N407AS

Service difficulty reports · 273

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. 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 n_number = 'N407AS' AND registry_match = 'registration'
  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 ASAA2023070543894Unknown · unknownELEC LIGHT ILLUMINATED AFTER GROUND POWER DROPPED OFF LINE AND BUSSES SWITCHED BAC TO APU POWER. GROUNDED - YES. P5-13 BITE SHOWS "SPCU INOP". ACCOMPLISHED FIM 24-34 TASK 802, CYCLED C/B'S, CLEARED FAULT MSG. FAULT WAS INTERMITTENT. NO HISTORY LAST 30 DAYS.Jul 5, 2023 · N407AS · Boeing 737900ER · DC Generating SystemSDR ASAA2023060343448Regulator · faultyAT CRUISE ALT OF FL 330, DUCT SPLIT IS CONSISTENT AT 23 PSI. LEFT DUCT IS 40 PSI AND RIGHT PACK IS 17 PSI. OAT IS -50C AND ABOVE PRESSURES MEASURED AT 88.5% N1. GROUNDED - YES. ACCOMPLISHED HEALTH CHK TASK CARD NG-36WC-00002-2. REPLACED BLEED AIR REG REF B737-Jun 3, 2023 · N407AS · Boeing 737900ER · Pneumatic Distribution SystemSDR ASAA2023060343446Bleed Valve · bindingL PACK 35 R PACK 19 AT CRUISE. GROUNDED - YES. (REF TSR714439) ACCOMPLISHED HEALTH CHECK TEST CARD NG-36WC-00002-2. REPLACED BLEED AIR REG REF B737-900 AMM 36-11-03. PERFORMED HIGH POWER RUN. R/H DUCT PRESS FAILED, 20% N1 L-20 R-GPS 60% N1 AND ABOVE L-30 R-10.Jun 3, 2023 · N407AS · Boeing 737900ER · Compressor Bleed ValveSDR ASAA2023050543171Modulating Valve · faultyCONT CAB ZONE TEMP LIGHT ILLUMINATED AND WON'T TRIP RESET. GROUNDED - YES. REMOVED AND REPLACED CONTROL CABIN TAV REF B737-900 AMM 21-61-21.May 5, 2023 · N407AS · Boeing 737900ER · Cabin Cooling SystemSDR ASAA2023042543104Engine · leakingREPORT OF #2 ENGINE WITH OIL POOLING AND DRIPPING FROM AFT FLAME ARRESTOR AFTER SHUTDOWN. CURRENT OIL CONSUMPTION IS .31. GROUNDED - YES. REMOVED ESN 962514. TRANSFERRED TO ASA SHOP W/O# 1952903.Apr 25, 2023 · N407AS · Boeing 737900ER · Turbine SectionSDR ASAA2023041442872Unknown · unknownDURING RECALL, ZONE TEMP LT(CONT CAB) ILLUMINATES WITH THE AIR COND RECALL LT. RESETS DURING MASTER CAUTION RESET. OPERATION APPEARS NORMAL DURING CRUISE AT 5L350. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE PER B737-900 FIM 21-62 TASK 801. FOUND FLT DECKApr 14, 2023 · N407AS · Boeing 737900ER · Cabin Temperature Control SystemSDR ASAA2023040142669Unknown · unknownENGINE AND WING CONTROL CIRCUIT BREAKER POPPED. GROUNDED - YES. RESET CB CONTROL PANEL OPS TEST NORMAL REF B737-900 WDM 30-21-11 AND B737-900 AMM 20-60-01.Apr 1, 2023 · N407AS · Boeing 737900ER · Air Intake Anti/De-Ice SystemSDR ASAA2023031042317Motor · noisyFOUND R/H #2 AFT FUEL BOOST PUMP MAKING LOUD / ODD NOISE. GROUNDED - YES. R/R #2 AFT FUEL BOOST PUMP PER B737-900 AMM 28-22-41.Mar 10, 2023 · N407AS · Boeing 737900ER · Aircraft Fuel Distribution SystemSDR ASAA2023011441518Fmc · faultedDURING