# JASC 5270: Door Warning System

- Type: JASC system/component code (FAA)
- ATA chapter: 52 Doors
- Title in the code table: DOOR WARNING SYSTEM
- Service difficulty reports: 8,777
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=46
- Page: https://openairdocs.org/jasc/5270

## What it covers

The system which is used to indicate to flight crews whether the exterior doors are closed and properly latched. Does not include the landing gear position warning indications which are covered in JASC code 3260. Typical parts are switch, lamp, horn, relay, etc. The suspect door should be identified if known.

## Service difficulty reports (8,777, newest 50)

- [SDR DALA2026101605688](https://openairdocs.org/sdr/DALA2026101605688), Oct 16, 2026: Airbus A330323. PROXIMITY SENSOR. FAULTED. RECIEVED ECAM "DOOR L AFT CABIN" AND DOOR/OXYPAGE SHOWED DOOR 4L NOT LOCKED, FL390 APPROX 5HRS AT CRUISE, CABIN VERT SPE (N811NW)
- [SDR DXTA2026101910200](https://openairdocs.org/sdr/DXTA2026101910200), Oct 15, 2026: Cessna 680A. PROXIMITY SWITCH. FAULTED. AMBER CABIN DOOR OPEN AND CHECK DOORS CAS MESSAGES CAME ON IN CRUISE AT FL410. COMPLETED QRH AND CAS MESSAGES REMAINED F (N622QS)
- [SDR DXTA2026101510167](https://openairdocs.org/sdr/DXTA2026101510167), Oct 13, 2026: Cessna 680A. PCB. DEFECTIVE. DURING INITIAL CLIMBOUT CHECK DOORS AND CABIN DOOR OPEN CAS ILLUMINATED. SAME MESSAGES APPEARED DURING PREFLIGHT AND WER (N572QS)
- [SDR 141A2026101200001](https://openairdocs.org/sdr/141A2026101200001), Oct 11, 2026: Cessna 208B. WARNING MESSAGE. ILLUMINATED. NORMAL PREFLIGHT DUTIES WERE ACCOMPLISHED AND THE DOORS WERE VERIFIED LATCHED INSIDE AND OUT, TAXIED OUT WITH NO INCIDEN (N750Z)
- [SDR CALA2026101420363](https://openairdocs.org/sdr/CALA2026101420363), Oct 10, 2026: Boeing 737924ER. WARNING MESSAGE. ILLUMINATED. REJECTED TAKEOFF DUE TO MAIN CABIN DOOR MASTER CAUTION LIGHT. LESS THAN 100KTS PERFORMED FORWARD ENTRY DOOR CHECK IAW AM (N62889)
- [SDR AALA202610125336](https://openairdocs.org/sdr/AALA202610125336), Oct 9, 2026: Airbus A321211. DOOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: DOOR 3R INDICATES OPEN ON ECAM DOOR/OXY PAGE. DOOR IS DISARMED LOCKED AND CLOSED IN CABIN. (O (N190UW)
- [SDR AALA202610116860](https://openairdocs.org/sdr/AALA202610116860), Oct 8, 2026: Airbus A321231. BOTTLE. LOW PRESSURE. AIRCRAFT WAS GROUNDED: CABIN DOOR PRESSURE ALERT FOR THE L1 DOOR ON THE FORWARD FLIGHT ATTENDANT CONTROL PANEL. MAINTENA (N524UW)
- [SDR AALA202610106607](https://openairdocs.org/sdr/AALA202610106607), Oct 7, 2026: Airbus A319132. SLIDE. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: 2L DOOR SLIDE INDICATES DISARMED ON LOWER ECAM IN FLIGHT HOWEVER IT INDICATES ARMED AT THE DO (N834AW)
- [SDR AALA202610085053](https://openairdocs.org/sdr/AALA202610085053), Oct 6, 2026: Airbus A319132. PROXIMITY SENSOR. OUT OF ADJUST. AIRCRAFT WAS NOT GROUNDED: L4 DOOR SLIDE NOT SHOWING ARMED IN CRUISE FLIGHT. MAINTENANCE TROUBLESHOOTED IN REFERENCE TO  (N834AW)
- [SDR SWIA2026100677527](https://openairdocs.org/sdr/SWIA2026100677527), Oct 6, 2026: Cndair CL6002C11. SENSOR. OUT OF RIG. SERVICE DOOR CAUTION DURING CLIMB OUT, RAN QRH, DECIDED TO COME BACK TO CHICAGO. FLT 5784. INTERROGATED MDC, FOUND OUTER (N532GJ)
