N506AS

Service difficulty reports · 490

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 = 'N506AS' 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 ASAA2024031748506Lamp · unsecureMF EMERGENCY EXIT LIGHT ABOVE DIRECTIONS TO OPERATE NOT WORKING. GROUNDED - YES. RESECURED LAMP AT 17F, C/W EMERGENCY LAMP OPS CHECK PER AMM 33-51-00. OPS CHECK GOOD. SEA M/C MARK NOTIFIED.Mar 17, 2024 · N506AS · Boeing 737890 · Emergency LightingSDR ASAA2024020247712Sign · detachedAISLE "EXIT" SIGN FELL BETWEEN ROW 16 & 17. GROUNDED - YES. RESECURED AISLE EXIT SIGN REF AMM 33-25-00. SEAMC MARK. NOTIFIED.NON ASA Y7NR985Y.Feb 2, 2024 · N506AS · Boeing 737890 · Emergency LightingSDR ASAA2023121246710Housing · detachedFWD GALLEY EXIT LIGHT COVER FELL OFF. (OVERHEAD SIGN). GROUNDED - YES. RESECURED FWD GALLEY EXIT LIGHT COVER REF AMM 33-51-01.Dec 12, 2023 · N506AS · Boeing 737890 · Emergency LightingSDR ASAA2023110446018Unknown · unknownAUTO PILOT A WILL NOT ENGAGE. AUTO PILOT B WILL ENGAGE FOR 8 SECONDS THEN DISENGAGE. NO OTHER LIGHTS/MESSAGES OR WARNINGS. GROUNDED - YES. REF FIM 22-11/856 FOUND FAULT AIL ACT PRESS LCL INV INV ON LAST LEG MAINT. MESSAGE 22-11147. PREFORMED DFCS BITE IINTERACNov 4, 2023 · N506AS · Boeing 737890 · Autopilot SystemSDR ASAA2023102345792Unknown · unknownWHILE PERFORMING TASK CARD 78273000, FOUND ENGINE 2 FAULTMSG NBR: 75-10462 THE HPTACC DEMAND AND POSITION SIGNALS DISAGREE. ECONOMIC. GROUNDED - YES. ON DEFERRAL.Oct 23, 2023 · N506AS · Boeing 737890 · Engine Cooling SystemSDR ASAA2023101745706Unknown · unknownWHILE PERFORMING T/C 78273000, FOUND #2 ENG ECONOMIC FAULT CODE 75-20462, THE HPTACC DEMAND AND POSITION SIGNALS DISAGREE. GROUNDED - YES. ON DEFERRAL.Oct 17, 2023 · N506AS · Boeing 737890 · Engine Bleed Air SystemSDR ASAA2023101145586Lens · inoperative17A EMERGENCY EXIT LIGHT LENS COVER INOP. GROUNDED - YES. REPLACED 17A EMERGENCY EXIT DIRECTIONAL LIGHT LENS COVER. OPS NML.Oct 11, 2023 · N506AS · Boeing 737890 · Emergency LightingSDR ASAA2023100345428Unknown · unknownFOUND BURN THROUGH HOLE ON THE #2 ENG HPT NOZZLE OUTER PLATFORM LEADING EDGE APROX 7 O'CLOCK POSITION A.L.F. GROUNDED - YES. ON DEFERRAL.Oct 3, 2023 · N506AS · Boeing 737890 · Turbine SectionSDR ASAA2023092045236Lamp · inoperative16F EMERGENCY EXIT LIGHT BURNT OUT LATE F/A CALL OUT. GROUNDED - YES. RELAMPED 16F EMERGENCY EXIT LIGHT OPS CHECKS GOOD PER AMM 33-51-00.Sep 20, 2023 · N506AS · Boeing 737890 · Emergency LightingSDR ASAA2023091245110Indicator · inoperative#1 GAUGE (FUEL) ON WING INOP. GROUNDED - YES. (RESOLVED ON W/O: 1968889 TASKCARD: N/R-00004 ) REMOVED AND REPLACED FUEL QUANTITY INDICATOR OPS