JASC 2160

Service difficulty reports · 3,040

Reports filed under 2160 · Cabin Temperature Control System, newest first.

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE jasc_code = '2160'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR UIEA2021011100035Unknown · fault messageCARGO A/C TEMP STATUS MESSAGE. PERFORMED OPERATIONS CHECK OF FWD CARGO A/C FAULT. REMOVED PER AMM 21-28-00. OPERATIONS CHECK GOOD. NO FAULTS NOTED AT THIS TIME.Jan 8, 2021 · N1511A · Boeing 767383SDR ASAA2021010833846Modulating Valve · faultedRIGHT PACK LIGHT ILLUMINATES ON RECALL. GROUNDED-YES. RT ZONE TEMP CONTROLLER LOGGED TCV FAULT. REMOVED AND REPLACED RT PACK TEMP CONTROL VALVE, REF B737-900 AMM 21-51-10. OPERATIONS CHECK GOOD. LEAK CHECK GOOD.Jan 8, 2021 · N491AS · Boeing 737990ERSDR ASAA2021010733844Modulating Valve · faultedON RECALL RECEIVED CONT CABIN ZONE TEMP LIGHT RESETS WITH MASTER CAUTION RESET. GROUNDED-YES. VERIFIED FAULT LIGHT ON RECALL. PERFORMED PZTC BITE, REF B737-800 AMM 21-61-00. PZTC2 FAULTED FLIGHT DECK TRIM VALVE ON BIT AND PREV FLIGHT, RESET ON VERIFY. AS Jan 7, 2021 · N577AS · Boeing 737890SDR ASAA2021010533825Warning Light · false activationPILOTS REPORT ZONE TEMP LIGHT, CLEARS ON RECALL. GROUNDED-YES. NR 2 CONTROLLER SHOWS FLT DECK TRIM VALVE FAULT. CHECKED AND RELEASED, PER MEL 21-21G PER B737-900 FIM 21-62 TASK 842 AND 832. INITIAL EVALUATION: PACK TEMP CONT BITE SHOWS NO FAULTS. OPERATEJan 5, 2021 · N435AS · Boeing 737990ERSDR FDEA202101050009Controller · failedUPON STARTING SECOND ENGINE GOT A "AFT CABIN TEMP", FWD CABIN TEMP" FLT DECK TEMP" EICAS WARNING MESSAGES. ACCOMPLISHED CHECKLIST/SHUT DOWN. FOUND ZONE TEMP CONTROLLER (GARRETT) PN 625934-6, SERIAL 071C-126 FAULTED. REMOVED AND REPLACED ZONE TEMP. CONTROLLJan 5, 2021 · N791FD · Boeing 757222SDR ASAA2021010433820Modulating Valve · failedCONT CAB ZONE TEMP LIGHT ILLUMINATES ON RECALL. GROUNDED-YES. ACCOMPLISHED PACK/ZONE TEMPERATURE CONTROLLER BITE, PER B737-900 AMM 21-61-00-700-806-802, FLIGHT DECK TRIM VALVE FAILED. REMOVED AND INSTALLED NEW CONTROL CABIN TRIM VALVE, PER AMM 21-61-21/401.Jan 4, 2021 · N433AS · Boeing 737990ERSDR AALA202101059011Control Valve · inoperativeAIRCRAFT WAS GROUNDED. UNABLE TO CONTROL COCKPIT TEMPERATURE, SUPPLY DUCT TEMPERATURE STAYED AT 160F WITH CONTROL OFF. FLIGHT RETURNED TO FIELD, NO EMERGENCY DECLARED. REPLACED LT TEMPERATURE CONTROL VALVE, IAW AMM 21-51-10. OPERATIONS CHECK GOOD.Jan 3, 2021 · N961NN · Boeing 737823SDR ASAA2021010333809Warning Light · false activationZONE TEMP LIGHT ON CONTROL CABIN ILLUMINATED ON RECALL. GROUNDED-YES. VERIFIED NO CURRENT FAULT. HISTORY SHOWS FLT DECK TRIM VALVE FAULT CLEARED. CW B737-800 FIM 21-62 