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 ASAA2021091335937Modulating Valve · faultedDURING T/C NG-21EA-23228-1 FOUND ZONE TRIM VALVE FAULT ON ZONE TEMP CONT 1. GROUNDED - YES. REF B737-900 FIM 21-62 TASK 835 FOUND AFT CABIN TRIM AIR MODULATING VALVE TO BE BAD. REMOVED AND REPLACED AFT CABIN TRIM AIR MODULATING VALVE REF B737-900 AMM 21-61-21.Sep 13, 2021 · N409AS · Boeing 737990ERSDR DALA2021091305412Valve · faultedSHIP 3240 ABORTED TAKEOFF FOR ECAM MSG "COND TRIM AIR SYS FAULT" SPEED 60KTS. CORRECTIVE ACTION: R/R CKPT TRIM AIR VLV IAW AMM 2-63. TRIM AIR SYSTEM OPS CHECKS NORMAL PER A320 AMM 21-63. (7910108)Sep 13, 2021 · N340NW · Airbus A320212SDR ASAA2021091035936Control Valve · inoperativeLEFT PACK LIGHT ILLUMINATES ON RECALL. PRIMARY CONTROLLER INOP. GROUNDED - YES. LH PACK TEMPERATURE CONTROL BITE TEST CALLS OUT LH TEMPERATURE CONTROL VALVE. REMOVED AND REPLACED LH TEMPERATURE CONTROL VALVE IAW B737-900 AMM 21-51-10-000-801 AND AMM 21-51-10-4Sep 10, 2021 · N486AS · Boeing 737990ERSDR UIEA2021090131996Warning Message · false activationAFT CABIN TEMP EICAS MESSAGE(<P>TRANSFERRED TO MDDR <SPAN>153269 IAW MEL 21-61-00.</SPAN></P> / <P><SPAN>PERFORMED ZONE TEMP CONTROL SYSTEM OPERATIONAL TEST IAW B767 AMM 21-61-00. OPS CHECK GOOD AT THIS TIME. THIS CLEARS DMI 153269. REMOVED ALL PLAC.</SPAN></PSep 9, 2021 · N1093A · Boeing 76736NSDR UIEA2021091481988Valve · faultedAFT CABIN TEMP CONTROL SYSTEM INOP ( CABIN COMPT TEMP CONTROL SYSTEM / ALL CARGO CONFIGURATION )(<P>TRANSFERRED TO MEL 21-61-01-02, CAT C, DUE DATE 17 SEP21. MDDR 153159. MCC NOTIFIED. PLACARD INSTALLED. LP 1407696: T/S PER FIM 21-60 FT 804 TO STEP 52 SHEET 5Sep 7, 2021 · N1709A · Boeing 767375SDR AALA202109081443Controller · uncontrollableAIRCRAFT WAS GROUNDED: COCKPIT TEMPERATURE UNCONTROLLABLE AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO DFW WHERE IT LANDED SAFELY WITHOUT FURTHER INCIDENT. REPLACED ZONE TEMPERATURE CONTROLLER PER AMM 21-63-34.Sep 4, 2021 · N188US · Airbus A321211SDR 9JLA2021091330776Control Valve · failedTHE BASE MAINTENANCE TEAM REPORTED THE CABIN TEMP CONTROL VALVE STUCK IN FULL HOT. TROUBLESHOOTING REVELED THE CABIN TEMP CONTROL VALVE WAS DEFECTIVE AND WAS REPLACED WITH AN OVERHAULED UNIT. OPS AND LEAK CHECKS WERE SATISFACTORY AND RETURNED THE AIRCRAFT TO SSep 2, 2021 · N343CC · Cessna 560XLSDR ASAA2021082535783Warning Message · illuminatedCONT CAB "ZONE TEMP"" LIGHT AFTER RECALL. GROUNDED - YES. (RESOLVED ON W/O: 1882902 TASKCARD: N/R-00005 ) VERIFID DISCREPANCY. ACCOMPLISHED BOTH PACK TEMP CONTROLLERS BITE PER TASK 21-61-00-700-806-002 PACK/ZONE TEMPERATURE CONTROLLER BITE TEST . FOUND #2 CONTAug 25, 2021 · N403AS · Boeing 737990ERSDR ASAA2021082535781Warning Message · false activationZONE