CHECK GOOD REF AMM 28-41-61. THIS CLOSES THIS MEL 28-12B. PLACARDS REMOVED. SEAMC DAVE NOTIFIED.Sep 12, 2023 · N506AS · Boeing 737890 · Fuel Quantity IndicatorSDR ASAA2023091145067Unknown · unknownRT PACK LIGHT ILLUMINATED DURING PREFLIGHT. GROUNDED - YES. RESET SWITCH SUCCESSFUL.Sep 11, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023083145105Control Valve · faultyFOLLOW-UP TO CONTINUING REPORTS OF RIGHT PACK LIGHT ILLUMINATED AND WONT RESET ---(#PRI2)ETOPS SIGNIFICANT SYSTEM---. GROUNDED - YES. (RESOLVED ON W/O: 1968889 TASKCARD: N/R-00003 ) REMOVED AND REPLACED RIGHT PACK FLOW CONTROL AND SHUTOFF VALVE. LEAK AND OPS CAug 31, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023083144878Unknown · unknownWHILE ACCOMPLISHING T/C 78273000 FAULT CODE APPEARED ON #2 ENGINE FAULT CODE# 75-20462. THE HPTACC DEMCND AND POSITION SIGNALS DISAGREE (ECONOMIC FAULT) MUST BE CORRECTED IN 500 FLT HOURS. GROUNDED - YES. ON DEFERRAL.Aug 31, 2023 · N506AS · Boeing 737890 · Fuel Controlling SystemSDR ASAA2023082744808Unknown · unknown#2 SOURCE OFF LIGHT ILLUMINATED WHEN APU GEN PUT ON BUS. DID NOT CLEAR UNTIL APU REMOVED FROM BOTH GEN BUSSES AND RECONNECTED. GROUNDED - YES. PERFORMED FIM SOURCE OFF LIGHT ILLUMINATES WITH GRD POWER AVAILABLE TO ON POSITION AND APU OPERATING VERIFIED SOURCE Aug 27, 2023 · N506AS · Boeing 737890 · Electrical Power SystemSDR ASAA2023082544771Unknown · unknownRIGHT PACK LIGHT ILLUMINATED ON PUSH BACK, R PACK TEMP SHOWS OFF SCALE HOT, UNABLE TO RESET. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE PER FIM 21-62 TASK 801. LH CONTROLER SHOW RAM AIR FAULT & RIGHT CONTROLLER THIS PACKS TCV. ACCOMPLISHED RAug 25, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023080844476Unknown · unknownRIGHT PACK LIGHT ILLUMINATED AND DOES NOT CLEAR WITH MASTER CAUTION RECALL RESET. GROUNDED - YES. ACCOMPLISHED FIM 21-53 TASK 821. PACK LIGHT RESETS AND OPS TEST NORMAL REF. 21-62 TASK 801. NO FAULTS ON EITHER CONTROLLER.Aug 8, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023073144321Unknown · unknownLEFT PACK LIGHT ILLUMINATED AFTER RECALL. EXTINGUISHED WHEN RESET. GROUNDED - YES. (RESOLVED ON W/O: 1963712 TASKCARD: N/R-00004 ) ACCOMPLISHED FIM 21-53 TASK 821 AND PACK/ZONE TEMPERATURE CONTROLLER BITE PER AMM 21-61-00-700-806-002 NO FAULTS NOTED. RAN PACKSJul 31, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023071844119Control Valve · faultyWITH APU AIR AND PACKS ON, R/H PACK LIGHT ILLUMINATED WILL NOT RESET. GROUNDED - YES. PERFORMED PACK/ZONE TEMPERATURE CONTROLLER #2 BITE PROCEDURE FOUND FAULT "THIS PACK TCV" ILLUMINATED AS PER FIM 21-62 TASK 801 PERFORMED MAINTENANCE