ENGINE START "FMC DISAGREE" MESSAGE ON BOTH PILOTS NAV DISPLAYS. GROUNDED - YES. FOLLOWED QRH AND MESSAGES NO LONGER DISPLAYED.Jan 14, 2023 · N407AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2022120441029Start Valve · faulted#1 ENGINE WOULD NOT START DURING PUSH BACK. GROUNDED - YES. START VALVE REPLACED REF B737-900 AMM 80-11-03. ACCOMPLISHED PNEUMATIC LEAK CHECK REF AMM 71-00-00-700-809-F00. LEAK CHECK GOOD. OPS CHECK GOOD. NO DEFECTS NOTED.Dec 4, 2022 · N407AS · Boeing 737990ER · Engine Start Valves/ControlsSDR ASAA2022112640928Transmitter · faultyAT CRUISE, A/P ON & IN TRIM, AILERON TRIM SHOWS 1.5 UNITS LEFT-SIMILAR WITH A/P A&B-RUDDER TRIM NORMAL. GROUNDED - YES. PERFORMED DFCS TEST B737-900 FIM 22-11 TASK 801. VALUES FOR A AND B WERE 0.35, BITE LIBRARY TEST 31 FAILED FOR AILERON. REMOVED AND REPLACEDNov 26, 2022 · N407AS · Boeing 737990ER · Aileron Control SystemSDR ASAA2022111340770Warning Message · false activationCONT CAB ZONE TEMP ON WITH RECALL OFF WHEN RESET AFTER ENGINE START. GROUNDED - YES. ACCOMPLISHED ZONE TEMP CONTROLLER BITE CK # 1 CONTROLLER PASS NO FAULTS. # 2 CONTROLLER SHOW FLT DECK TRIM VALVE FAULT WAS ABLE TO RESET. RE-ACCOMPLISHED BITE CK ON # 2 CONTRONov 13, 2022 · N407AS · Boeing 737900ER · Cabin Temperature Control SystemSDR ASAA2022100540214Actuator · leakingON THE #2 ENG FOUND THE R/H VSV LEAKING A STEADY STREAM OF FUEL FROM DRAIN. GROUNDED - YES. REMOVED AND INSTALLED R/H VSV ACTUATOR REF B737-900 AMM 75-31-01.Oct 5, 2022 · N407AS · Boeing 737900ER · Compressor Bleed ControlSDR ASAA2022100140153Exchanger · leakingDURING #2 ENG RUN FOUND MAIN OIL/FUEL HEAT EXCHANGER DRAIN PAD LEAKING AT 7 DROPS PER MINUTE. GROUNDED - YES. REMOVED MAIN OIL/ FUEL HEAT EXCHANGER IAW B737-900 AMM 79-21-02/401 AND SERVO FUEL HEATER PER AMM 73-11-07/401. LEAK CHECK GOOD.Oct 1, 2022 · N407AS · Boeing 737900ER · Engine Oil Distribution (Airframe Furnished)SDR ASAA2022092840083Power Supply · inoperativeEMERGENCY LIGHTS AT RH FWD EXTERIOR OVERWING EXIT AND INTERIOR EMERGENCY LIGHT ABOVE ROW 13FED AND 9FED DON'T COME ON. GROUNDED - YES. REMOVED & REPLACED M1676, EMERGENCY POWER SUPPLY WITH BATTERY. REF B737-900 AMM 33-51-06-960-805 & -806.Sep 28, 2022 · N407AS · Boeing 737900ER · Emergency LightingSDR ASAA2022092640069Actuator · warning light#1 PACK LIGHT ILLUMINATED AFTER ENG STARTED PACK LIGHT CLEARS AFTER MASTER CAUTION SYSTEM IS RESET. GROUNDED - YES. REPLACED LH RAM INLET ACTUATOR REF B737-900 AMM 21-51-21.Sep 26, 2022 · N407AS · Boeing 737900ER · Cabin Cooling SystemSDR ASAA2022092240044Actuator · intermittentL PACK LIGHT ILLUMINATES WITH MASTER CAUTION RECALL. RESETS WITH MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PZTC BITE CHECK, #1 CONTROLLER SHOWED FAULT FOR RAM AIR ACTUATOR. VERIFY SHOWED GREEN LIGHT. RE-ACCOMPLISHED