# JASC 2162: Cabin Temperature Indicator - Type: JASC system/component code (FAA) - ATA chapter: 21 Air Conditioning - Title in the code table: CABIN TEMPERATURE INDICATOR - Service difficulty reports: 69 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=17 - Page: https://openairdocs.org/jasc/2162 ## What it covers For reports of the indicators, lamps and associated circuitry which indicates the air temperature in the cabin. ## Service difficulty reports (69, newest 50) - [SDR UIEA2022011400027](https://openairdocs.org/sdr/UIEA2022011400027), Jan 13, 2022: Boeing 7673Y0. NONE. NONE. RH PACK HI FLOW INHIBIT .(

T/S FIM 21-51- TASK 875 & W/D 21-51--21

/

RH FLOW CONTROL CARD M864 FAULT&NBSP;< (N1619A) - [SDR UIEA2021092702125](https://openairdocs.org/sdr/UIEA2021092702125), Sep 26, 2021: Boeing 767316. CONNECTOR. NOT SEATED. L PACK TEMP MESSAGE IN FLIGHT. COMPLIED WITH QRH. MSG BLANKED WHEN STBY N SELECTED. TRANSFERRED TO MDDR 154153 IAW MEL 2 (N1381A) - [SDR UIEA2020051901077](https://openairdocs.org/sdr/UIEA2020051901077), May 18, 2020: Boeing 767383. STATUS MESSAGE. FALSE ACTIVATION. CARGO AC TEMP STATUS MSG(

PERFORMED BITE TEST CHECK ZONE TEMPERATURE CONTROLLERS IAW AMM 21-61-03 AND SYSTEM TEST OK.< (N1511A) - [SDR UIEA2020051801071](https://openairdocs.org/sdr/UIEA2020051801071), May 15, 2020: Boeing 767383. STATUS MESSAGE. FALSE ACTIVATION. STATUS MESSAGE CARGO A/C TEMP(

PERFORMED FIM TASK 21-90-16, MESSAGE ERASED. OPS GOOD.

) (N1511A) - [SDR ASAA2020042932689](https://openairdocs.org/sdr/ASAA2020042932689), Apr 27, 2020: Boeing 737990ER. WARNING SYSTEM. FALSE ACTIVATION. CONT CAB ZONE TEMP LIGHT ILLUMINATED. GROUNDED - YES. REL PER MEL 21-21G. FLIGHT DECK PRI TEMP CONTROL INOP. INITIAL EVA (N474AS) - [SDR UIEA2020042700878](https://openairdocs.org/sdr/UIEA2020042700878), Apr 22, 2020: Boeing 767383. STATUS MESSAGE. FALSE ACTIVATION. DURING DECENT STATUS MSG CARGO A/C TEMP MSG REMAINED AFTER ENG SHUTDOWN&NBSP;(

PERFORMED FIM 21-61 -01 NO DEFECT NOTED (N1511A) - [SDR UIEA2020040600683](https://openairdocs.org/sdr/UIEA2020040600683), Apr 3, 2020: Boeing 76731K. WARNING SYSTEM. ACTIVATED. AFT CABIN TEMP DISPLAYED ON EICAS DURING DESCENT(

TRANSFERED TO MDDR 126626 IAW MEL 21-61-01-02, CAT "C", DUE 13APR202 (N1487A) - [SDR ASAA2020030232301](https://openairdocs.org/sdr/ASAA2020030232301), Feb 27, 2020: Airbus A320214. WARNING SYSTEM. ACTIVATED. TEMPERATURE CONTROL MAINTENANCE CLASS 2 MESSAGE ON STATUS PAGE GROUNDED - YES. DEFERRED (N281VA) - [SDR ASAA2019103031197](https://openairdocs.org/sdr/ASAA2019103031197), Oct 30, 2019: Boeing 737890. WARNING SYSTEM. FALSE ACTIVATION. CONT CAB ZONE TEMP LIGHT ILLUMINATED AFTER START EXTINGUISHES WITH MSTR CAUTION RESET. GROUNDED - YES. FLT DECK TEMP CON (N506AS) - [SDR ASAA2019092130758](https://openairdocs.org/sdr/ASAA2019092130758), Sep 21, 2019: Boeing 737890. WARNING SYSTEM. FALSE ACTIVATION. CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED FIM 21-61 TASK 801 NO FAULTS FOUND ON BOTH TEMP (N535AS) - [SDR ASAA2019072830225](https://openairdocs.org/sdr/ASAA2019072830225), Jul 28, 2019: Boeing 737990ER. WARNING SYSTEM. FALSE ACTIVATION. ZONE TEMP LIGHT ON CONT CAB ON RECALL DURING AFTER START CHECKLIST. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE REF (N459AS) - [SDR ASAA2019072630202](https://openairdocs.org/sdr/ASAA2019072630202), Jul 26, 2019: Boeing 737990ER. WARNING SYSTEM. FALSE ACTIVATION. FWD CABIN ZONE TEMP ILLUMINATED ON RECALL. EXTINGUISHED WHEN MASTER CAUTION WAS RESET. GROUNDED - YES. ACCOMPLISHED PACK (N472AS) - [SDR UIEA2019071604767](https://openairdocs.org/sdr/UIEA2019071604767), Jul 17, 2019: Boeing 76731K. WARNING SYSTEM. FALSE ACTIVATION. AFT CABIN TEMP EICAS MESSAGE. (