TASK 833 AND 21-61 TASK 861 FOR AUTO TEMP CONTROL. NO CONT CAB ZONE TEMP ON RECALL. INJan 3, 2021 · N585AS · Boeing 737890SDR ASAA2021010133808Modulating Valve · faultyAFTER PUSHBACK ZONE TEMP ILLUMINATED ON CONT CAB EXTINGUISH DURING RESET. GROUNDED-YES. PERFORMED PACK TEMP CONTROLLER BITE, REF B737-900 FIM 21-62 TASK 801 FOUND NR 2 PTC FAULT "FLT DECK TRIM VALVE". REMOVED AND REPLACED THE CONTROL CABIN TRIM AIR VALVE, RJan 1, 2021 · N419AS · Boeing 737990ERSDR UIEA2020123102636Warning Message · false activationSTATUS MESSAGE CARGO A/C TEMP. PERFORM OPERATION CHECK OF FWD CARGO AIR CONDITIONING SYSTEM NORMAL, REF AMM 21-28-00. NO FAULTS NOTED. PLEASE CONTINUE TO MONITOR.Dec 31, 2020 · N1511A · Boeing 767383SDR ASAA2020123033791Actuator · inoperativeNR 2 PACK LIGHT ON MASTER CAUTION CHECK, EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED-YES. CHANGED RAM AIR INLET ACTUATOR DUE TO HISTORY, FOUND MODULATION PANEL OUT OF ITS TRACKS. RE-INSTALLED CORRECTLY OPERATIONS CHECK NORMAL, REF B737-800 AMM 21-51-21.Dec 30, 2020 · N516AS · Boeing 737890SDR ASAA2020122933780Modulating Valve · faultedCONT CABIN ZONE TEMP ILLUMINATES WITH MASTER CAUTION RECALL EXTINGUISHES WHEN RESET. GROUNDED-YES. PERFORMED CABIN TEMP CONTROLLER BITE CHECK, FOUND FLT DECK TRIM VALVE FAULT. REMOVED AND REPLACED CONTROL CABIN TRIM MODULATING VALVE, AS REQUIRED, OPERATIONSDec 29, 2020 · N596AS · Boeing 737890SDR ASAA2020122833779Warning Message · false activationZONE TEMP ILLUMINATED FOR CONT CAB, IT WENT OUT DURING MASTER CAUTION RESET. GROUNDED-YES. INSPECTED AND FOUND NR 2 PZTC WITH "FLT DECK TRIM VLV " FAULT LOGGED 1 TIME. ACCOMPLISHED PZTC BITE, REF B737-800 AMM 21-61-00. FAULT ABLE TO RESET. GROUND RAN PACKDec 28, 2020 · N564AS · Boeing 737890SDR ASAA2020122733782Control Valve · faultyWHEN RECALL IS PUSHED THE RIGHT PACK LIGHT ILLUMINATES. IT EXTINGUISHES WHEN RESET. GROUNDED-YES. TASK CARD COMPLIED WITH PERFORMED PACK TEMPERATURE CONTROL BITE PROCEDURE, REF B737-800 FIM 21-62 TASK 801. BITE TEST FAULTED AT ZONE TRIM VALVE. REMOVED ANDDec 27, 2020 · N516AS · Boeing 737890SDR ASAA2020122533745Warning Light · false activationZONE TEMP ON CAB ILLUMINATES ON RECALL. GROUNDED-YES. VERIFIED LIGHT ON RECALL. PERFORMED B737-900 FIM 21-62 TASK 801. NO FAULTS ON PZTC 1. PZTC 2 FAULTED FLIGHT DECK TRIM VALVE ON BIT AND PREV FLIGHT, FAULT RESET ON VERIFY. PERFORMED TEST AGAIN, RIGHT PDec 25, 2020 · N419AS · Boeing 737990ERSDR ASAA2020122433744Valve · inoperativeZONE TEMP (CONT CAB) ILLUMINATED ON RECALL. EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED-YES. CONFIRMED FAULT, CONT CAB ZONE LIGHT ILLUMINATES ON RECALL. NR 2 PACK/ZONE TEMP CONTROLLER SHOWS HARD FAIL