; NO OVERWEIGHT LANDING.<[01] FOUND MANUAL EXTENSION DOOR OPEN; SECURED DOOR A (N8535S)
- [SDR A6WA20231218681](https://openairdocs.org/sdr/A6WA20231218681), Dec 14, 2023: Cndair CL6002B19. UNKNOWN. UNKNOWN. AFTER GEAR RETRACTION RECIEVED GEAR DISAGREE AND NOSE DOOR OPEN WARNING MSGS. C/W QRH MSGS CLEARED. ****AIRCRAFT REMOVED (N471ZW)
- [SDR DALA2023121410270](https://openairdocs.org/sdr/DALA2023121410270), Dec 13, 2023: Airbus A321211. UNKNOWN. UNKNOWN. SHIP 3039 EXCESSIVE PLAY ON RH MLG DOOR ACTUATOR UPPER AND LOWER SPHERICAL BEARINGS (2 EA). CORRECTIVE ACTION: REPLACED  (N339DN)
- [SDR UIEA2023120800977](https://openairdocs.org/sdr/UIEA2023120800977), Dec 6, 2023: Boeing 74747UF. ACTUATOR. UNKNOWN. PILOT REPORTS RH BODY GEAR DOOR DROOPS IN FLIGHT. GEAR DOORS OPEN WHEN LANDING GEAR HANDLE IS IN THE OFF POSITION.(<P>RE (N408MC)
- [SDR CALA2023112903498](https://openairdocs.org/sdr/CALA2023112903498), Nov 28, 2023: Boeing 737724. ROD. BROKEN. LOUD NOSE GEAR NOISE DURING RETRACTION ON DEPARTURE. EXCESSIVE NOISE WITH GEAR UP. FOUND RIGHT NLG DOOR LINKAGE SEPARATE (N21723)
- [SDR 7C7A2023111900060](https://openairdocs.org/sdr/7C7A2023111900060), Nov 19, 2023: Dhav DHC8106. UNKNOWN. UNKNOWN. RIGHT FORWARD MAIN GEAR DOOR LINKAGE NOT CONNECTED TO DOOR. (N880EA)

All 2,248: https://openairdocs.org/jasc/3231/reports.md

## Other codes in chapter 32

- [JASC 3200](https://openairdocs.org/jasc/3200): Landing Gear System (862 reports)
- [JASC 3201](https://openairdocs.org/jasc/3201): Landing Gear/Wheel Fairing (45 reports)
- [JASC 3210](https://openairdocs.org/jasc/3210): Main Landing Gear (1,879 reports)
- [JASC 3211](https://openairdocs.org/jasc/3211): Main Landing Gear Attach Section (1,177 reports)
- [JASC 3212](https://openairdocs.org/jasc/3212): Emergency Flotation Section (759 reports)
- [JASC 3213](https://openairdocs.org/jasc/3213): Main Landing Gear Strut/Axle/Truck (2,210 reports)
- [JASC 3220](https://openairdocs.org/jasc/3220): Nose/Tail Landing Gear (1,842 reports)
- [JASC 3221](https://openairdocs.org/jasc/3221): Nose/Tail Landing Gear Attach Section (256 reports)
- [JASC 3222](https://openairdocs.org/jasc/3222): Nose/Tail Landing Gear Strut/Axle (2,074 reports)
- [JASC 3230](https://openairdocs.org/jasc/3230): Landing Gear Retraction/Extension System (11,170 reports)
- [JASC 3232](https://openairdocs.org/jasc/3232): Landing Gear Door Actuator (740 reports)
- [JASC 3233](https://openairdocs.org/jasc/3233): Landing Gear Actuator (2,685 reports)
- [JASC 3234](https://openairdocs.org/jasc/3234): Landing Gear Selector (2,085 reports)
- [JASC 3240](https://openairdocs.org/jasc/3240): Landing Gear Brake System (6,451 reports)
- [JASC 3241](https://openairdocs.org/jasc/3241): Brake Anti-Skid Section (1,310 reports)
- [JASC 3242](https://openairdocs.org/jasc/3242): Brake (1,696 reports)
- [JASC 3243](https://openairdocs.org/jasc/3243): Master Cylinder/Brake Valve (445 reports)
- [JASC 3244](https://openairdocs.org/jasc/3244): Tire (2,748 reports)
- [JASC 3245](https://openairdocs.org/jasc/3245): Tire Tube (390 reports)
- [JASC 3246](https://openairdocs.org/jasc/3246): Wheel/Ski/Float (2,489 reports)
- [JASC 3250](https://openairdocs.org/jasc/3250): Landing Gear Steering System (2,362 reports)
- [JASC 3251](https://openairdocs.org/jasc/3251): Steering Unit (338 reports)
- [JASC 3252](https://openairdocs.org/jasc/3252): Shimmy Damper (79 reports)
- [JASC 3260](https://openairdocs.org/jasc/3260): Landing Gear Position and Warning (13,418 reports)
- [JASC 3270](https://openairdocs.org/jasc/3270): Auxiliary Gear (Tail Skid) (84 reports)
- [JASC 3297](https://openairdocs.org/jasc/3297): Landing Gear System Wiring (2,407 reports)

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