DURING POWER TRANSFER FROM APU TO GPU, MESSAGE CLEARED. PERFORMED FIM 21-61 FT 915, NO (N1489A) - [SDR UIEA2019070104652](https://openairdocs.org/sdr/UIEA2019070104652), Jun 30, 2019: Boeing 767383. WARNING SYSTEM. FALSE ACTIVATION. FWD CARGO BACKUP EICAS. (

PERFORMED ZONE TEMP CONTROLLER BITE, NO DEFECTS NOTED PER AMM 21-61-03-715-022. SUSPECT FWD (N1511A) - [SDR ASAA2019062829860](https://openairdocs.org/sdr/ASAA2019062829860), Jun 28, 2019: Boeing 737890. WARNING SYSTEM. FALSE ACTIVATION. AFT CAB ZONE TEMP LIGHT ILLUMINATED DURING MASTER CAUTION RECALL. EXTINGUISHED DURING MASTER CAUTION RESET PER QRH 2.22. (N516AS) - [SDR UIEA2019052304279](https://openairdocs.org/sdr/UIEA2019052304279), May 20, 2019: Boeing 76736N. INDICATOR. INOPERATIVE. AFT CABIN COMPARTMENT TEMP DISPLAY INOP (COMPT TEMP INDICATIONS).(

PLACED ON MDDR 111955

LP 1055284 - M2:&NBSP;& (N1013A) - [SDR ASAA2019051929373](https://openairdocs.org/sdr/ASAA2019051929373), May 19, 2019: Boeing 737990ER. WARNING SYSTEM. FALSE ACTIVATION. AFTER ENGINE START AND PRESSING MASTER CAUTION RECALL THE FWD CAB ZONE TEMP LIGHT ILLUMINATED BUT EXTINGUISHED WITH MAST (N464AS) - [SDR UIEA2019050304112](https://openairdocs.org/sdr/UIEA2019050304112), May 2, 2019: Boeing 76738E. WARNING SYSTEM. FALSE ACTIVATION. FLIGHT DECK TEMP EICAS AFTER ENGINE SHUTDOWN(

PERFORMED BITE TEST AND FIM TASK PER 21-64. OPS CHECKED GOOD.