FLIGHT DECK TCV (V143). REMOVED & REPLACED TCV, RDec 24, 2020 · N462AS · Boeing 737990ERSDR UIEA2020122402613Valve · malfunctionedFWD CABIN TEMP EICAS ILLUMINATED. ITEM TRANSFERRED TO MDDR 139966, PER MEL 21-61-01-02, CAT C, DUE 02JAN21, MCC NOTIFIED. REMOVED AND REPLACED FWD TRIM VALVE, IAW B767 AMM 21-61-07. OPERATIONS CHECKS GOOD AT THIS TIME.Dec 23, 2020 · N1373A · Boeing 76731KSDR ASAA2020122233734Modulating Valve · failedON RECALL OF MASTER CAUTION SYSTEM, ZONE TEMP LIGHT ILLUMINATED ON CONT CAB. EXTINGUISHED DURING MASTER CAUTION RECALL. GROUNDED-YES. PERFORMED NR 2 PZTC BITE, REF B737-800 AMM 21-61-00. FOUND FLT DECK TRIM VALVE FAIL IN BIT, PREV FLT AND VERIFY (MULTIPLE ADec 22, 2020 · N508AS · Boeing 737890SDR ASAA2020121933735Warning Light · false activationCONT CAB ZONE TEMP LIGHT ON RECALL. EXTINGUISHES WHEN MASTER CAUTION PRESSED. GROUNDED-YES. INITIAL EVALUATION, NO LIGHT ON MASTER RECALL. PERFORMED B737-800 FIM 21-62 TASK 801. BOTH PZTC'S SHOW GREEN ON ALL 3 STAGES ON BITE ON 1ST TRY. CLEANED CONT CAB Dec 19, 2020 · N537AS · Boeing 737890SDR ASAA2020121933711Warning Message · false activationFLT DECK CONT CAB LT ON RECALL. GROUNDED-YES. RIGHT PZTC BITE PER B737-900 FIM 21-62 TASK 801 SHOWED FAULT FOR FLIGHT DECK TEMP CONTROL VALVE, BUT VERIFY TEST PASSED WITH NO FAULTS. NO FAULTS ON LEFT PZTC. FOUND CONTROL CABIN TEMP SENSOR FILTER CLOGGED WITDec 19, 2020 · N483AS · Boeing 737990ERSDR UIEA2020122102603Status Message · false activationCARGO A/C TEMP STATUS MESSAGE. PERFORMED AUX ZONE TEMP CNT BITE, NO FAULT FOUND. CLEARED STATUS MESSAGE IAW 21-61-12.Dec 18, 2020 · N1399A · Boeing 767306SDR UIEA2020122102606Controller · malfunctionedFWD CABIN TEMP CONTROLLER INOPERABLE. CABIN COMPARTMENT TEMP CONTROL SYSTEMS, PASSENGERS, -200/300/-400. PERFORMED BITE CHECK ON CABIN TEMP CONTROLLER, RESET CB INOPERABLE, CLEARED. OPERATIONS CHECK GOOD, PER 767 FIM 31-61-FT 803.Dec 18, 2020 · N641GT · Boeing 76738ESDR ASAA2020121633704Warning Message · false activationCONT CAB-ZONE TEMP LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED-YES. PER B737-800 FIM 21-62 TASK 842 PZTC NR 2 SHOWED RED LIGHT FOR FLIGHT DECK TRIM VALVE. AFTER RESET PERFORMED BITE TEST ON PZTC NR 1 AND 2, NO FAULTS NOTEDDec 16, 2020 · N538AS · Boeing 737890SDR ASAA2020121633700Valve · faultedCONTROL CABIN ZONE TEMP LIGHT ILLUMINATED ON RECALL DURING AFTER START CHECK. ACCOMPLISHED QRH FOR ZONE TEMP, LIGHT REMAINED ILLUMINATED ON RECALL. GROUNDED-YES. PERFORMED BITE TEST ON BITE BOX NR 2. FOUND FLT DECK TRIM VALVE FAULT. FAULT CLEARED AFTER PEDec 16, 2020 · N479AS · Boeing 737990ERSDR UIEA2020121702592Status Message · false activationCARGO A/C TEMP STATUS. PERFORMED