- [SDR AALA202610073187](https://openairdocs.org/sdr/AALA202610073187), Oct 5, 2026: Airbus A319132. PROXIMITY SENSOR. FAULT MESSAGE. AIRCRAFT WAS GROUNDED: L4 DOOR SLIDE NOT SHOWING ARMED DURING CRUISE ON THE DOOR-OXY ECAM PAGE - VERIFIED WITH FLIGHT AT (N834AW)
- [SDR DXTA2026100710060](https://openairdocs.org/sdr/DXTA2026100710060), Oct 5, 2026: Textrn TEXTRON700. PCB. FAULTED. CABIN DOOR WILL CLOSE AND HANDLE STOWS, HOWEVER, YELLOW LIGHT WILL NOT GO OUT AND CAS MESSAGE WILL NOT GO OUT. UPON RUNN (N892QS)
- [SDR DALA2026101305613](https://openairdocs.org/sdr/DALA2026101305613), Oct 4, 2026: Boeing 757351. SWITCH. OUT OF ADJUST. SLIDE INDICATOR LIGHT INOPERATIVE. COMPLIED WITH AMM 25-66, PROX SWITCH ADJ. (1848513)(AIRCRAFT GROUNDED) (N590NW)
- [SDR CALA2026100520109](https://openairdocs.org/sdr/CALA2026100520109), Oct 4, 2026: Boeing 767322. LIGHT. UNKNOWN. EMERGENCY EXIT UNARMED LIGHT INTERMITTENT THE LIGHT BEING ADDRESSED IS A PINK CALL LIGHT. THE LIGHT WAS ILLUMINATED DUE  (N642UA)
- [SDR AALA202610075185](https://openairdocs.org/sdr/AALA202610075185), Oct 3, 2026: Airbus A321211. SDAC. FAULT MESSAGE. AIRCRAFT WAS NOT GROUNDED: R3 EMERGENCY EXIT DOOR SHOWS OPEN ON ECAM DOOR PAGE - MAINTENANCE REPLACED POSITION 1 SDAC 1W (N190UW)
- [SDR AALA202610054320](https://openairdocs.org/sdr/AALA202610054320), Oct 2, 2026: Airbus A321211. WARNING LIGHT. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: AFT LEFT SIDE PASSENGER DOOR SHOWING OPEN INDICATION WITH DOOR CLOSED AND LOCKED. MAINTENANCE (N184US)
- [SDR ABXA20261002455](https://openairdocs.org/sdr/ABXA20261002455), Oct 2, 2026: Boeing 7673P6. BRACKET. DAMAGED. ENTRY DOOR LIGHT NOT EXTINGUISHING WHEN SHUTTING L1 DOOR. REMOVED AND REPLACED ENTRY DOOR SENSOR BRACKET IAW B767 AMM 52 (N764CK)
- [SDR IPXA2026101229819](https://openairdocs.org/sdr/IPXA2026101229819), Oct 1, 2026: Boeing 74745E. WARNING MESSAGE. ILLUMINATED. L1 DOOR NOT SHOWING CLOSED AND LATCHED ON EXTERIOR DOOR SYNOPTIC WHEN L1 DOOR CLOSED FOUND L-1 DOOR CLOSE SWITCH NG.REPL (N578UP)
- [SDR DALA2026100605519](https://openairdocs.org/sdr/DALA2026100605519), Oct 1, 2026: Boeing 767432ER. BUTTON. MISSING. DURING ETOPS-PDC, DOOR L1, DOOR SLIDE ARMED INDICATING LIGHT PUSHBUTTON AND BULB MISSING. DEFERRED IAW MEL 52-73-01 (951 (N841MH)
- [SDR IPXA2026100239996](https://openairdocs.org/sdr/IPXA2026100239996), Oct 1, 2026: Airbus A300F4622R. WARNING BUZZER. BROKEN. AVI CREW ENTRY DOOR, DOOR WARNING BUZZER (FINN: 11WN) IS BROKEN. (N158UP)
- [SDR IPXA2026100129819](https://openairdocs.org/sdr/IPXA2026100129819), Oct 1, 2026: Boeing 74745E. WARNING MESSAGE. INDICATION. L1 DOOR NOT SHOWING CLOSED AND LATCHED ON EXTERIOR DOOR SYNOPTIC WHEN L1 DOOR CLOSED DEFER PER MEL 52-73-1-0-1. (N578UP)
- [SDR DXTA2026100209947](https://openairdocs.org/sdr/DXTA2026100209947), Sep 29, 2026: Textrn TEXTRON700. ACTUATOR. FAULTED. AFTER TAKE OF AN AMBER MLG DOOR OPEN APPEARED FOR A SHORT TIME. FLT BEFORE, WAS SIMULAR BUT ALSO AN AMBER MLG DISAGREE C (N896QS)
- [SDR AALA202610014506](https://openairdocs.org/sdr/AALA202610014506), Sep 29, 2026: Airbus A321211. PROXIMITY SWITCH. OUT OF ADJUST. AIRCRAFT WAS NOT GROUNDED: 3R EMERGENCY EXIT AMBER WITH THE DOOR CLOSED. MAINTENANCE ADJUSTED AND OPS CHECKED RIGHT-HAND (N190UW)
- [SDR DALA2026100705549](https://openairdocs.org/sdr/DALA2026100705549), Sep 28, 2026: Boeing 757231. LIGHT. UNSECURE. L2 DOOR SLIDE LIGHT KEEPS FALLING OUT. R & R SLIDE LIGHT ON L2 PER 25-64. OPS NORM. (7695252)(AIRCRAFT GROUNDED) (N711ZX)