PROCEDURE FOR MEL 21-33E Jul 18, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023071444049Probe · out of tolerance#2 MAIN TANK FQIS FAILS SYSTEM TEST REF AMM 28-41-00-730-801. TANK UNITS 2, 3, AND 5 ARE OUT OF ACCEPTABLE VALUES. GROUNDED - YES. (RESOLVED ON W/O: 1960790 TASKCARD: N/R-00007 ) INITIATED MIG-2C 40-0038935. REMOVED & REPLACED #2 FUEL TANK UNITS 2, 3 & 5. ALL Jul 14, 2023 · N506AS · Boeing 737890 · Fuel Indicating SystemSDR ASAA2023071444040Stop Pin · out of adjustFA REPORTS L1 DOOR DIFFICULT TO CLOSE. GROUNDED - YES. PERFORMED FORWARD ENTRY DOOR TEST REF B737-800 AMM 52-11-00. TEST FAIL, TORQUE TO CLOSE L1 DOOR EXCEEDS LIMITS. PERFORMED GVI OF CENTERING GUIDE AND TRACK. NO DEFECTS NOTED. PERFORMED FORWARD ENTRY DOOR SYJul 14, 2023 · N506AS · Boeing 737890 · Passenger/Crew DoorsSDR ASAA2023070743932Unknown · unknownCOVER FOR EXIT LIGHT L1 DOOR BROKEN OFF. GROUNDED - YES. REINSTALLED L1 DOOR EMERGENCY EXIT LIGHT COVER AS NEEDED.Jul 7, 2023 · N506AS · Boeing 7378 · Emergency LightingSDR ASAA2023070543939Fuel Control · faultyAPU HAS REPORT OF MULTIPLE CSS ATTEMPTS WITH FAULT LIGHT AND FAULT MESSAGE 49-31016 INSTALLATION TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. UPON COMPLETION, CONTACT MAINTENANCE CONTROL AND REPORT THAT THIS TASK HAS AFFECTED APU IN-FLIGHT START CAPAJul 5, 2023 · N506AS · Boeing 737890 · APU Engine Fuel and ControlSDR ASAA2023070543897Unknown · unknownAPU FAILED TO START @ 380 FAULT LIGHT FOR 4 MINS. APU GOOD START. GROUNDED - YES. ACCOMPLISHED APU BITE TEST FOUND MAINT MSG 49-31016 OVERTEMPERTURE SHUT DOWN. APU STARTS NORMAL REF LP 60189434.Jul 5, 2023 · N506AS · Boeing 737890 · APU Engine Fuel and ControlSDR ASAA2023070143846Unknown · unknownAPU FAILED START AT FL380. APU FAULT LIGHT ILLUMINATED, THEN EXTINGUISHED AFTER FIVE MINUTES. SUCCESSFUL APU START AT FL 320 45 MINUTES AFTER FIRST ATTEMPT. GROUNDED - YES. PER CARL SEAMC, COLD SOAK START SUCCESSFUL. THIS CLEARS MEL49-99E.Jul 1, 2023 · N506AS · Boeing 737890 · APU Start/Ignition SystemSDR ASAA2023062543782Unknown · unknownFAULT CODE 73-11282 EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE. SHORT TIME FAULT. ENG #2. GROUNDED - YES. INTERROGATED FMC CDU #2 ENG AND NO FAULTS FOUND AT THIS TIMECLEARS PLT C/N 26001506 JEFF NOTIFIED.Jun 25, 2023 · N506AS · Boeing 737890 · Fuel Controlling SystemSDR ASAA2023062543668Modulating Valve · faultyR/H PACK LIGHT ILLUMINATED ON GROUND, PACKS OFF. GROUNDED - YES. BITE CHECK FLAGS RH PACK TCV. REMOVED & REPLACED RH TCV REF B737-800 AMM 21-51-10. OPS CHECK & LEAK CHECK GOOD.Jun 25, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023062143678Unknown · unknownINFLIGHT LEFT CTR TANK PUMP LOW PRESSURE INDICATION WITH 2500 LBS IN CTR TANK. GROUNDED - YES. ACCOMPLISHED FUEL BOOST PUMP OPERATIONAL TEST REF AMM 28-22-41-710-801 SYSTEM OPS CHECKS NORMAL... GROUND VERIFICATIONS CHECKS GOOD.Jun 21, 2023 · N506AS · Boeing 737890 · Aircraft Fuel Distribution SystemSDR ASAA2023061943704Motor · faulted#1 LEFT CENTER PUMP LOW PRESSURE. GROUNDED - YES. RESET CB. GOOD VOLTAGE AT PUMP CONNECTOR. ALSO VERIFIED PUMP SOUNDS WEAK COMPARED TO THE OTHERS J. FARREN 24716REMOVED AND REPLACED CTR TANK LH BOOST PUMP WITH SERVICEABLE UNIT IN REFERENCE TO AMM 28-22-41. REJun 19, 2023 · N506AS · Boeing 737890 · Fuel Boost PumpSDR ASAA2023061943646Motor · faultyLEFT CENTER FUEL PRESSURE LOW PRESSURE LIGHT ILLUMINATED AFTER TAKE OFF AND REMAIND ON WITH ABOUT 500 LBS REMAINING IN CENTER TANK. GROUNDED - YES. REMOVED AND REPLACED LEFT CENTER FUEL BOOST PUMP I.A.W. B737-800 AMM 28-22-41.Jun 19, 2023 · N506AS · Boeing 737890 · Fuel Boost PumpSDR ASAA2023052343337Unknown · unknownAFTER ENGINE START ON MC RECALL L PACK LT ILLUMINATED. EXTINGUISHED ON RESET LIST COMPLIED WITH. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 21-53 TASK 821 AND PERFORMED PACK TEMPERATURE CONTROL BITE PROCEDURE PER FIM 21-62 TASK 801 CONTROLLER FAULT FOUND ON THEMay 23, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023051643256Unknown · unknownON GROUND TAXING IN BOTH FMC WERE NOT AVAILABLE ON THE MCDUS FOR APPROX 3 MINS. GROUNDED - YES. C/W FMC RESET PER B737-800 FIM 34-61-836. OPS TEST NORMAL.May 16, 2023 · N506AS · Boeing 737890 · Navigation SystemSDR ASAA2023051543210Unknown · unknownAT GATE PACK LIGHT ILLUMINATED W/ PACK OFF. WILL NOT RESET. GROUNDED - YES. R PACK/TEMP CTRL FAULTED "TCV-THIS PACK". FAULT CLEARED RAN AC FOR 2 MINUTES. BITE CHECK ON PACK ZONE TEMP CTRL NML, REF B737-800 FIM 21-62 TASK 801.May 14, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023042943054Unknown · unknownFMC FAIL ON CAPTAIN AND FO SIDE, VTK FLAG ON CAPTAINS NAV DISPLAY. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 836. RESET AND CLOSED ALL C/B. OPS CHECK GOOD AT THIS TIME.Apr 29, 2023 · N506AS · Boeing 737890 · Flight Management Computing Hardware SystemSDR ASAA2023042743062Modulating Valve · faultedCONT CAB ZONE TEMP LIGHT ILLUMINATES ON RECALL RESETS WITH MASTER CAUTION PRESSED. GROUNDED - YES. REMOVED AND REPLACED THE CONTROL CABIN ZONE TRIM AIR MODULATING VALVE ASSY. OPS AND BITE CK NORMAL, NO LEAKAGE FOUND. REF B737-800 AMM 21-61-21.Apr 27, 2023 · N506AS · Boeing 737890 · Cabin Temperature Control SystemSDR ASAA2023040842829Valve · leakingCREW REPORTS FUEL LEAK UNDER #2 ENGINE. GROUNDED - YES. REMOVED & REPLACE HPTACC OF ENG 32 IAW B737-800 AMM 75-21-01.Apr 8, 2023 · N506AS · Boeing 737890 · Engine Cooling SystemSDR ASAA2023040642759Unknown · unknownON RECALL CONT CAB ZONE TEMP LIGHT ON, MASTER CAUTION RESET LIGHT GOES OUT. GROUNDED - YES. ACCOMPLISHED PZTC BITE AND HAD "FLT DECK TCV" FAULT ON PREV FLIGHT. FAULT CLEARED AND OPS TEST PASS REF B737-800 FIM 21-62 TASK 801.Apr 6, 2023 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023010941471Indicator · no test#1 REFUEL QTY INDICATOR INTMT STUCK IN TEST. GROUNDED - YES. CONFIRMED INDICATOR STUCK IN TEST ONCE TEST SWITCH IS ENGAGED. REMOVED & REPLACED #1 TANK WING REFUEL QTY INDICATOR PER B737-800 AMM TASKS 28-41-61-000-801 & 28-41-61-000-801 & 28-41-61-400-801.Jan 9, 2023 · N506AS · Boeing 737890 · Fuel Quantity IndicatorSDR ASAA2023010841489Sensor · dirtyCONT CAB ZONE TEMP ILLUMINATES ON RECALL - EXTINGUISHES ON RESET. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 21-61 TASK 861. FOUND CABIN TEMP SENSOR & FILTER COVERED IN DUST & DEBRIS. CLEANED CABIN TEMP SENSOR & CHANGED FILTER. BITE TEST OF BOTH PZTC'S GOOD. OPJan 8, 2023 · N506AS · Boeing 737890 · Cabin Temperature Control SystemSDR ASAA2023010241392Fuel Heater · leaking#2 ENG SERVO FUEL HEATER LEAKING. GROUNDED - YES. REMOVED #2 ENG SERVO FUEL HEATER REF B737-800 AMM 73-11-01. INSTALLED #2 ENG SERVO FUEL HEATER REF AMM 73-11-07. .Jan 2, 2023 · N506AS · Boeing 737890 · Fuel HeaterSDR ASAA2022123041359Ecu · faultedPERFORMED TASK CARD 78273000, ENG #1 HAS FAULT CODE 73-21281 EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE. SHORT TIME. GROUNDED - YES. INTERROGATE FMC FOR FAULTS, FAULT MSG 73-21281 LOGGED ON FLT LEG # 0,1,2 AND 4. ACCOMPLISHED B737-800 FIM 73-27 TDec 30, 2022 · N506AS · Boeing 737890 · Fuel Controlling SystemSDR ASAA2022122971286Indicator · inoperativeFUELER REPORTED NR 1 TANK GAUGE ON WING INOPERATIVE. GROUNDED - YES. VERIFIED - INDICATOR SHOWS "FAIL". IAW AMM 28-41-61, REMOVED & REPLACED NR 1 TANK REFUEL QTY INDICATOR.Dec 27, 2022 · N506AS · Boeing 737890 · Fuel Quantity IndicatorSDR ASAA2022122951282Wire Harness · damaged#1 DRIVE LIGHT ILLUMINATED DURING CRUISE AT FL350 ACCOMPLISHED ASSOCIATED ASA QRH CHECKLIST. GROUNDED - YES. REF. B737-800 WDM 24-11-11-2 PG2 SHT 1 RMVD DP1206 AT IDG AND FOUND PIN 6 SHORTED TO CONNECTOR SHELL OF DP1206. WIRE OPENS WHEN HARNESS FLEXED A CERTAIDec 25, 2022 · N506AS · Boeing 737890 · Electrical Power System WiringSDR ASAA2022122721251Hook · wornREF T/C #SBCFM56-7B-72-1074-1 ON WING BORESCOPE INSPECTION OF METALLIC, HYBRID VSV SYSTEM FOR ROTOR TO STATOR CONTACT. FOUND STAGE 3 J-HOOK