# JASC 2611: Smoke Detection

- Type: JASC system/component code (FAA)
- ATA chapter: 26 Fire Protection
- Title in the code table: SMOKE DETECTION
- Service difficulty reports: 7,428
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=23
- Page: https://openairdocs.org/jasc/2611

## What it covers

The system used to sense and indicate the presence of smoke in all protected areas of the aircraft. Reporting the specific location of a defective part is essential. Typical parts are detector, sensor, wiring, relay, amplifier, test circuit, etc.

## Service difficulty reports (7,428, newest 50)

- [SDR CALA2026102120481](https://openairdocs.org/sdr/CALA2026102120481), Oct 19, 2026: Boeing 757224. SMOKE DETECTOR. FALSE ACTIVATION. LAV SMOKE CAUTION MSG DURING DESCENT, PASSING 16000. NO SMOKE OBSERVED. AFT LT LAV. DEBRIEF CREW & THEY STATED DIDN'T SM (N33103)
- [SDR AALA202610192443](https://openairdocs.org/sdr/AALA202610192443), Oct 18, 2026: Airbus A321253N. SMOKE DETECTOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: SMOKE LAVATORY WARNING ECAM ALERTED FOR 5 SECOND THEN CLEARED - F/A INVESTIGATED LAVS AND FOU (N951XV)
- [SDR AALA202610192281](https://openairdocs.org/sdr/AALA202610192281), Oct 16, 2026: Airbus A321253NX. SMOKE DETECTOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: AT FL340 IN CRUISE ECAM SMOKE LAVATORY SMOKE MASTER CAUTION FO R3 SECONDS THEN CLEARED ITSELF (N462AA)
- [SDR AALA202610192580](https://openairdocs.org/sdr/AALA202610192580), Oct 16, 2026: Airbus A321231. SMOKE DETECTOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: MULTIPLE WHAT APPEAR TO BE FALSE LAVATORY SMOKE ALARM FORWARD IN FLIGHT - MAINTENANCE ACCOMPL (N554UW)
- [SDR QXEA2026102100196](https://openairdocs.org/sdr/QXEA2026102100196), Oct 14, 2026: Emb ERJ170200LR. SMOKE DETECTOR. MALFUNCTIONED. FLIGHT 2117. (FWD) LAV SMOKE EICAS MESSAGE, RAN CHECKLIST, MESSAGE EXTINGUISHED. (NO SMOKE OR FUMES). REMOVED FROM SERVI (N665QX)
- [SDR U2RA2026101600065](https://openairdocs.org/sdr/U2RA2026101600065), Oct 9, 2026: Boeing 747412. SMOKE DETECTOR. MALFUNCTIONED. REFERENCE AML 0099548-2 INTERMITTENT MAIN DECK FIRE MSG ANNOUNCED ONCE DURING FLIGHT- FALSE. AS A RESULT OF T/S ZONE 12  (N702CA)
- [SDR I5PA2026100668801](https://openairdocs.org/sdr/I5PA2026100668801), Oct 6, 2026: Boeing 757230. SMOKE DETECTOR. FAULTED. MAIN CARGO FIRE AURAL IND ON SHORT FINAL - PERFORMED CFMU BITE. FOUND MAIN CARGO SMOKE DET 1A FAULTED. R & R SMOKE DETEC (N688SL)
- [SDR AALA202610079757](https://openairdocs.org/sdr/AALA202610079757), Oct 5, 2026: Airbus A319112. SMOKE DETECTOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: FORWARD LAVATORY SMOKE LIGHTS FLASHING ON AND OFF - FLIGHT ATTENDANT CHECKED AND REPORT NO IS (N722US)
- [SDR ABXA20261005454](https://openairdocs.org/sdr/ABXA20261005454), Oct 5, 2026: Boeing 7673P6. FIRE LOOP. WARNING MESSAGE. R ENG FIRE LP 1 EICAS MESSAGE. DEFERRED "R ENG FIRE LP1" EICAS MESSAGE IAW MEL 26-11-1-1. MX PROCEDURE COMPLIED WITH. MB (N762CK)