TEST. OPS NORMAL. INTERMITTENT FAULSep 22, 2022 · N407AS · Boeing 737900ER · Cabin Cooling SystemSDR ASAA2022083039712Lamp · inoperativeWHILE ACCOMPLISHING ASA TASK CARD 78233008. FOUND INTERIOR EMERGENCY LIGHTS INOP AT ROW/ AISLE 1 AND FWD SERVICE DOOR LINING. ALSO FOUND R/H FORWARD ESCAPE SLIDE OVERWING LIGHT, AND L/H LOWER SLIDE LIGHT INOP. GROUNDED - YES. RELAMPED PER B737-900 AMM 33-51-04Aug 30, 2022 · N407AS · Boeing 737900ER · Emergency LightingSDR ASAA2022082139567Static Inverter · faultyAFTER ENGINE START ON PUSHBACK OVERHEAD ELEC LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED P5-13 ELEC BITE REF B737-900 FIM 24-31 TASK 801 AUX BATTERY CHARGER FAULTED, STATIC INVERTER, SPCU FAULTED. ATTEMPTED TO CLEAR FAULTS SPCU AND AUX BAT CHARGER CLEARED Aug 21, 2022 · N407AS · Boeing 737900ER · DC Generating SystemSDR ASAA2022070438980Actuator · faultyLT PACK ON RECALL RESETS WITH MASTER CAUTION. GROUNDED - YES. REMOVED AND REPLACED L/H RAM AIR ACTUATOR IAW B737-900 AMM 21-51-21. ADJ COMPLETED. RIG PIN INSTALLED/ REMOVED. INSTALLATION TEST GOOD. PER B737-900 FIM 21-62 TASK 801. PZTC BITE CHECK GOOD.Jul 4, 2022 · N407AS · Boeing 737900ER · Cabin Cooling SystemSDR ASAA2022061038614Switch · faultyDURING CROSSFEED OPERATION #1 LOW PRESSURE LIGHT DID NOT ILLUMINATE WHEN OFF SELECTED. LIGHT DOES WORK WHEN LIGHTS TEST COMPLETE & PUSH TO TEST. GROUNDED - YES. REPLACED #1 AFT LOW PRESSURE SWITCH PER B737-900 AMM 28-42-11. OPS CHECKED PER AMM 28-22-41. #1 LOWJun 10, 2022 · N407AS · Boeing 737900ER · Fuel Indicating SystemSDR ASAA2022060938606Blade · nickedENG 2 FAN BLADE #14 FOUND NICK IN AREA C LEADING EDGE. GROUNDED - YES. ACCOMPLISHED FAN BLADE REPAIR BY BLENDING PER B737-900 AMM 72-21-02.Jun 9, 2022 · N407AS · Boeing 737900ER · Turbine Engine Air Inlet SectionSDR ASAA2022050738230Oil Cap · damaged#2 ENGINE OIL FILLER CAP DAMAGED. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE OIL FILLER CAP PER AMM B737-900 79-11-01.May 7, 2022 · N407AS · Boeing 737900ER · Engine Oil Storage (Airframe Furnished)SDR ASAA2022040337887Unknown · unknownF/O SIDE MAP FLAG, NO VSPD FLAG AND LDG ALT FLAG. GROUNDED - YES. FOUND RT FMC FAIL ALONG WITH FMC DISAGREE MESSAGE. PULLED, THEN RESET FMCS COMPTR 2 C/B AND ACCOMP'D B737-900 FIM 34-61 TASK 801, OPS NRML AND ALL FLAGS AND MESSAGES EXTINGUISHED. ETOPS SIGNIF SApr 3, 2022 · N407AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2022032837806Unknown · unknown"ELEC" LIGHT ILLUMINATED UPON CLEARING RUNWAY. COMPIED WITH QRH. GROUNDED - YES. PERFORMED B737-900 FIM 24-31 TASK 801 AND FOUND AUX BAT CHARGER INOP FAULT. PERFORMED FIM 24-31 TASK 825 AND FAULT CLEARED AND AUX BAT CHARGER OPS NORMAL.Mar 28, 2022 · N407AS · Boeing 737900ER · DC Generating SystemSDR ASAA2022031537708Engine · unknownAFTER #1 ENGINE RUN FWD CHIP DETECTOR HAD SEVERAL CHIPS & SLUDGE ON MAGNET. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE S/N # 660-243 REF T/C # 78454000 W/O #1904325. ENGINE INSTALLATION REF W/O #1904325.Mar 15, 2022 · N407AS · Boeing 737900ER · Engine Oil Distribution (Airframe Furnished)SDR ASAA2022031537694Transmitter · leakingDURING #1 ENG LEAK CHECK FOUND FUEL FLOW XMITTER LEAKING AT AFT FLANGE. GROUNDED - YES. REMOVED AND REPLACED AND OPS/LEAK CHECKS NORMAL #1 ENGINE FUEL FLOW TRANSMITTER. REF B737-900 AMM 73-31-01.Mar 15, 2022 · N407AS · Boeing 737900ER · Engine Fuel Indicating SystemSDR ASAA2022031437690Bushing · missing#1 ENGINE S/N #963435, 3 STAGE VSV CASE HAT LEVER ARM BUSHING MISSING 25 EACH WITH POSSIBLE METAL TO METAL CONTACT. LEVER ARM BUSHING IS ALSO MISSING FROM 3 STAGE VSV LEFT & RIGHT CONNECTING LINK AND SEVERAL ACTUATING RING LEVER ARM BUSHINGS MISSING. GROUNDED Mar 14, 2022 · N407AS · Boeing 737900ER · Turbine Engine Compressor SectionSDR ASAA2022031037665Battery Pack · dischargedEMER LIGHT AT LH ROW 27 IS INOP. GROUNDED - YES. REMOVED, REPLACED AND OPS CHECKD GOOD BATTERY PACK IAW B737-900 AMM 33-51-06-960-805.Mar 10, 2022 · N407AS · Boeing 737900ER · Emergency LightingSDR ASAA2022021537439Probe · faulty#1 ENGINE BITE TEST SHOWS MESSAGE #77-20861 "THE BOTTOM LEFT EGT SIGNAL (T49.5 S-3) IS OUT OF RANGE" ON 0-10 FLIGHT LEGS. GROUNDED - YES. REPLACED S3 T49.5 PROBE ON #1 ENGINE REF AMM 77-21-01/401, PER AMM 71-00-00-800-811-F00 POWERPLANT TEST REF TABLE ACCOMPLIFeb 15, 2022 · N407AS · Boeing 737900ER · Engine Temperature Indicating SystemSDR ASAA2022021037395Battery Pack · failedWHILE ACCOMPLISHING T/C 78233001, FOUND EMERGENCY LIGHT BATTERY PACKS FAIL CAPACITANCE: M1675, M2335, M1671. GROUNDED - YES. T/C 78233001 COMPLETE, REMOVED AND REPLACED BATTERY PACKS M1675, M2335, AND M1671 REF B737-800 AMM 33-51-06-960-805. ALL OPS TESTS PASSFeb 10, 2022 · N407AS · Boeing 737900ER · Emergency LightingSDR ASAA2022021037394Bulb · inoperativeEMERGENCY LIGHT AFT OF L2 DOOR INOP. GROUNDED - YES. RELAMPED LIGHT AFT OF L2 DOOR REF B737-900 AMM 33-51-04-960-801. ALL OPS TESTS PASS.Feb 10, 2022 · N407AS · Boeing 737900ER · Emergency LightingSDR ASAA2021121936965Unknown · unknownON ARRIVAL DESCENDING THROUGH APPROX 12,000' BOTH CDU'S WENT BLANK AND THE CAPTS OUTBOARD DU DISPLAYED "LDG ALT" SHORTLY AFTER "VERIFY POS" FMC FMC WAS DISPLAYED IN THE SCRATCH PAD. IRS POSITION SHIFT SHOWED 2.1 LEFT AND 5.1 RIGHT WHEN ON FINAL APPROACH ON THEDec 19, 2021 · N407AS · Boeing 737900ER · Flight Management Computing Hardware SystemSDR ASAA2021120836882Unknown · unknownMAINT MSG 77-20861 {BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE - LONG TIME FAULT (450 FLT HRS) DEFERRAL PER T/C 78273000. GROUNDED - YES. FOUND S4 EGT READING TO HAVE DASHES. ACCOMPLISHED T49.5 AND