TEMP CONT CAB COMES ON WITH RECALL AND GOES OUT WITH MASTER CAUTION RESET. GROUNDED - YES. (RESOLVED ON W/O: 1882337 TASKCARD: N/R-00003 ) VERIFIED DISCREP. . PERFORMED B737-900 FIM 21-62 ASK 801, #2 CNTLR SHOWS FLT DECK TRIM VALVE FAULT. PER FORMED FIM 2Aug 25, 2021 · N481AS · Boeing 737990ERSDR ASAA2021082435784Warning Message · false activationCONT CAB ZONE TEMP ON DURING RECALL, LIGHT EXTINGUISHES WHEN RESETTING MASTER CAUTION. GROUNDED - YES. RLS PER MEL 21-21G CONT CAB ZONE TEMP PRIMARY INOP. ZONE TEMP CONT LOGGED FLIGHT DECK TRIM VALVE. FAULT CLEARED & TESTS NORMAL PER 21-61-00. GROUND VERIFICAug 24, 2021 · N440AS · Boeing 737990ERSDR UIEA2021082401862Control Valve · faultedAFT CABIN COMPARTMENT SHOWS 7D EVENT THOUGH AFT CABIN TEMPERATURE CONTROLLER IS SET TO WARM DURING CRUISE FLIGHT(<P>PERFORMED BITE CHECK ON DECK SYSTEM IAW FIM. REMOVED AND REPLACED LEFT PACK TEMP CTRL VALVE IAW AMM 21-51-12. OPS CK GOOD AT THIS TIME.</P>)Aug 23, 2021 · N1997A · Boeing 76733ASDR UIEA2021082401868Sensor · failedAFT CABIN TEMP EICAS MESSAGE.(<P>ITEM TRANSFERRED TO DMI 152434 PER MEL 21-61-01-02. CAT C. DUE 03SEP21. PERFORMED ZONE TEMP BITE IAW FIM 21-61-00. FOUND AFT ZONE SENSOR BAD. TJ @ 1704Z.</P> / <P>24AUG, SCK MX, LP 1386751, ITEM M2: CLEANED TEMP SENSOR IAW B767Aug 23, 2021 · N1487A · Boeing 76731KSDR UIEA2021082301848Controller · faultedAFT CABIN TEMP EICAS DURING CRUISE. FOLLOWED NON NORMAL CK LIST(<P>PERF BITE ON ZONE TEMP CONTROLLER.IAW AMM 21-61-00. RESET CONTROLLER. MSG AND FAULT CLEARED. OPS CK NORMAL.</P>)Aug 22, 2021 · N1487A · Boeing 76731KSDR ASAA2021081935749Control Valve · faultyCAB CONT "ZONE TEMP" ILLUMINATED, COMPLIED WITH QRH PROCEDURE AND "ZONE TEMP" RESET WITH MASTER CAUTION RESET. CAB CONT AT FULL WARM PRODUCED 10 DEGREES C ON SUPPLY DUCT TEMP, COCKPIT WAS COLD. CONT CAB FWD CAB & AFT CAB ALL SELECTED OFF. COCKPIT TEMP STABILIZAug 19, 2021 · N403AS · Boeing 737990ERSDR ASAA2021082735782Modulating Valve · inoperativeLEFT PACK LIGHT LILLUMINATED DURING MASTER CAUTION RECALL. EXTINGUISHED WITH RESET. GROUNDED - YES. REPLACED CONTROL CABIN TRIM MODULATING VALVE REF B737-800 AMM 21-61-21. OPS CHECK GOOD. NO FURTHER DEFECTS NOTED. PLACARDS REMOVED, C/N 18028508 REMOVED. THIS CAug 18, 2021 · N508AS · Boeing 737890SDR ASAA2021081135683Valve · faultedUNABLE TO CONTROL FLIGHT DECK TEMP WITH "CONT CAB" SET TO FULL WARM, SUPPLY DUCT TEMP <0 DEG C. FLIGHT DECK VERY COLD. AIR TEMP OF LEFT PACK ALSO <0 DEG C. WITH FULL WARM SELECTED, "CONT CAB" TEMP SLOWLY (20 MIN) CLIMBS TO 10 DEG C. LEFT PACK TEMP STILL PEGGEDAug 11, 2021 · N403AS · Boeing 737990ERSDR ASAA2021081195671Warning Light · false activationCONT CAB ZONE TEMP LIGHT ILLUMINATES ON MASTER CAUTION RECALL. GROUNDED - YES. INITIAL EVALUATION, CONFIRMED