) (N641GT) - [SDR ASAA2019032528771](https://openairdocs.org/sdr/ASAA2019032528771), Mar 25, 2019: Boeing 737890. INDICATOR. ERRATIC. AIR CONDITIONING TEMPERATURE GAUGE INOP - ALL TEMPS READING EXTREMELY LOW - PEGGED TO BOTTOM OF SCALE. GROUNDED - YES. R (N519AS) - [SDR ASAA2019022828392](https://openairdocs.org/sdr/ASAA2019022828392), Feb 28, 2019: Boeing 737890. WARNING SYSTEM. FALSE ACTIVATION. CONT CAB ZONE TEMP ILLUMINATED ON MASTER CAUTION RECALL, ZONE TEMP EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. (N589AS) - [SDR ASAA2019022728391](https://openairdocs.org/sdr/ASAA2019022728391), Feb 27, 2019: Boeing 737890. WARNING SYSTEM. FALSE ACTIVATION. ON RECALL CONT CAB ZONE TEMP LIGHT ILLUMINATED CLEARS ON RESET. GROUNDED - YES. FLIGHT PRIMARY TEMP CONT INOP. PERFORMED (N583AS) - [SDR ASAA2019011227745](https://openairdocs.org/sdr/ASAA2019011227745), Jan 12, 2019: Boeing 737990ER. WARNING SYSTEM. FALSE ACTIVATION. AFTER START ON RECALL THE AFT CAB ZONE TEMP LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED TEMP CONTROLLER BITE CHECK R (N433AS) - [SDR ASAA2019011227746](https://openairdocs.org/sdr/ASAA2019011227746), Jan 12, 2019: Boeing 737890. WARNING SYSTEM. FALSE ACTIVATION. CONT CABIN ZONE TEMP ILLUMINATES ON RECALL LIGHT EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. LEFT AND RIGHT (N570AS) - [SDR UIEA2019011000060](https://openairdocs.org/sdr/UIEA2019011000060), Jan 10, 2019: Boeing 76733A. WARNING SYSTEM. FALSE ACTIVATION. "FLIGHT DECK TEMP" MSG IN FLIGHT FOLLOWED QRH PROCEDURE AND TURNED OFF TRIM AIR VALVE THEN "TRIM AIR" AFT CABIN TEMP AND (N1439A) - [SDR ASAA2019010927725](https://openairdocs.org/sdr/ASAA2019010927725), Jan 9, 2019: Boeing 737890. WARNING SYSTEM. FALSE ACTIVATION. CONT CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL. LIGHT EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. PERFORMED PA (N585AS) - [SDR ASAA2019010927736](https://openairdocs.org/sdr/ASAA2019010927736), Jan 9, 2019: Boeing 737990ER. WARNING SYSTEM. FALSE ACTIVATION. DURING PUSHBACK, RECEIVED ZONE TEMP LIGHT ON CONT CAB LIGHT EXTINGUISHES DURING MASTER CAUTION RESET. GROUNDED - YES. PE (N469AS) - [SDR UIEA2019011000058](https://openairdocs.org/sdr/UIEA2019011000058), Jan 9, 2019: Boeing 76731K. WARNING SYSTEM. FALSE ACTIVATION. FLT DECK TEMP CAUTION MSG(

PERFORMED ZONE TEMP CTL BITE TEST IAW AMM 21-61-03 OPS CK OK.