- [SDR ABXA20261004445](https://openairdocs.org/sdr/ABXA20261004445), Oct 4, 2026: Boeing 767381. FIRE LOOP. FAULTED. DURING CLIMOUT, STATUS MSG R ENG FIRE LP 1 WOULD NOT CLEAR. AFTER LANDING MAINTENANCE DEFERRED RH ENGINE FIRE LP 1 IAW M (N391CM)
- [SDR AALA202610056738](https://openairdocs.org/sdr/AALA202610056738), Sep 29, 2026: Airbus A321231. SMOKE DETECTOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: DURING FLIGHT HAD SMOKE LAVATORY SMOKE WARNING WHICH THE FLIGHT CREW BELIEVED A PASSENGER WAS (N910AU)
- [SDR O9IA202609230001](https://openairdocs.org/sdr/O9IA202609230001), Sep 23, 2026: Cessna 525B. SMOKE WARNING. FALSE ACTIVATION. ON APPROACH INTO ABI, THE BAGGAGE SMOKE MESSAGE ILLUMINATED. THE CREW DECLARED AN EMERGENCY WITH TOWER AND FIRE EQUIPMEN (N175AA)
- [SDR SCNA20260928410](https://openairdocs.org/sdr/SCNA20260928410), Sep 22, 2026: Boeing 73782R. SMOKE DETECTOR. FALSE ACTIVATION. AFT RIGHT SMOKE DETECTOR IN LAVATORY IS GOING OFF. AFT RIGHT LAV SMOKE DETECTOR REMOVED/REPLACED REF AMM 26-14-01 SMOKE  (N843SY)
- [SDR IPXA2026092275597](https://openairdocs.org/sdr/IPXA2026092275597), Sep 22, 2026: Boeing 7478F. SMOKE DETECTOR. FALSE ACTIVATION. 30 MINS INTO FLIGHT RECEIVED "MD DET MID 2" STATUS MSG FOUND CMC MAINT MSG 26242. T/S CARRIED OUT I.A.W. IFIM 26-16-00-8 (N625UP)
- [SDR AALA202609232535](https://openairdocs.org/sdr/AALA202609232535), Sep 21, 2026: Airbus A321211. SMOKE DETECTOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: SMOKE DETECT ECAM AT CRUISE - FLIGHT ATTENDANT REPORTED NO SMOKE OR ODORS IN LAVATORY - MAINT (N186US)
- [SDR AALA202609187004](https://openairdocs.org/sdr/AALA202609187004), Sep 17, 2026: Airbus A321231. SMOKE DETECTOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: FORWARD LAVATORY SMOKE ECAM DURING CRUISE AND THE FLIGHT ATTENDANT DID NOT BELIEVE IT WAS CAU (N919US)
- [SDR ABXA20260916411](https://openairdocs.org/sdr/ABXA20260916411), Sep 16, 2026: Boeing 767300. WARNING MESSAGE. FALSE INDICATION. LEFT ENG FIRE LP 1 STATUS MESSAGE CAME ON AFTER SHUTDOWN. PERFORMED ENGINE FIRE DETECTION SYSTEM OPERATIONAL TEST IAW AM (N677AZ)
- [SDR ASAA2026091066835](https://openairdocs.org/sdr/ASAA2026091066835), Sep 10, 2026: Airbus A321271N. FIRE LOOP. FAULTED. ENGINE 1 FIRE LOOP A FAULT DURING CLIMB. GROUNDED - YES. PERFORMED TROUBLESHOOTING OF ENG 1 FIRE LOOP A FAULT IAW A321 T (N204HA)
- [SDR CALA2026090919337](https://openairdocs.org/sdr/CALA2026090919337), Sep 8, 2026: Boeing 7879. SMOKE DETECTOR. FALSE ACTIVATION. CREW REPORTS THE OFCR CREW REST SMOKE DETECTOR WENT OFF AFTER ENG START AND ALSO ATTENDANTS REPORT ODOR IN VICINITY OF D (N24980)
- [SDR YENA2026090800736](https://openairdocs.org/sdr/YENA2026090800736), Sep 7, 2026: Airbus A320232. SMOKE DETECTOR. FALSE ACTIVATION. FLT#2662, BGI-JFK. LAV F SMOKE DETECTOR WENT OFF MULTIPLE TIMES DURING FLIGHT APPROXIMATELY EVERY 30 MINS; R/R LAV F SMO (N656JB)