- [SDR DALA2026100605527](https://openairdocs.org/sdr/DALA2026100605527), Sep 28, 2026: Boeing 767332. INDICATOR. INOPERATIVE. L1 DOOR INDICATION AT F/A PANEL INOP AFTER PUSHBACK. REMOVED & REPLACED LIGHT AT L1 DOOR FA SLIDE PANEL OPS CHK OK (1837 (N1200K)
- [SDR AALA202609300897](https://openairdocs.org/sdr/AALA202609300897), Sep 28, 2026: Airbus A321253NX. DOOR. FAULT MESSAGE. AIRCRAFT WAS GROUNDED: AFTER TAKE OFF WHILE CLIMBING THRU 1000 FT THE FLIGHT CREW RECIEVED A MASTER CAUTION SINGLE-CHIME (N471AN)
- [SDR AALA202609282161](https://openairdocs.org/sdr/AALA202609282161), Sep 27, 2026: Airbus A321211. INDICATOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: 1R DOOR IS INDICATING ARMED WHEN IT'S NOT. RED WARNING IS CONSTANT- MAINTENANCE REPLACED R1 S (N197UW)
- [SDR KCSA2026092755](https://openairdocs.org/sdr/KCSA2026092755), Sep 27, 2026: Boeing 7474B5F. WARNING MESSAGE. FALSE ACTIVATION. DOOR F/D OVHD ADVISORY. PERFORMED OPS CHECK FOR CREW COMPARTMENT OVERHEAD HATCH IAW AMM 52-21-00. OPS CHECK GOOD. NO DEF (N715CK)
- [SDR DALA2026100705548](https://openairdocs.org/sdr/DALA2026100705548), Sep 26, 2026: Boeing 757232. PROXIMITY SENSOR. FAULTED. R4 SLIDE LIGHT INOPERATIVE. R & R AFT RT PROXIMITY SENSOR IAW AMM 25-66. (1832533)(AIRCRAFT GROUNDED) (N690DL)
- [SDR DALA2026093005443](https://openairdocs.org/sdr/DALA2026093005443), Sep 26, 2026: Boeing 737932ER. WARNING LIGHT. FAULTED. FWD ENTRY DOOR LT WILL NOT EXTINGUISH. PERFORMED L1 DOOR CHKD IAW AMM 52-11. C/W ERA 610188-14TR TIME LIMITED REPAIR SEC (N822DN)
- [SDR AALA202609303439](https://openairdocs.org/sdr/AALA202609303439), Sep 26, 2026: Airbus A319132. PROXIMITY SENSOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: L4 DOOR SLIDE ERRONEOUSLY SHOWING NOT ARMED DURING MID LEVEL CLIMB AND DESCENT - THE L4 DOOR  (N834AW)
- [SDR IXXA20260926087](https://openairdocs.org/sdr/IXXA20260926087), Sep 26, 2026: Boeing 767323. PSEU. INTERMITTENT. EMERGENCY DOORS LIGHT ON OVERHEAD PANEL INTERMITTENTLY FLASHING. REMOVED AND REPLACED PROXIMITY SENSOR ELECTRONIC UNIT I (N233AZ)
- [SDR AALA202609271901](https://openairdocs.org/sdr/AALA202609271901), Sep 25, 2026: Airbus A321253NX. PROXIMITY SENSOR. OUT OF ADJUST. AIRCRAFT WAS NOT GROUNDED: AFTER TAKEOFF CLIMBING THROUGH APPROX. 1500 AGL ECAM CAUTION MESSAGE RT DOOR FWD OVERWING EXI (N315XR)
- [SDR DALA2026092905406](https://openairdocs.org/sdr/DALA2026092905406), Sep 24, 2026: Boeing 767332. PROXIMITY SENSOR. FAULTED. EICAS -RT WING SLIDE- FLASHES INTERMITTENTLY DURING CRUISE. R & R RIGHT OVERWING PROXIMITY SENSOR S219 IAW IAW AMM 52-71 (N177DZ)
- [SDR AALA202609277475](https://openairdocs.org/sdr/AALA202609277475), Sep 24, 2026: Airbus A321231. DOOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: 1L DOOR DOES NOT SHOW ARMED WHEN CLOSED AND LOCKED ON DOOR/OXY SYSTEMS PAGE. (OPEN) (N578UW)
- [SDR IPXA2026092263257](https://openairdocs.org/sdr/IPXA2026092263257), Sep 22, 2026: Airbus A300F4622R. CONTACT. INOPERATIVE. SLIDE RELEASE WARNING LIGHT DOES NOT ILLUMINATE DURING TEST, REPLACED CONTACTS IAW ESPM 20-48-25-01. REMOVED AND REPLACE (N120UP)
- [SDR ABXA20260921429](https://openairdocs.org/sdr/ABXA20260921429), Sep 21, 2026: Boeing 767316. WARNING LIGHT. INTERMITTENT. MASTER WARNING PARTIAL TONE AND DISCRETE WARNING LIGHT INTERMITTENTLEY FLASHING ON AND OFF VERIFIED TO BE MCD DOOR IND.  (N227CY)