EGT SYSTEM INSPECTION REF B737-900 AMM 77-21-01-200-801-FDec 8, 2021 · N407AS · Boeing 737900ER · Engine Temperature Indicating SystemSDR ASAA2021100136249Probe · faultyGE DIAGNOSTICS REPORTS #1 ENGINE TREND DATA SHOWS A DELTA EGT INCREASE AND EGTHDM DECREASE. EGT INDICATION ERRORS ARE SUSPECT. GROUNDED - YES. NO CURRENT FAULTS OR FAULT HISTORY IN #1 ENGINE CDU FAULT CHECK. EGT PROBES READ: S1 - 69.61, S2 - 31.81, S3 - 37.77,Oct 1, 2021 · N407AS · Boeing 737990ER · Engine Temperature Indicating SystemSDR ASAA2021093036143Panel · noneMCP VERT SPEED LCD WINDOW HAS CLUTTER THAT INTERFERES WITH NUMERICAL INDICATIONS. GROUNDED - YES. REMOVED & REPLACED DFCS MCP REF B737-900 AMM 22-11-34 ALL INSTALLATION TEST & LLM PASS.Sep 30, 2021 · N407AS · Boeing 737990ER · Autopilot SystemSDR ASAA2021092836109Idg · inoperativeAT CRUISE FL360 #2 ENGINE SOURCE OFF LIGHT ILLUMINATED. PER CHECKLIST TRIED RECONNECTING GEN WAS UNSUCCESSFUL. STARTED APU AND CONNECTED TO #2 BUS VOLTS AND FREQ AT ZERO FOR #2 GEN. GROUNDED - YES. REMOVED AND REPLACED #2 IDG REF B737-900ER AMM 24-11-11. OPS ASep 28, 2021 · N407AS · Boeing 737900ER · Alternator-Generator DriveSDR ASAA2021071335368Blade · wornPER T/C 78472010 #1 ENG FAN BLADE LUBE. #3 FAN BLADE CU-NI-IN COATING WORN BEYOND LIMITS ON CC SIDE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG #3 AND 15 FAN BLADES REF TASKCARD 78472010.Jul 13, 2021 · N407AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2021071335367Elastomer · tornPER T/C 78472010 #1 ENG FAN BLADE LUBE. #24 PLATFORM ELASTOMERS ARE TORN ON BOTH SIDE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG #24 PLATFORM REF TASKCARD 78472010.Jul 13, 2021 · N407AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2021071335366Spacer · debondedPER T/C 78472010 #1 ENG FAN BLADE LUBE SPACERS #1, 2, 5, 6, 10, 11, AND 16 ELASTOMERS ARE DISBONDED. GROUNDED - YES. REMOVED AND REPLACED #1 ENG FAN BLADE SPACERS 1, 2, 5, 6, 10, 11, AND 16 REF TASKCARD 78472010.Jul 13, 2021 · N407AS · Boeing 737900ER · Turbine Engine Air Inlet SectionSDR ASAA2021071335365Spinner · damagedPER T/C 78472010 #1 ENG. FAN BLADE LUBE FRONT SPINNER HAS A NICK AT OUTER EDGE SURFACE B BETWEEN DUMPLE BOLT HOLE AND ADJACENT HOLE. GROUNDED - YES. REMOVED AND REPLACED FRONT SPINNER CONE REF TASK CARD 78472010.Jul 13, 2021 · N407AS · Boeing 737900ER · Turbine Engine Air Inlet SectionSDR ASAA2021071335360Actuator · malfunctionedL/H PACK RAM AIR ACTUATOR CONTINOUSLY RUNNING. GROUNDED - YES. REPLACED L/H RAM AIR ACTUATOR. OPS CHECK OK. REF B737-900 AMM 21-51-21-400-801.Jul 13, 2021 · N407AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2021060335031Overheat Loop · no test#1 ENGINE "A" OVHT LOOP WILL NOT PASS PREFLIGHT TEST. GROUNDED - YES. C/W ENG FIRE DETECTION OPERATIONAL TEST - ENG #1 A / B LOOPS TEST