DEFECT, CONT CAB ZONE TEMP LIGHT ON MASTER RECALL. PERFORMED PZTC BITE IAW B737-900 FIM 21-62 TASK 801. PZTC #1 HAD FLT DECK TRIM VALVE RED LIGHT ON BIAug 9, 2021 · N474AS · Boeing 737990ERSDR CALA2021080901303Control Valve · malfunctionedCABIN TEMPS UNCONTROLLABLE ON CLIMBOUTCOCKPIT 136 TOMC UPDATE: CREW ADVISED VIA ACARS PACK 1 OUTLET TEMP MUCH HIGHER THAN PACK 2 OVER 10 DEG, TOMC ADVISED CREW TO TURN OFF PACK WITH HIGHEST OUTLET TEMP (PACK 1) CREW REPLIED THE TEMPS STARTED TO DROP. TOMC SUSPAug 9, 2021 · N472UA · Airbus A320232SDR ABXA202108053070Control Valve · intermittentCABIN ALT & CABIN ALTITUDE LIGHTS ILLUMINATED. EICAS MESSAGE CABIN ALTITUDE WAS DISPLAYED. UNABLE TO RESTORE CABIN PRESS. USING MANUAL MODE. DESCENDED TO FL 280 LIGHT WENT OUT. OXYGEN WAS USED. AICRAFT CONTINUED TO SCHEDULED ARRIVAL AIPORT. AIRCRAFT WAS GROUNAug 3, 2021 · N795AX · Boeing 767281SDR P5CA2021073100270Indicator · faultedTHE TEMP CONTROL VALVE INDICATOR ON THE OVERHEAD PANEL WILL NOT MOVE POSITION EITHER IN AUTO CONTROL OR IN MAN CONTROL(<P>FOUND F/D TEMP VALVE WORKS OK ON ECS PAGE, BUT TEMP PANEL IND INOP. DEFERRED TO MEL 21-65-01 PER MDDR #151055, CAT "C". INSTALLED PLACARD.Jul 31, 2021 · N643GT · Boeing 7673JHFSDR ASAA2021080235582Modulating Valve · faultedPER SEAMC PAT AND VERBAL FROM FLIGHT CREW CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED AND RESET WITH MASTER CAUTION. GROUNDED - YES. PERFORMED PACK TEMPERATURE CONTROL BITE TEST PER B737-800 FIM 21-62 TASK 801. FOUND FLT DECK TRIM VALVE FAULT ON R/H PACK/ZONE TEJul 30, 2021 · N566AS · Boeing 737890SDR ASAA2021072635532Sensor · dirtyCONT CABIN 'ZONE TEMP' ILLUMINATES ON RECALL AND EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. PACK/ZONE TEMP CONTROLLER BITE PER B737-900 FIM 21-62 TASK 801 SHOWED FAULT FOR CONTROL CABIN TEMP CONTROL VALVE BUT VERIFY TEST DID NOT CONFIRM FAULT. FOUJul 26, 2021 · N477AS · Boeing 737990ERSDR ASAA2021072635531Control Valve · faultyLEFT PACK LIGHT ILLUMINATES ON RECALL RESET EXTINGUISHES LIGHT. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE TEST PER B737-800 FIM 21-62 TASK 801. ISOLATED FAULT, LEADING TO REMOVAL & REPLACEMENT OF (LEFT) TCV 139 IAW FIM TASK 21-62 & B737-800 AMM 21-51-10Jul 26, 2021 · N592AS · Boeing 737890SDR ASAA2021072435494Control Valve · failedRT PACK ILLUM IN FLIGHT @ CRUISE, RESET WITH MASTER CAUTION. GROUNDED - YES. REMOVED AND REPLACED R/H PACK TCV VALVE (V00141) REF AMM 21-51-10. OPS CHECK GOOD ALL TEST PASS. THIS CLEARS MEL 21-32B SEAMC MIKE NOTIFIED AND PLACARD REMOVED. GROUND VERIFICATION TEJul 24, 2021 · N423AS · Boeing 737990ERSDR ASAA2021072435493Control Valve · failedCABIN RUNS WARM IN ALL PHASES OF FLIGHT. IMPOSSIBLE TO COOL DOWN. GROUNDED - YES. REPLACED ALL 3 