OPERATIONS CHECK, PER AMM 26-23-00. OPERATIONS CHECK GOOD.Dec 16, 2020 · N1399A · Boeing 767306SDR UIEA2020121702593Controller · malfunctionedFWD CABIN TEMP EICAS MESSAGE DISPLAYED AT GATE. CABIN COMPT TEMP CONTROL SYSTEM ALL CARGO CONFIGURATION. TRANSFERRED TO MDDR 139627, IAW MEL 21-61-01-02, CAT C. 16DEC20-LG PG 1188070 ITEM 5-CVG-REF. MDDR 139627. REMOVED AND REPLACED ZONAL TEMP CONTROLLER,Dec 16, 2020 · N1487A · Boeing 76731KSDR UIEA2020121602587Status Message · false activationCARGO A/C TEMP STATUS MESSAGE, REF B767-300 FIM 21-28 FAULT TASK 809. PERFORMED BITE ON AUX ZONE TEMP CONTROLLER, NO FAULTS NOTED. PERFORMED FWD CARGO A/C SYSTEM TEST. OPERATIONS CHECK GOOD, IAW B767-300 AMM 21-28-00.Dec 15, 2020 · N1511A · Boeing 767383SDR UIEA2020121502577Controller · malfunctionedFWD CABIN TEMP EICAS MESSAGE. FWD CABIN TEMP CONTROLLER INOPERABLE LIGHT ON, IAW MEL 21-61-01-02 CAT C DUE 25DEC20. TRANSFERRED TO MDDR 139550 PLACED ON MEL. PLACARDS INSTALLED. 15DEC20-LG PG 1188066-ITEM 3-PDX-PERFORMED ZONE TEMP CONTROLLER BITE, IAW FIM Dec 15, 2020 · N1487A · Boeing 76731KSDR ASAA2020121433701Warning Message · false activationCONT CAB "ZONE TEMP" ON MASTER CAUTION RECALL. RESETS WITH MASTER CAUTION. GROUNDED-YES. PERFORMED RT PZTC BITE AND FOUND FLT DECK TRIM VALVE FAULT ON BITE. NO FAULTS IN PREVIOUS FLIGHTS OR IN VERIFY. PERFORMED BITE/VERIFY TEST NUMEROUS TIMES LISTENING ANDec 14, 2020 · N593AS · Boeing 737890SDR ASAA2020121333689Valve · faultedZONE TEMP LIGHT ON RECALL ON AFTER START CHECK. RESET W/MASTER CAUTION. GROUNDED-YES. VERIFIED DISCREPANCY. PERFORMED PZTC BITE, REF B737-900 AMM 21-61-00. FOUND "FLT DECK TRIM VALVE FAULTS" ON NR 2 PZTC. RESET FAULT. GROUND RAN BOTH PACKS, NO FAULTS LODec 13, 2020 · N479AS · Boeing 737990ERSDR ASAA2020121233669Modulating Valve · faultedCONT CAB ZONE TEMP LIGHT ILLUMINATED UPON MASTER CAUTION RECALL. GROUNDED-YES. PERFORMED PACK/ZONE TEMPERATURE CONTROL BITE TEST, REF B737-800 AMM 21-61-00-70-806-002. VERIFIED FLIGHT DECK TRIM VALVE FAULT, PER B737-800 FIM 21-62 TASK 834. REPLACED FWD CABDec 12, 2020 · N514AS · Boeing 737890SDR UIEA2020121102547Controller · malfunctionedSTATUS CARGO A/C TEMP ILLUMINATED ON GROUND AFTER BLOCK OUT. TRANSFERRED TO DMI NR 139302, PER MEL 21-28-01. CAT "D", DUE DATE 09APR21. TROUBLESHOT CARGO A/C TEMP FAULT, IAW FIM 21-28 FT 809. REMOVED AND REPLACED FWD CARGO TRIM MODULATING VALVE V385, IAW MDec 10, 2020 · N1511A · Boeing 767383SDR ASAA2020121033668Modulating Valve · faultedON RECALL CONT CAB ZONE TEMP LIGHT COMES ON. GROUNDED-YES. REPLACED ZONE TRIM AIR MODULATING VALVE, REF B737-800 AMM 21-61-21-400-801. OPERATIONS NORMAL. CLEARED FAULT, REF AMM 21-61-00-700-806-002.Dec 10, 