AT 6 OCLOCK WORN COMPLETELY THROUGH. GROUNDED - YES. ACCOMPLISHED ENGINE REMOVAL OF ESN # 897-310 REF T/C # 7847000. DEFDec 22, 2022 · N506AS · Boeing 737890 · Turbine Engine Compressor SectionSDR ASAA2022121841214Sensor · faultedDURING ACCOMPLISHMENT OF ASA TC 78273000 IN W/O 1934974 FOUND FAULT 79-31341, OIL PRESS SIGNAL DISAGREE (SHORT TERM) AND 79-11091 ENGINE OIL PRESSURE SIGNAL OUT OF RANGE (SHORT TERM) ON ENG #1. REF ASA L/P 60382685. GROUNDED - YES. INTERROGATE FMC FOR ENGINE #Dec 18, 2022 · N506AS · Boeing 737890 · Engine Oil Indicating SystemSDR ASAA2022120141003Door · slowIN FLIGHT, LEFT PACK LIGHT. RAN CHECK LIST AND LITE RESET W/TRIP RESET. LIGHT CAME BACK ON 10 MIN LATER, RAN SAME CHECK LIST & LITE STAYED OUT. GROUNDED - YES. S1051 FLAP SWITCH CHECKS GOOD CONNECTOR D46040 PIN M TO GND DURING SEVERAL FLAPS UP AND NOT UP CYCLENov 30, 2022 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2022113041000Door · slowIN FLIGHT, LEFT PACK LIGHT. RAN CHECK LIST AND LITE RESET W/TRIP RESET. LIGHT CAME BACK ON 10 MIN LATER, RAN SAME CHECK LIST & LITE STAYED OUT. GROUNDED - YES. S1051 FLAP SWITCH CHECKS GOOD CONNECTOR D46040 PIN M TO GND DURING SEVERAL FLAPS UP AND NOT UP CYCLENov 30, 2022 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2022113040998A/C Pack · faultedDURING CLIMB LT A/C PACK LIGHT ILLUMINATED. RAN THE QH PACK CHECKLIST PAT LT EXTINGUISHED AFTER TRIP RESET WITHIN A COUPLE MINUTES PACK LT ILLUMINATED AGAIN . RAN PACK QRH CHECKLIST AGAIN. TRIP RESET EXTINGUISHED THE LT. CHECKED LEFT PACK TEMP. STARTED RISING Nov 30, 2022 · N506AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2022111940845Trim System · fault messageMACH TRIM FAIL ILLUMINATED ON RECALL CANCELS WITH RESET. GROUNDED - YES. PERFORMED B737-800 FIM 22-11 TASK 801 FOUND FAULT MSG 22-11334 ON LEG 2, RESET 2 EACH C/B'S. RAN MACH TRIM SYSTEM TEST MULTIPLE TIMES, ALL TEST PASSED. ALSO REF FIM 22-16 TASK 835, TEST PNov 19, 2022 · N506AS · Boeing 737890 · Autopilot SystemSDR ASAA2022110740671Spacer · debondedWHILE DOING FAN BLADE LUBE ASA T/C # 78472010, FOUND # 1 ENG FAN BLADE SPACERS # 12,18,21 AND 22 ARE DISBONDED. GROUNDED - YES. REMOVED & REPLACED #1 ENG FAN BLADE SPACERS #'S 12,18,21, & 22 PER ASA T/C 78472010.Nov 7, 2022 · N506AS · Boeing 737890 · Turbine Engine Air Inlet SectionSDR ASAA2022102840519Actuator · faultedLH PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL. LIGHT EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED LH RAM AIR INLET ACTUATOR IAW B737-800 AMM 21-51-21.Oct 28, 2022 · N506AS · Boeing 737890 · Cabin Cooling System
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