- [SDR ASAA2026090566778](https://openairdocs.org/sdr/ASAA2026090566778), Sep 5, 2026: Boeing 717200. SMOKE DETECTOR. FALSE ACTIVATION. CARGO SMOKE AFT . REQUEST VIA RESET. GROUNDED - YES. PERFORMED FIM 26-22 TASK 805. PERFORMED VIA RESET IN REF TO AMM 31- (N477HA)
- [SDR F3LA202609040447](https://openairdocs.org/sdr/F3LA202609040447), Sep 2, 2026: Airbus A321271NX. SMOKE WARNING. ILLUMINATED. AIR TURN BACK FOR SMOKE, AFT CARGO DETECTION. INBND FLT NR 2633. OTBND FLT NR 2607. FLHT CREW DISCHARGED AFT CARGO BOTTL (N665FR)
- [SDR AALA202609013848](https://openairdocs.org/sdr/AALA202609013848), Aug 30, 2026: Airbus A321211. FILTER. DIRTY. AIRCRAFT WAS NOT GROUNDED: DURING CRUISE FLIGHT THE MID LAVATORY SMOKE ALARM AND ECAM WARNING ACTIVATED MOMENTARILY (LES (N174US)
- [SDR FDEA202608271238](https://openairdocs.org/sdr/FDEA202608271238), Aug 27, 2026: Boeing 7572Q8. SMOKE DETECTOR. INOPERATIVE. ON CLIMBOUT FROM LFT-MEM WE HAD A MAIN CARGO MIDDLE SMOKE DETECTOR LIGHTS 2,3,4 ILLUMINATE . NO OTHER INDICATIORS OF SMO (N995FD)
- [SDR D0DA202608210001](https://openairdocs.org/sdr/D0DA202608210001), Aug 20, 2026: Cessna 525B. SMOKE DETECTOR. FALSE ACTIVATION. BAGAGGE SMOKE DETECTOR WARNING ON FINAL. DECLARED EMERGENCY LANDING. INITIAL INSPECTION UPON LANDING SHOWED NO EVIDENCE  (N535DT)
- [SDR ASAA2026082066433](https://openairdocs.org/sdr/ASAA2026082066433), Aug 20, 2026: Airbus A321271N. SMOKE DETECTOR. FALSE ACTIVATION. LAVAORY SMOKE CAM DURING CRUISE , EXTINGUISHED AFTER A FEW SECONDS. NO ALERTS IN THE CABIN OCCURED. GROUNDED - YES. PERF (N230HA)
- [SDR CALA2026081918732](https://openairdocs.org/sdr/CALA2026081918732), Aug 18, 2026: Boeing 7379. SMOKE DETECTOR. FALSE ACTIVATION. SMOKE DETECTOR WENT OFF IN THE MID LAVATORY WHEN A PASSENGER WAS IN THERE. NO EVIDENCE OF SMOKE OR FIRE. INSPECTED LAV T (N57466)
- [SDR ABXA20260817368](https://openairdocs.org/sdr/ABXA20260817368), Aug 17, 2026: Boeing 767381. FAN. FAULTED. EICAS, M LEVEL AFT DET FAN. DEFERRED IAW MEL ABX-26-16-1-3-1. ACFT RETURNED TO SERVICE. (N390CM)
- [SDR UIEA2026080600684](https://openairdocs.org/sdr/UIEA2026080600684), Aug 7, 2026: Boeing 74747UF. SMOKE DETECTOR. ACTIVATED. SMOKE IN CREW REST EICAS AT 1955Z FOR ABOUT 5 MINS. SMOKE DISSIPATED AND EICAS DID NOT RETURN. REPLACED ALL PACK WATER S (N496MC)
- [SDR DXTA2026080709148](https://openairdocs.org/sdr/DXTA2026080709148), Aug 5, 2026: Emb EMB545. SMOKE DETECTOR. DEFECTIVE. ON DEPARTURE, WHILE CLIMBING UP TO APPROXIMATELY 2,000 FEET, THE AIRCRAFT GENERATED A "CENTER EBAY LH SMOKE" CAS MESSAGE (N283QS)
- [SDR ASAA2026080566152](https://openairdocs.org/sdr/ASAA2026080566152), Aug 5, 2026: Boeing 717200. SMOKE DETECTOR. FAILED. DMI# 407243 CARGO SMOKE AFT FAIL - LAST CARGO SMOKE DETECTOR AMBER [F]. LOWER CARGO COMPARTMENT SMOKE DETECTION SYSTEM D (N494HA)