- [SDR DALA2026092105262](https://openairdocs.org/sdr/DALA2026092105262), Sep 21, 2026: Boeing 717200. ANNUNCIATOR. INOPERATIVE. R1 DOOR WARNING ANNUNCIATION INOP. T/S PER B717 FRMFIM 52-70-00-810-809, PERFORMED PSEU BITE TEST, TEST PASSED, NO DEFEC (N994AT)
- [SDR DXTA2026092309812](https://openairdocs.org/sdr/DXTA2026092309812), Sep 20, 2026: Cessna 560XL. SWITCH. OUT OF ADJUST. ON INITIAL CLIMBOUT, THE AMBER CABIN DOOR OPEN CAS ILLUMINATED. THE MESSAGE REMAINED FOR THE DURATION OF THE FLIGHT. BEF (N16QS)
- [SDR DALA2026092205278](https://openairdocs.org/sdr/DALA2026092205278), Sep 20, 2026: Boeing 767332. CONTROL CARD. FAULTED. RT WING SLIDE EICAS MESSSAGE ILLUMINATED INTERMITTENTLY DURING FLIGHT. T/S IAW FIM 52-71-00-815-816. BITE FAULT ON PSEU, (N177DZ)
- [SDR DALA2026092205277](https://openairdocs.org/sdr/DALA2026092205277), Sep 20, 2026: Boeing 767432ER. BUTTON. OUT OF ADJUST. R2 SLIDE ARM LIGHT INOP. SLIDE BUTTON WAS PUSHED IN WITH EXCESSIVE FORCE. ADJUSTED BUTTON AND SECURED IT. OPS CHECKS GOO (N831MH)
- [SDR CALA2026100720209](https://openairdocs.org/sdr/CALA2026100720209), Sep 19, 2026: Boeing 767322. UNKNOWN. FAULTED. LEFT FWD EMERGENCY DOOR EICAS APPEARED. SWITCHED COMPER TO R GT PER LON MNTNC. NO JOY*TS* DUE L FWD EMER DOOR EICAS DISP (N673UA)
- [SDR AALA202609210021](https://openairdocs.org/sdr/AALA202609210021), Sep 18, 2026: Airbus A319132. PROXIMITY SWITCH. OUT OF ADJUST. AIRCRAFT WAS NOT GROUNDED: 2L SLIDE ARM INDICATOR ON ECAM DISPLAY BLINKED AT CRUISE ALTITUDE -THE FLIGHT ATTENDANT CHECK (N834AW)
- [SDR VNAA2026092124901](https://openairdocs.org/sdr/VNAA2026092124901), Sep 18, 2026: Cndair CL6002D24. WARNING MESSAGE. FALSE ACTIVATION. PAX DOOR OUTER HANDLE MSG C/A PERFORMED OPS TEST OF PASSENGER DOOR BEFORE AND AFTER PRESSURIZING THE AIRCRAFT IAW AMM 52 (N638NN)
- [SDR DALA2026092205279](https://openairdocs.org/sdr/DALA2026092205279), Sep 16, 2026: Boeing 767432ER. SWITCH. UNSECURE. SLIDE INDICATOR LIGHT INOP OR DAMAGED. RESECURED SWITCH AND TESTED PER B767-400 AMM 52-73-00. OPS GOOD. (1816663)(AIRCRA (N839MH)
- [SDR N6WA2026091807](https://openairdocs.org/sdr/N6WA2026091807), Sep 16, 2026: Cndair CL6002C11. PROXIMITY SENSOR. OUT OF ADJUST. LEFT OVERWING EMERGENCY EXIT DOOR SHOWS WRONG INDICATION WHILE OPEN. PERFORMED ADJUSTMENT OF THE LT OVERWING EMERG EXIT  (N536GJ)
- [SDR 2026F00208](https://openairdocs.org/sdr/2026F00208), Sep 15, 2026: Beech 300BEECH. WARNING LIGHT. ILLUMINATED. CABIN DOOR LIGHT ON @20300 MSL 6.5 PSI. WENT OFF AT 9200 MSL 0.3 PSI. EMERGENCY CHECKLIST ACCOMPLISHED. AIRCRAFT LANDED  (N72)
- [SDR AALA202609175758](https://openairdocs.org/sdr/AALA202609175758), Sep 14, 2026: Airbus A321211. PROXIMITY SENSOR. DIRTY. AIRCRAFT WAS NOT GROUNDED: ON CLIMB OUT FLIGHT ATTENDANT NOTIFIED THE FLIGHT CREW OF FLASHING CABIN PRESSURE LIGHT ON DO (N169UW)
- [SDR 2026F00204](https://openairdocs.org/sdr/2026F00204), Sep 14, 2026: Beech 300BEECH. WARNING LIGHT. ILLUMINATED. CABIN DOOR WARNING LIGHT ILLUMINATED AT 17,500, STAYED ON UNTIL LANDING (N72)
- [SDR DALA2026092205273](https://openairdocs.org/sdr/DALA2026092205273), Sep 13, 2026: Boeing 767332. INDICATOR. INOPERATIVE. R1 DOOR ARMED LIGHT INOP ON FWD FA PANEL. R & R R1 SLIDE ARM LIGHT ON FAP IAW AMM 33-22. OPS CHK OF SLIDE ARM LIGHT PER  (N1605)