CABIN TEMP SENSOR FILTERS WITH NEW ONES REF B737-900 AMM 21-61-06-400-801. ACCOMP CABIN TEMP CONT & IND OPS TEST. CONT CABIN TEST PASS, BUT FWD & AFT PASS CABIN UNJul 24, 2021 · N423AS · Boeing 737990ERSDR CALA2021072301164Controller · failedSD BLEED PAGE SHOWSAMBER XX FOR PACK1 OUTLET TEMP.PACK1 BYPASS V ALVE POS. PACK COMP OUTL LOCKED PER TOMC. H CASTRO ITEM UNLOCKED BY TOMC REPLACED PACK 1 TEMP CONTROLLER 7HH PER AMM 21-61-34. OPS CHECK WAS GOOD AT THIS TIMEJul 23, 2021 · N412UA · Airbus A320232SDR ASAA2021071535417Modulating Valve · faultedZONE TEMP ILLUMINATES ON RECALL. GROUNDED - YES. REMOVED AND REPLACED TRIM AIR MODULATING VALVE (CONTROL COMPARTMENT) PER B737-900 AMM 21-61-21. NO LEAKS NOTED AT THIS TIME. THIS CLEARS MEL 21-21G REMOVED INOP PLACARD SEAMC MARK CONTACTED. ZONE TEMP DOES NOT IJul 15, 2021 · N491AS · Boeing 737990ERSDR 4DPA2021071400001Circuit Breaker · not seatedRETURN FLIGHT-ISSUE: DURING CLIMB WAS REPORTED PAX HAD NO AC CREW OBSERVED CABIN TEMP 86F RETURNED TO FIELD. CORR ACTION: TROUBLESHOT SYSTEM AND FOUND THE GASPER FAN CIRCUIT BREAKERS NOT SEATED FULLY. RESET CB AND CYCLED SYSTEM POWER. PERFORMED OPERATIONAL CHEJul 13, 2021 · N253JX · Emb EMB135LRSDR ASAA2021071035352Modulating Valve · faultyCONT CAB ZONE TEMP ILLUM W/ RECALL, LIGHT OUT W/ MASTER CAUTION RESET QRH COMPLETED. GROUNDED - YES. FOUND FAULT WITH FLT DECK TRIM VALVE, REMOVED AND REPLACED TRIM VALVE REF B737-800 AMM 21-61-21 OPS CHECKED GOOD, FAULT CLEARED.Jul 10, 2021 · N513AS · Boeing 737890SDR UIEA2021071201522Warning Message · false activationRIGHT AFT CABIN TEMP DISPLAY 9 DEGREES WITH TEMPERATURE KNOB IN THE 2 OCLOCK POSITION.(<P>CYCLED ZONE TEMP INDICATION C/B IAW AMM 21-65-01. NO EICAS MESSAGES FOUND. ALL INDICATION NORMAL. NO FURTHER MX NEEDED.</P>)Jul 9, 2021 · N1997A · Boeing 76733ASDR ASAA2021070235234Warning Message · false activation"CONT CAB" TEMP CONTROLLER ZONE TEMP LIGHT. LIGHT GOES OUT WHEN MASTER CAUTION PUSHED. GROUNDED - YES. PZTC #2 FAULTED FLIGHT DECK TRIM VALE, RESET FAULT & OPS BOTH PACKS FOR 20 MINUTES, RECALL TEST PASSED NO FAULTS NOTED, B737-900 AMM 21-00-00 & AMM 21-51-00-Jul 2, 2021 · N486AS · Boeing 737990ERSDR ASAA2021070235233Modulating Valve · inoperativeFOR CAB TEMP DIFFICULT TO KEEP COOL. TEMP SELECT KNOB MUST BE TURNED FAR TO LEFT. AFTER LANDING CONT CAB TEMP SPIKED VERY HOT BUT WAS CONTROLLABLE. GROUNDED - YES. REMOVED AND REPLACED FLIGHT DECK TEMPERATURE CONTROL VALVE IAW B737-900 AMM 21-51-10. OPS AND LJul 2, 2021 · N493AS · Boeing 737990ERSDR UIEA2021070101449Indicator · inoperativeTRIM AIR VALVE POSITION INDICATOR INOP ( TRIM AIR VALVE POSITION INDICATOR )(<P>FWD TO MEL 21-64-01, MDDR #149493, CAT C, DUE DATE 11JUL21.