) (N1489A) - [SDR AALA201810319030](https://openairdocs.org/sdr/AALA201810319030), Oct 28, 2018: Boeing 737823. INDICATOR. FAULTY. AIRCRAFT WAS GROUNDED. CLIMBING THRU 15000 LEFT PACK LIGHT ILLUMINATED. PER QUICK RESPONSE HANDBOOK RESET AND LIGHT EXTI (N902AN) - [SDR UIEA2018102802393](https://openairdocs.org/sdr/UIEA2018102802393), Oct 27, 2018: Boeing 76731A. WARNING SYSTEM. FALSE ACTIVATION. EICAS MSG MID CABIN TEMP QRH PROCEDURE PERFORMED. MID CABIN TEMP MSG SELF ERASED ON GROUND ALL SATISFACTORY AS PER AMM 2 (N662GT) - [SDR ASAA2018102426578](https://openairdocs.org/sdr/ASAA2018102426578), Oct 23, 2018: Boeing 737890. WARNING SYSTEM. FALSE ACTIVATION. ON RECALL CONT CABIN ZONE TEMP LIGHT ILLUMINATED. EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. CABIN TEMP CONTR (N566AS) - [SDR UIEA2018102102309](https://openairdocs.org/sdr/UIEA2018102102309), Oct 21, 2018: Boeing 767375. WARNING SYSTEM. FALSE ACTIVATION. MID CABIN TEMP CAUTION LIGHT DURING CRUISE. FOUND AUX MID TRIM VALVE. PERFORMED AUX ZONE TEMP BITE PER FIM 21-61-FT 804 (N649GT) - [SDR UIEA2018091101941](https://openairdocs.org/sdr/UIEA2018091101941), Sep 10, 2018: Boeing 767316. INDICATOR. INOPERATIVE. AFT CABIN COMPT TEMP INDICATION DISPLAY INOP. REMOVED AND REPLACED COMPARTMENT TEMPERATURE CONTROL INDICATOR IAW AMM 21- (N1381A) - [SDR UIEA2018091001936](https://openairdocs.org/sdr/UIEA2018091001936), Sep 10, 2018: Boeing 767316. INDICATOR. DAMAGED. COMP TEMP INDICATOR ON F/O OVERHEAD PANEL HARD TO READ DUE TO LIGHT DAMAGED. REMOVED AND REPLACED TEMP INDICATOR ON F/O (N1381A) - [SDR ASAA2018082925967](https://openairdocs.org/sdr/ASAA2018082925967), Aug 29, 2018: Boeing 737990ER. INDICATOR. INOPERATIVE. CABIN TAMP GAUGE INDICATES VERY LOW IN ALL SUPPLY DUCT AND PASS CABIN SETTINGS. TEMP CONTROLLER WORKS FINE WITH SELECTOR (N413AS) - [SDR ASAA2017011119358](https://openairdocs.org/sdr/ASAA2017011119358), Jan 11, 2017: Boeing 737990ER. INDICATOR. FAILED. BOTH FWD AND AFT CABIN TEMP GAUGES FOR SUPPLY DUCT AND PACK READINGS ABNORMALLY LOW, 10 DEG C TEMP CONTROLS OPERATED NOR (N413AS) - [SDR ASAA2016090917971](https://openairdocs.org/sdr/ASAA2016090917971), Sep 9, 2016: Boeing 737990ER. WARNING SYSTEM. FALSE ACTIVATION. ON RECALL, MASTER CONTROLLER ILLUMINATED. CONTROLLER CAB ZONE TEMP. ACFT GROUNDED. BITE CHECKED BOTH TEMP CONTROLLERS, R (N457AS) - [SDR UIEA2016062300455](https://openairdocs.org/sdr/UIEA2016062300455), Jun 23, 2016: Boeing 767375. WARNING SYSTEM. ACTIVATED. FLIGHT DECK TEMP EICAS, IN FLIGHT DECK TEMP, INOPERATIVE LIGHT ILLUMINATED MANUAL CONTROL, WORKS OK. PERFORMED ZONE TEMP (N649GT) - [SDR ASAA2016062217121](https://openairdocs.org/sdr/ASAA2016062217121), Jun 22, 2016: Boeing 737990ER. WARNING SYSTEM. FALSE ACTIVATION. ON RECALL GOT CONTROLLER CABIN ZONE TEMP LIGHT. IT EXTINGUISHED WHEN MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED BITE (N448AS) - [SDR ASAA2016061917078](https://openairdocs.org/sdr/ASAA2016061917078), Jun 19, 2016: Boeing 737990ER. WARNING SYSTEM. FALSE ACTIVATION. CONTROLLER CAB ZONE TEMP LIGHT ILLUMINATED DURING MASTER CAUTION RECALL AT TOP OF DESCENT. ACFT GROUNDED. ACCOMPLISHED B (N495AS) - [SDR ASAA2016061417036](https://openairdocs.org/sdr/ASAA2016061417036), Jun 14, 2016: Boeing 737890. WARNING SYSTEM. FALSE ACTIVATION. CONTROLLER CABIN ZONE TEMP LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. RAN RTS CHECK OF ZONE TEMP CONTROLLER. RESET FAUL (N586AS) - [SDR UIEA2016050400275](https://openairdocs.org/sdr/UIEA2016050400275), May 4, 2016: Boeing 7673S1. WARNING SYSTEM. FALSE ACTIVATION. FORWARD CABIN TEMP EICAS MSG. QRH PROCEDURE COMPLIED WITH. FWD CABIN TEMP EICAS MSG NOT PRESENT ON GND. NO FAULTS NOTED (N640GT) - [SDR