2020 · N584AS · Boeing 737890SDR P5CA2020121000393Heater · malfunctionedMAIN DECK FORWARD CARGO HEAT RANGE WILL ONLY INDICATE/CONTROL TEMPS BETWEEN 22C-24C. PERFORMED BITE CHECK AND RESET OF ALL TEMP CONTROLLERS. OPERATIONS CHECK OK, PER AMM 21-61-00/501.Dec 9, 2020 · N644GT · Boeing 7673JHFSDR JRUR202012090014Control Rod · brokenNO HEAT FLOW INTO THE CABIN WHEN IN FLIGHT. FOUND THAT WELD THAT ATTACHED THE CONTROL ROD TO THE VALVE PLATE HINGE CRACKED & BROKEN CAUSING THE VALVE PLATE TO NOT FUNCTION AS DESIGNED TO OPEN OR CLOSE ALLOWING HOT AIR FROM ENTERING THE CABIN.Dec 9, 2020 · N12HP · Cessna 182TSDR UIEA2020120902542Warning Message · false activationSTATUS CARGO A/C TEMP. PERFORMED BITE ON AUX ZONE TEMP CONTROLLER. NO FAULTS NOTED, IAW B767-300 FIM 21-28 FAULT TASK 806. PERFORMED FWD CARGO A/C SYS TEST. OPERATIONS CHECK GOOD, IAW B767-300 AMM 21-28-00.Dec 8, 2020 · N1511A · Boeing 767383SDR UIEA2020120802537Controller · faultedFWD CARGO A/C EICAS MESSAGE, FORWARD CARGO AIR CONDITIONING SYSTEM. TRANSFERRED TO DMI 139140, IAW MEL 21-28-01 CAT D, DUE DATE 04JUN21. REMOVED AND REPLACED THE AUX ZONE TEMP CONTROLLER ASSEMBLY, IAW AMM 21-61-03. OPERATIONS TEST GOOD. THIS CLEARS DMI NR Dec 6, 2020 · N1511A · Boeing 767383SDR ASAA2020120533649Warning Light · false activationZONE TEMP LIGHT ON AFTER ENGINE START ON RECALL-LIGHT RESETS. GROUNDED-YES. PERFORMED BITE CHECK, PER B737-800 AMM 21-61-00. FOUND FLIGHT DECK TCV FAULT, AND RESET. PERFORMED BITE ALL PASS GO. A/C GOOD FOR SERVICE.Dec 5, 2020 · N514AS · Boeing 737890SDR UIEA2020120702532Controller · malfunctionedON CLIMB OUT, EICAS CAUTION "FWD CARGO BACKUP" ILLUMINATED. T/S FIM 21-28-809, FOUND AUX TEMP CONTROL UNIT TO BE AT FAULT. REMOVED AND REPLACED UNIT, IAW AMM 21-61-03. OPERATIONS GOOD.Dec 4, 2020 · N1511A · Boeing 767383SDR I5PA2020120488801Selector · faultyDISCREPANCY: "FWD CABIN TEMP" EICAS MESSAGE. CORRECTIVE ACTION: REMOVED AND REPLACED FWD CABIN TEMP SELECTOR, IAW AMM 21-61-04. OPERATIONS CHECK OK. ZONE TEMP CONTROLLER BITE, NO FAULT NOTED.Dec 4, 2020 · N888LT · Boeing 757230SDR ASAA2020120433648Warning Message · false activationAFTER ENGINE START THE CONT CAB ZONE TEMP LIGHT ILLUMINATED DURING MASTER CAUTION RECALL. EXTINGUISHED AFTER PUSHING MASTER CAUTION WHICH WAS ILLUMINATED. GROUNDED-YES. TROUBLESHOT PER B737-800 FIM 21-62 TASK 842. PACK TEMP CONTROL 2 SHOWS FLIGHT DECK TRIMDec 4, 2020 · N566AS · Boeing 737890SDR ASAA2020120433647Warning Message · false activationON RECALL "CONT CAB ZONE TEMP" MASTER CAUTION. GROUNDED-YES. PER B737-800 FIM 21-62 TASK 842 PACK TEMP CONTROL 2 BITE SHOWS FLIGHT DECK TRIM VALVE FAULT, VERIFY PASSES INITIAL EVALUATION. AFTER RESET, LT AC PACK