NORMAL. OPENED ENG #1 FAN COWLS AND THRUST REVERSERS. ACCOMPLISH VISUAL AND PHYSICAL INSPECTION OF ENG #1 LOOPS AND LUG CONNJun 3, 2021 · N407AS · Boeing 737990ER · Overheat DetectionSDR ASAA2021032934478Actuator · faultyLEFT PACK LIGHT ILLUMINATED DURING MASTER CAUTION RECALL. RESETS DURING MASTER CAUTION. GROUNDED - YES. ACCOMPLISHED ZONE TEMP CONTROL BITE PER B737-900 FIM 21-62 TASK 801, FOUND RAM AIR ACTUATOR FAULT. ACCOMPLISHED FIM 21-62 TASK 837. REMOVED AND INSTALLMar 29, 2021 · N407AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2021032734417Warning Light · false indicationDURING MASTER CAUTION RECALL FOR THE DESCENT CHECKLIST, NOTE LEFT PACK LIGHT WAS ILLUMINATED. LIGHT EXTINGUISHED UPON RESET OF THE MASTER CAUTION SYSTEM. GROUNDED - YES. PERFORMED B737-900 FIM 21-62 TASK 801 PACK TEMPERATURE CONTROL BITE PROCEDURE. PERFORMED BMar 27, 2021 · N407AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2021031034275Modulating Valve · faultedDURING CLIMBOUT "ZONE TEMP" LIGHT FOR CONT CAB ILLUMINATED. LIGHT EXTINGUISHED PER QRH WITH MASTER CAUTION RESET. GROUNDED - YES. PERFORMED PACK TEMP CONTROLLER BITE REF B737-900 FIM 21-62 TASK 801. FOUND RIGHT CONTROLLER FAULT FLT DECK TRIM VALVE. REPLACED COMar 10, 2021 · N407AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2021021734120Control Panel · intermittentRADAR WILL NOT STAY IN AUTO WHEN SELECTED. TEST MADE WILL NOT TEST. ON 80 SCALE MAP DISPLAY SHOWS TWO OBJECTS AT THE 5 MILE SCALE ON LT AND RT SIDE. GROUNDED - YES. PERFORMED WEATHER RADAR BITE PER B737-900 FIM 34-43 TASK 801. VERIFIED AUTO SWITCH INTERMITFeb 17, 2021 · N407AS · Boeing 737900ER · Weather Radar SystemSDR ASAA2020121733705Fire Detector · false activationDURING CLIMBOUT (APU OFF) APU OVHT/DETR LIGHT ILLUMINATED MOMENTARILY THEN INTERMITTENTLY THE REST OF THE FLIGHT. GROUNDED-YES. C/W ENGINE/APU FIRE DETECTION CONTROL MODULE BITE PROCEDURE, REF B737-900 FIM 26-10 TASK 801. FOUND UPPER LOOP FAIL LIGHT CODE ILDec 17, 2020 · N407AS · Boeing 737990ER · Fire DetectionSDR ASAA2020121433694Terminal · corrodedAPU DET INOPERABLE LIGHT ILLUMINATED AT CRUISE. GROUNDED-YES. REF B737-900 FIM 26-10 TASK 802, PERFORMED INITIAL EVALUATION, ENGINE/APU FIRE DETECTION CONTROL MODULE BITE PROCEDURE, FIM 26-10 TASK 801, NO FAULTS NOTED. REF B737-900 AMM TASK 26-15-01-210-801Dec 14, 2020 · N407AS · Boeing 737990ER · Fire Protection System WiringSDR ASAA2020101433352Valve · faultyCLIMBING THROUGH APPROXIMATELY 14000 PACK LIGHT ILLUMINATED, HOWEVER NO MASTER CAUTION OR ANNUNCIATOR ILLUMINATED. GROUNDED-YES. PERFORMED PACK/ZONE TEMPERATURE CONTROLLER BITE TEST, PER B737-900 AMM TASK 21-61-00-700-806-002. FOUND LEFT HAND TCV FAULTED. Oct 14, 2020 · N407AS · Boeing 737990ER · Cabin Cooling System
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