SWIA201438461](https://openairdocs.org/sdr/SWIA201438461), Jun 27, 2014: Cndair CL6002B19. DETECTOR. FAILED. DISPLAY COOL CAUTION MESSAGE IN FLIGHT. MESSAGE DID NOT CLEAR IN F/A OR STBY. REMOVED DISPLAY COOL LOW FLOW DETECTOR AND (N446SW) - [SDR CALA2013112593216](https://openairdocs.org/sdr/CALA2013112593216), Nov 24, 2013: Airbus A320232. INDICATION SYS. INOPERATIVE. FORWARD ZONE TEMP INDICATION INOPERATIVE ON CRUISE SYSTEM ECAM PAGE. (N415UA) - [SDR UIEA2012070200293](https://openairdocs.org/sdr/UIEA2012070200293), Jul 1, 2012: Boeing 7673S1. SENSOR. MALFUNCTIONED. LEFT PACK INOPERATIVE IN AUTO, FOLLOWED QRH, WORKS OK IN STANDBY. R & R COMPRESSOR OVERHEAT SENSOR OUTLET IAW AMM 21-56- (N640GT) - [SDR MYWA120054](https://openairdocs.org/sdr/MYWA120054), May 1, 2012: Boeing 7378Q8. WARNING SYSTEM. FALSE ACTIVATION. ETOPS SIGNIFICANT SYSTEM: FLT DECK ZONE TEMP LIGHT COMES ON ON RECALL. RESETS WITH MASTER CAUTION. (N742MA) - [SDR MYWA120053](https://openairdocs.org/sdr/MYWA120053), Apr 29, 2012: Boeing 7378Q8. WARNING SYSTEM. ACTIVATED. ETOPS SIGNIFICANT SYSTEM: CONTROL CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL DURING DESCENT. PERFORMED ZONE TEMP CONTROL (N742MA) - [SDR MYWA120052](https://openairdocs.org/sdr/MYWA120052), Apr 25, 2012: Boeing 7378Q8. WARNING SYSTEM. FALSE ACTIVATION. ETOPS SIGNIFICANT SYSTEM: CONT CAB ZONE TEMP LIGHT ILLUMINATED DURING RECALL ON DESCENT. ACCOMPLISHED BITE TEST ON BOTH (N742MA) - [SDR UALA2012033002001](https://openairdocs.org/sdr/UALA2012033002001), Mar 30, 2012: Boeing 777222. SHUTOFF VALVE. WARNING LIGHT. TRIM AIR PRORITY SHUTOFF VALVE RT STATUS. REPLACED OPS CHECKED GOOD AND PASS MAP TEST. (N219UA) - [SDR MYWA120034](https://openairdocs.org/sdr/MYWA120034), Mar 15, 2012: Boeing 7378Q8. WARNING SYSTEM. INTERMITTENT. ETOPS SIGNIFICANT SYSTEM: CONT CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL. PERFORMED BITE TEST AND DETERMINED FAULT INTER (N738MA) - [SDR MYWA120030](https://openairdocs.org/sdr/MYWA120030), Mar 3, 2012: Boeing 73781Q. WARNING SYSTEM. INTERMITTENT. ETOPS SIGNIFICANT SYSTEM: ON RECALL ALL THREE ZONE TEMP LTS ILLUMINATED. PERFORMED PACK/ZONE TEMP CONT BITE TEST IAW AMM (N734MA) All 69: https://openairdocs.org/jasc/2162/reports.md ## Other codes in chapter 21 - [JASC 2100](https://openairdocs.org/jasc/2100): Air Conditioning System (1,354 reports) - [JASC 2110](https://openairdocs.org/jasc/2110): Cabin Compressor System (252 reports) - [JASC 2120](https://openairdocs.org/jasc/2120): Air Distribution System (15,360 reports) - [JASC 2121](https://openairdocs.org/jasc/2121): Air Distribution Fan (4,375 reports) - [JASC 2130](https://openairdocs.org/jasc/2130): Cabin Pressure Control System (3,454 reports) - [JASC 2131](https://openairdocs.org/jasc/2131): Cabin Pressure Controller (2,041 reports) - [JASC 2132](https://openairdocs.org/jasc/2132): Cabin Pressure Indicator (94 reports) - [JASC 2133](https://openairdocs.org/jasc/2133): Pressure Regulator/Outflow Valve (1,711 reports) - [JASC 2134](https://openairdocs.org/jasc/2134): Cabin Pressure Sensor (40 reports) - [JASC 2140](https://openairdocs.org/jasc/2140): Heating System (1,020 reports) - [JASC 2150](https://openairdocs.org/jasc/2150): Cabin Cooling System (12,384 reports) - [JASC 2160](https://openairdocs.org/jasc/2160): Cabin Temperature Control System (3,040 reports) - [JASC 2161](https://openairdocs.org/jasc/2161): Cabin Temperature Controller (308 reports) - [JASC 2163](https://openairdocs.org/jasc/2163): Cabin Temperature Sensor (154 reports) - [JASC 2170](https://openairdocs.org/jasc/2170): Humidity Control System (1,332 reports) - [JASC 2197](https://openairdocs.org/jasc/2197): Air Conditioning System Wiring (497 reports) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.