- [SDR AALA202608065166](https://openairdocs.org/sdr/AALA202608065166), Aug 4, 2026: Airbus A321231. SMOKE DETECTOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: MOMENTARY LAVATORY SMOKE ECAM. CLEARED WITHOUT PILOT INTERVENTION. NO EVIDENCE OF SMOKE. MAIN (N977UY)
- [SDR DXTA2026080609121](https://openairdocs.org/sdr/DXTA2026080609121), Aug 2, 2026: Cndair CL6002B16. SMOKE DETECTOR. DEFECTIVE. RED CAS SMOKE TOILET LIGHT STAYED ON DURING FLGHT NO SMOKE OR FUMES DETECTED CORRECTIVE ACTION: REPLACED SMOKE DETECTOR. (N253QS)
- [SDR CALA2026080318201](https://openairdocs.org/sdr/CALA2026080318201), Aug 1, 2026: Boeing 737924ER. SMOKE DETECTOR. FALSE ACTIVATION. LAV E SMOKE DETECTOR ALARM ACTIVE. AFT RT LAV E SMOKE DETECTOR HORN WAS NOT ON UPON ARRIVAL. PERFORMED LAV SMOKE DETECTO (N37471)
- [SDR CALA2026073018103](https://openairdocs.org/sdr/CALA2026073018103), Jul 29, 2026: Boeing 737924ER. SMOKE DETECTOR. NO TEST. AFT CARGO FIRE TEST LIGHT DOES NOT COME ON. AFT CARGO LOOP A LOOP INOPERATIVE. B LOOP OPS CHECKED GOOD. REMOVED AFT CARG (N63820)
- [SDR R61A2026072600212](https://openairdocs.org/sdr/R61A2026072600212), Jul 26, 2026: Emb ERJ170200LR. MAU. FAULTED. CARGO FWD SMOKE WILL NOT EXTINGUISH MESSAGE. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. R&R MAU 1 CUSTOM I/O SLOT 13/1 (N222JQ)
- [SDR ABXA20260726336](https://openairdocs.org/sdr/ABXA20260726336), Jul 26, 2026: Boeing 767316. CIRCUIT BREAKER. TRIPPED. FIRE DET. CARGO DC CB OPEN. RESET FIRE DET CARGO DC CB, PERFORMED AFLOT DET. TEST NO ISSUES NOTED, SYSTEM OK AT THIS TIM (N227CY)
- [SDR AALA202607274396](https://openairdocs.org/sdr/AALA202607274396), Jul 22, 2026: Airbus A321231. SMOKE DETECTOR. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: RED ECAM SMOKE - LAVATORY SMOKE APPEARED FOR APPROXIMATELY 5 SECONDS IN DESCENT PASSING FL280 (N904AA)
- [SDR DALA2026071704224](https://openairdocs.org/sdr/DALA2026071704224), Jul 16, 2026: Airbus A330223. SMOKE WARNING. FALSE ACTIVATION. DURING CRUISE, EXPERIENCED A SMOKE CABIN REST SMOKE EVENT CONCERNING F/A PORTION OF CREW REST FACILITY. T/S PER TSM 26-1 (N852NW)
- [SDR ASAA2026071665807](https://openairdocs.org/sdr/ASAA2026071665807), Jul 16, 2026: Boeing 7879. SMOKE DETECTOR. FAULTED. DETECTOR 7L, FWD CARGO STATUS MSG. GROUNDED - YES. IAW FIM 26-10-F6-67A-421A-A, CYCLED C/B FOR CARGO SMOKE DETECTOR, GOR (N784HA)
- [SDR CALA2026071317728](https://openairdocs.org/sdr/CALA2026071317728), Jul 11, 2026: Boeing 7379. FIRE DETECTOR. FALSE ACTIVATION. LAV T SMOKE ALAM WENTOFF FAS SAY NO INDICATION ON PRAM. NO SMOKE /FUMES/VAP NOTICEABLE. CW LAV SMOKE DETECTION TEST PER  (N17461)
- [SDR ABXA20260711315](https://openairdocs.org/sdr/ABXA20260711315), Jul 11, 2026: Boeing 7673P6. TEST PANEL. MALFUNCTIONED. F/U-CHECK CONNECTORS & WIRING AT FIRE-OVHT TEST PANEL FOR HISTORY OF FIRE/OVHT SYS MESSAGES. IF NFF, REPLACE FIRE/OVHT T (N764CK)