All 8,777: https://openairdocs.org/jasc/5270/reports.md

## Other codes in chapter 52

- [JASC 5200](https://openairdocs.org/jasc/5200): Doors (2,021 reports)
- [JASC 5210](https://openairdocs.org/jasc/5210): Passenger/Crew Doors (45,594 reports)
- [JASC 5220](https://openairdocs.org/jasc/5220): Emergency Exits (7,357 reports)
- [JASC 5230](https://openairdocs.org/jasc/5230): Cargo/Baggage Doors (13,346 reports)
- [JASC 5240](https://openairdocs.org/jasc/5240): Service Doors (8,369 reports)
- [JASC 5241](https://openairdocs.org/jasc/5241): Galley Doors (1,121 reports)
- [JASC 5242](https://openairdocs.org/jasc/5242): Electrical/Electronic Compartment Doors (898 reports)
- [JASC 5243](https://openairdocs.org/jasc/5243): Hydraulic Compartment Doors (71 reports)
- [JASC 5244](https://openairdocs.org/jasc/5244): Accessory Compartment Doors (240 reports)
- [JASC 5245](https://openairdocs.org/jasc/5245): Air Conditioning Doors (224 reports)
- [JASC 5246](https://openairdocs.org/jasc/5246): Fluid Service Doors (694 reports)
- [JASC 5247](https://openairdocs.org/jasc/5247): Auxiliary Power Unit (APU) Doors (407 reports)
- [JASC 5248](https://openairdocs.org/jasc/5248): Tail Cone Doors (45 reports)
- [JASC 5250](https://openairdocs.org/jasc/5250): Fixed Inner Doors (4,093 reports)
- [JASC 5260](https://openairdocs.org/jasc/5260): Entrance Stairs (1,278 reports)
- [JASC 5280](https://openairdocs.org/jasc/5280): Landing Gear Doors (3,549 reports)
- [JASC 5297](https://openairdocs.org/jasc/5297): Door System Wiring (662 reports)

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.