</P> / <P>LP 1463337: REMOVED AND REPLACED TRIM AIR VALVE POSITION INDICATOR IAW AMM 21-64-01. OPS CHECK GOOD. THIS CLOSEJun 30, 2021 · N663GT · Boeing 767324SDR QXEA2021062200305Sensor · malfunctionedTEMPERATURE GAUGE ON F/A CONTROL PANEL RED 44 DEG IN CRUISE FLIGHT WHEN ACTUAL TEMPERATURE IN CABIN WAS APPROX. 80 DEG F. DIVERTED. LANDING UNEVENTFUL. REMOVED FROM SERVICE. REPLACED CABIN TEMP SENSOR AND CORRECTED CABIN SENSOR EJECTOR ORIENTATION. OPS CHECK GJun 22, 2021 · N434MK · Bombdr DHC8402SDR NACA2021061500002Controller · not reportedDISCREPANCY: REPLACE CABIN CONTROLLER ASSY PER NAC MX CONTROL. CORRECTIVE ACTION: REPLACED CABIN CONTROLLER ASSY PER 767 AMM 21-61-03, ETOPS GROUND VERIFICATION OKAY.Jun 15, 2021 · N321CM · Boeing 767323SDR NACA2021061500001Warning Light · false activationAFT CABIN TEMP, FWD CABIN TEMP, AND FLIGHT DECK TEMP EICAS LIGHTS CAME ON AFTER STARTING THE ENGINES. PERFORMED BITE TEST OF CABIN ZONE TEMP CONTROLLER, NO FAULTS. RESET CONTROLLER, OPS CHECK GOOD. GROUND VERIFICATION COMPLETED, AIRCRAFT REMAINS ETOPS 180.Jun 15, 2021 · N321CM · Boeing 767323SDR UIEA2021061401345Modulating Valve · failedFWD CABIN INOP(<P>PERFORMED FIM 21-60 FT 804 ZONE TEMPERATURE BITE PROCEDURE FAULT LIGHT FOR FWD ZONE TRIM VALVE: ILLUMINATED & PERFORMED FIM 21-60 FT 811 HAD FWD TEMP MSG & FWD CAB INOP LIGHT. REMOVED AND REPLACED FWD TRIM AIR MODULATING VALVE IAW AMM 21-61-0Jun 14, 2021 · N1181A · Boeing 7673Y0SDR NACA2021061400001Warning Message · false activationDISCREPANCY: AFTER ENGINES WERE STARTED, AFT CABIN TEMP, FWD CABIN TEMP, FLT DECK TEMP EICAS MESSAGES ALL ILLUMINATED, RETURNED TO GATE. CORRECTIVE ACTION: PERFORMED BITE CHECK AND RESET ALL THREE BOXES IAW AMM 21-61-03, OPS CHECK GOOD.Jun 13, 2021 · N321CM · Boeing 767323SDR ASAA2021061235084Control Valve · inoperativeFLIGHT DECK TEMP EXCESSIVELY HOT, SHOWING 62'C ON CONT CAB. FOLLOWED MEL PROCEDURE WITH NO EFFECT. GROUNDED - YES. REMOVED & REPLACED LEFT AC PACK TEMPERATURE CONTROL VALVE REF B737-800 AMM 21-51-10, OP CHECKS FOR INSTALLATION OK.Jun 12, 2021 · N588AS · Boeing 737890SDR ASAA2021061235083Modulating Valve · faultyENROUTE FA'S SAID PREMIUM CLASS PASSENGERS WERE VERY WARM AND WE TRIED TO COOL CABIN. NO CHANGE WE AN CABIN HOT QRH AND TUNED TRIM AIR SWITCH OFF. CABIN COOLED BETTER. OTHER PARTS OF CABIN WERE NORMAL. GROUNDED - YES. PERFORMED B737-900 FIM 21-61 TASK 801 #2 TJun 12, 2021 · N402AS · Boeing 737990ERSDR I5PA2021061192202Selector · faultedTHE FLIGHT DECK CABIN TEMP SELECTOR WAS REPALCED DUE TO A CABIN TEMP RUN AWAY IN FLIGHT. DURING A BITE CHECK OF THE ZONE TEMP CONTROLLER, A TEMP SELECTOR FAULT WAS FLAGGED WHICH REQUIRED REPLACEMENT OF THE UNIT. AFTER REPLACEMENT, THE SYSTEM WAS CONFIRMED OPERJun 11, 2021 · N922TS · Boeing 757260PFSDR ASAA2021061035073Control Valve · faultyREF L/P 60201728. WHILE ACCOMP PZTC BITE TEST FOUND TCV FAULT R/H PACK. FAULT WILL NOT RESET. GROUNDED - YES. REMOVED & REPLACED R/H PACK TCV LK & OPS NORMAL REF B737-900 AMM 21-51-10. ACCOMP PZTC BITE TEST NO FAULTS FOUND REF AMM 21-61-00.Jun 10, 2021 · N403AS · Boeing 737990ERSDR ASAA2021060935064Valve · faultedFLT DECK TRIM VALVE FAULT APPEARED WHILE PERFORMING #2 PZTC BITE CHECK FOR LL2 PER FIM 21-62 TASK 801. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 21-62 TASK 832. NO DEFECTS NOTED.Jun 9, 2021 · N409AS · Boeing 737990ERSDR ASAA2021060635062Modulating Valve · faultedON LANDING CONT CAB TEMP WENT FROM 20-50+ WHILE BEING COMMANDED TO COLD. GROUNDED - YES. ACCOMPLISHED BITE TEST REF B737-800 AMM 21-61-00-700-806-002 NO FAULTS NOTED, REMOVED AND REPLACED CONT CABIN TRIM VALVE REF AMM 21-61-21 DO TO HISTORY.Jun 6, 2021 · N536AS · Boeing 737890SDR ASAA2021060635049Valve · malfunctionedCONT CAB ZONE TEMP INDICATION FLT DECK PRIMARY TEMP CONTROL INOP. GROUNDED - YES. VERIFIED FAULT, REMOVED & CLEANED & REINSTALLED. ALL 3 TEMP SENSOR FILTERS. ACCOMP PACK/ ZONE CONTLR BITE. #1 NO FAULTS #2 FAULTS FLT DECK TRIM VALVE. ACCOMP RESET. RE-ACCOMP BITJun 6, 2021 · N481AS · Boeing 737990ERSDR UIEA2021060401268Warning Message · false activationFWD CABIN TEMP EICAS MSG PRIOR TO BLOCK OUT(<P>DEFER PER MEL 21-61-01-02 CAT C DUE 13JUN21 REF MDDR 147976 CW AT 22:41Z.</P><P>LOG 1343041 ITEM #4 TROUBLE SHOOT PER FIM 21-60 FAULT TREE 806. MESSAGE NOT DISPLAYED. OPS NORMAL. THIS CLEARS MDDR #147976. ID@0118ZJun 3, 2021 · N1181A · Boeing 7673Y0SDR UIEA2021060701279Warning Message · false activationFWD CABIN TEMP EICAS MESSAGE.(<P>PERFORMED BITE ON ZONE TEMP CONTROLLER. PER 21-60-99 MSG CLEARED, OPS CK NORMAL, NO FAULTS NOTED.</P>)Jun 3, 2021 · N1181A · Boeing 7673Y0SDR ASAA2021053134989Warning Light · false activationAFTER ENGINE START AND MASTER RECALL PUSHED CONT CAB ZONE TEMP LIGHT ILLUMINATED, RESETS WITH MASTER CAUTION RESET. GROUNDED - YES. #2 PZTC LOGGED CONTROL CABIN TRIM VALVE FAULT. RESET FAULT. SEVERAL CONSECUTIVE BITE CHECKS PASSED. OBSERVED VALVE DURING BITE. May 31, 2021 · N474AS · Boeing 737990ERSDR ASAA2021053034958Warning Message · false activationR/H PZTC BITE INDICATES "FLIGHT DECK TRIM VALVE". GROUNDED - YES. COMPLIED W/ B737-800 FIM 21-62 TASK 832 E. (BITE THROUGH VERIFY) WITH NO DEFECTS. PZTC RESET.May 30, 2021 · N592AS · Boeing 737890SDR ASAA2021052934959Warning Message · false activationZONE TEMP CONT CAB ILLUMINATED INFLIGHT ON RECALL. GROUNDED - YES. FOUND FLIGHT DECK TRIM VALVE FAULT, PERFORMED BITE TEST ON PACK TEMP CONTGROL, CHECKED NORMAL AND CLEAR THE FAULT PER B737-800 AMM 21-62 TASK 801.May 29, 2021 · N566AS · Boeing 737890
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