- [SDR ABXA20260710314](https://openairdocs.org/sdr/ABXA20260710314), Jul 10, 2026: Boeing 7673P6. WARNING MESSAGE. FALSE ACTIVATION. "FIRE/OVHT SYS" EICAS CAUTION MESSAGE AFTER ENGINE NR 1 STARTED. ACCOMPLISHED QRH PROCEDURE AND MESSAGE DISAPPEARED PERF (N764CK)
- [SDR ABXA20260708311](https://openairdocs.org/sdr/ABXA20260708311), Jul 8, 2026: Boeing 767300. FIRE LOOP. FAULT MESSAGE. DURING MTC PRE-FLIGHT, RT ENGINE FIRE LP 1 MSG. DEFERRED R ENG FIRE LP 1 IAW MEL 26-11-1-1. PLACARD INSTALLED NO MAINT P (N496MM)
- [SDR AALA202607103032](https://openairdocs.org/sdr/AALA202607103032), Jul 7, 2026: Airbus A321211. CONTROL UNIT. FALSE INDICATION. AIRCRAFT WAS NOT GROUNDED: SMOKE-LAVATORY SMOKE ECAM IN FLIGHT. NO SMOKE OBSERVED FROM FLIGHT ATTENDANTS. MESSAGE WENT O (N165US)
- [SDR ABXA20260707309](https://openairdocs.org/sdr/ABXA20260707309), Jul 7, 2026: Boeing 767232. SMOKE DETECTOR. MALFUNCTIONED. CARGO FIRE SENSOR NUMBER 3A LIGHT IS ON. REMOVED AND REPLACED 3A CARGO SMOKE DETECTOR ASSY IAW B767 AMM 26-14-01. OPS CH (N744AX)
- [SDR ABXA20260627287](https://openairdocs.org/sdr/ABXA20260627287), Jun 27, 2026: Boeing 767300. FIRE LOOP. WARNING MESSAGE. RIGHT ENGINE FIRE LOOP NR 1 ILLUMINATED, CREW DEFERRAL IAW MEL 26-11-1-1. MTX PERFORMED VISUAL INSP AND OPS TEST OF ENGI (N496MM)
- [SDR AALA202606299234](https://openairdocs.org/sdr/AALA202606299234), Jun 25, 2026: Airbus A320232. SMOKE DETECTOR. FALSE ACTIVATION. AIRCRAFT WAS NOT GROUNDED: SMOKE LAVATORY SMOKE ALERTED ON THE ECAM ONCE. THE FLIGHT ATTENDANT STATED THE RIGHT AFT LAVA (N679AW)
- [SDR ABXA20260625285](https://openairdocs.org/sdr/ABXA20260625285), Jun 25, 2026: Boeing 767338. TEST SWITCH. STICKING. DURING INSP/MTC, FIRE/OVERHEAT TEST FOUND SYS FAIL/RESET SWITCH STICKY. REMOVED AND REPLACED FIRE/OVHT TEST PANEL ASSY P (N362CM)
- [SDR CALA2026062517323](https://openairdocs.org/sdr/CALA2026062517323), Jun 24, 2026: Boeing 737924. SMOKE DETECTOR. FALSE ACTIVATION. FLIGHT ATTENDANT CALL LIGHT ILLUMINATED RANDOMLY 3 TIMES THEN FWD LAV SMOKE DETECTOR ALARM SOUNDED FOR APPROXIMATELY 2 S (N37408)

All 7,428: https://openairdocs.org/jasc/2611/reports.md

## Other codes in chapter 26

- [JASC 2600](https://openairdocs.org/jasc/2600): Fire Protection System (300 reports)
- [JASC 2610](https://openairdocs.org/jasc/2610): Detection System (709 reports)
- [JASC 2612](https://openairdocs.org/jasc/2612): Fire Detection (7,458 reports)
- [JASC 2613](https://openairdocs.org/jasc/2613): Overheat Detection (1,796 reports)
- [JASC 2620](https://openairdocs.org/jasc/2620): Extinguishing System (701 reports)
- [JASC 2621](https://openairdocs.org/jasc/2621): Fire Bottle, Fixed (623 reports)
- [JASC 2622](https://openairdocs.org/jasc/2622): Fire Bottle, Portable (354 reports)
- [JASC 2697](https://openairdocs.org/jasc/2697): Fire Protection System Wiring (1,399 reports)

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