OPERATES NORMALLY, NO FAULT SET.Dec 4, 2020 · N592AS · Boeing 737890SDR UIEA2020120302507Switch · malfunctionedCARGO A/C TEMP STATUS MESSAGE. TRANSFERRED TO MDDR 138786, IAW MEL 21-28-01, CAT D. REMOVED AND REPLACED OVERTEMP SWITCH S793, IAW M/M 21-61-01. OPERATIONS CHECK NORMAL, IAW M/M 21-61-00. THIS CLEARS DMI 138786, NO DDG PROCEDURE, PLACARDS REMOVED, MCC NOTIDec 1, 2020 · N1511A · Boeing 767383SDR ASAA2020120133625Valve · faultedAFTER PUSHBACK/ENGINE START CONT CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL, EXTINGUISHED UPON MASTER CAUTION RESET. GROUNDED-YES. VERIFIED DISCREPANCY, PERFORMED BOTH TPC BITE B737-900 FIM 21-62 TASK 801. FOUND ON NR 2 PZTC FLT DECK TRIM VALVE FAULT. ABLE Dec 1, 2020 · N478AS · Boeing 737990ERSDR ASAA2020120133624Warning Message · false activationAFTER START CONT CAB ZONE TEMP ILLUMINATED ON RECALL. EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED-YES. RIGHT PACK/ZONE TEMP CONTROLLER SHOWS FLIGHT DECK TRIM VALVE IN PREVIOUS FLIGHT. ACCOMPLISHED B737-900 FIM 21-62 TASK 832 CONTROL CABIN TRIM VALVE FDec 1, 2020 · N472AS · Boeing 737990ERSDR P5CA2020120100389A/C Pack · malfunctionedITEM NR 3 THOUGHOUT FLIGHT, THE FLIGHT DECK TEMP SELECTOR HAD TO BE POSITIONED AT A COOLER SETTING TO MAINTAIN TEMP AT AROUND 20 DEG C. LAST HOUR OF FLT, TEMP SELECTOR WAS AT ALMOST FULL COLD TO MAINTAIN 20 DEG C. RECYCLED PACK TEMP CONT RELATED C/BS. PACKSNov 30, 2020 · N644GT · Boeing 7673JHFSDR ASAA2020113033620Modulating Valve · faultedAFT CAB ZONE TEMP LIGHT ON MASTER CAUTION RECALL. GROUNDED-YES. PERFORMED B737-900 FIM 21-62 TSK 801, FOUND AFT ZONE TRIM FAULT. PERFORMED FIM 21-62 TSK 835. REPLACED TRIM AIR MODULATING VALVE (AFT PAX COMPARTMENT), PER B737-900 AMM 21-61-21. LEAK AND OPENov 30, 2020 · N471AS · Boeing 737990ERSDR UIEA2020113002481Indicator · inaccurateFLIGHT DECK TEMP VALVE INDICATES MAX COLD NO MATTER SELECTION. OPERATIONS CHECKED F/D VALVE POSITION INDICATOR 21-64-1. OPERATIONS CHECKS GOOD.Nov 29, 2020 · N1997A · Boeing 76733ASDR ASAA2020112933608Control Valve · faultedCONT CAB ZONE TEMP LIGHT ILLUMINATED. LIGHT TURNS OFF AFTER MASTER CAUTION RESET. GROUNDED-YES. BITE CHECKED NR 2 ZTC. FAULTS CONT CABIN TRIM VALVE, REF B737-800 FIM 21-62 TASK 832. PERFORMED VERIFY TEST W/NO DEFECTS NOTED. FAULT RESETS. ETOPS GROUND VENov 29, 2020 · N557AS · Boeing 737890SDR ASAA2020112933607Valve · faultedAFT CABIN ZONE TEMP ON RECALL. GROUNDED-YES. PERFORMED B737-900 FIM 21-62 TASK 801. FOUND AFT ZONE TRIM VALVE FAULT. PERFORMED FIM 21-62 TASK 835 AND AFT CABIN TRIM AIR VALVE FAULT RESET. NO FURTHER ACTION NECESSARY.Nov 29, 2020 · N471AS · Boeing 737990ER
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