N434AS

Service difficulty reports · 176

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 = 'N434AS' 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 ASAA2026013064061Door · no discrepancyCATERING REPORTS L2 DOOR HARD TO OPEN. GROUNDED - YES. OPENED AND CLOSED THE L2 DOOR 2X REF AMM 52-13-00. OPS NORMAL.Jan 30, 2026 · N434AS · Boeing 737990ER · Passenger/Crew DoorsSDR ASAA2026012563975Door · malfunctionedCREW REPORTED L2 DOOR WILL NOT OPEN. GROUNDED - YES. INITIALLY FOUND DIFFICULT TO OPEN FROM INSIDE & OUTSIDE. DOOR WILL UNLOCK BUT WOULD NOT CLOCK TO ROTATE. ONCE ABLE TO OPEN DOOR INSPECTEDD AND FOUND NO DEFECTS. OPS THE DOOR SEVERAL TIMES. OBSERVED CORRECJan 25, 2026 · N434AS · Boeing 737990ER · Passenger/Crew DoorsSDR ASAA2025122363304Seal · detachedL2 DOOR CATCHING ON SEAL. DOOR WOULD NOT OPEN. GROUNDED - YES. SECURED L2 DOOR INTERIOR SEAL. NOT PRESSURIZATION SEAL WITH NON-FLAMMABLE TAPE TO PREVENT DOOR FROM CATCHING ON SEAL. CHECKED AND RELEASED PER "INT" REF MEL 25-10E. REMOVED AND REPLACED L2 DOOR SEADec 23, 2025 · N434AS · Boeing 737990ER · Service DoorsSDR ASAA2025101361575Battery Pack · inoperativeEMERGENCY LIGHTS FAILED OPS CHECK. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PPACK M267 IAW B737-900 AMM 33-31-06-960-805 OP CHECKS GOOD IAW B737-900 AMM 33-51-00-710-801.Oct 13, 2025 · N434AS · Boeing 737990ER · Emergency LightingSDR ASAA2025100161416Floorbeam · crackedSTA 540 RBL 0 PANEL BREAK IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED PANEL BREAK IAW B737-900ER SRM 51-40-02-0G-0.Oct 1, 2025 · N434AS · Boeing 737990ER · Fuselage Main, Floor BeamSDR ASAA2025092661317Rail · corrodedFWD CARGO AFT BULKHEAD R/H SUPPORT CORRODED RBL 30 TO 35 STA 500L. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-30-08-1A-1. REMVOED AND REPLACED SUPPORT RAIL ON FWD CARGO AFT BULKHEAD RH BTW RBL 30 TO 35 STA 500L IAW B737-900ESep 26, 2025 · N434AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2025092261316Floorbeam · crackedSTA 540, LBL 0 PANEL BREAK IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED PANEL BREAK ON STA 540 LBL 0, IAW B737-900 SRM 51-40-02-0G-0.Sep 22, 2025 · N434AS · Boeing 737990ER · Fuselage Main, Floor BeamSDR ASAA2025091961622Baffle · crackedFWD CARGO BAFFLE CLIP CRACKED FWD SIDE STA 500K RBL 30. GROUNDED - YES. REMOVED AND REPLACED BAFFLE CLIP IAW B737-900ER SRM 51-40-02-0G-0.Sep 19, 2025 · N434AS · Boeing 737990ER · Fuselage Miscellaneous StructureSDR ASAA2025091961320Transition Panel · corrodedAFT CARGO TRANSITION CORRODED STA 787 TO 727B RBL 30. GROUNDED - YES. REMOVED CORROSION TRANSITION FOUND TO BE OUT OF LIITS, REMVOED AND REPLACED TRANSITION IAW B7370900ER SRM 53-00-53-2R-5 W=1" O= .040 R= 0 L= 2" D= .040.Sep 19, 2025 · N434AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2025091961319Rail · corrodedFWD CARGO AFT BULKHEAD LOWER SUPPORT CORRODED STA 500L RBL 30 TO LBL 30. GROUNDED - YES. REMOVED CORROSION ON LOWER RAIL FOUND TO BE OUT OF LIMITS, REMOVED AND REPLACED LOWER RAIL SUPPORT ON FWD CARGO AFT BULKHEAD AT STA 500L, RBL30 TO LBL 30 IAW B737-900ER SRSep 19, 2025 · N434AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2025091961318Transition Panel · corrodedAFT CARGO TRANSITION CORRODED STA 787 TO 727B LBL 30. GROUNDED - YES. REMOVED CORROSION TRANSITION FOUND TO BE OUT OF LIMITS, REMOVED AND REPLACED TRANSTITION PANEL IAW B737-900ER SRM 53-00-53-2R-5W= 1" O= .040 L= 2" R= 0 D= .040.Sep 19, 2025 · N434AS · Boeing 737990ER · Fuselage Miscellaneous StructureSDR ASAA2025091961184Web · corrodedAFT CARGO SCUFF PLATE WEB CORRODED STA 847 TO 787 RBL 40. GROUNDED - YES. REMOVED CORROSION ON AFT CARGO DOOR SCUFF PLATE WEB AND FOUND TO BE OUT OF LIITS IAW B737-900ER SRM 53-60-15-1A-1 AND REMOVED AND REPLACED IAW B737-900ER SRM 51-40-02-0G-0 W= 2" O= .050"Sep 19, 2025 · N434AS · Boeing 737990ER · Fuselage Miscellaneous StructureSDR ASAA2025091961183Shield · corrodedAFT CARGO FWD SHEILD CORRODED STA 787 TO 767 RBL 30. GROUNDED - YES. REMOVED AND REPLACED AFT CARGO FWD SHIELD AT STA 787 TO 767 RBL 30 IAW BOEING 737-900ER SRM 51-40-02-0G-0. W= 1" O= .050" R= .041" L= 1" D= .009".Sep 19, 2025 · N434AS · Boeing 737990ER · Fuselage Miscellaneous StructureSDR ASAA2025091961112Shield · corrodedAFT CARGO AFT SHIELD CORRODED STA 847 TO 867 RBL 30. GROUNDED - YES. REMOVED CORROSION FOUND TO BE OUT LIMITS REMOVED AND REPLACED SHIELD IAW B737-900ER SRM 51-40-02-0G-0 & 51-40-05-0G-0W= 2 O= 0.050 R= 0.044 L= 1 D 0.006.Sep 19, 2025 · N434AS · Boeing 737990ER · Fuselage Miscellaneous StructureSDR ASAA2025091662033Power Supply · inoperativeFCF INDUCTION FLIGHT DISC 12 - AFTER RIGHT SECTION OF EMERGENCY EXIT LIGHTS INOP ROW 17FED THROUGHJ ROW 29FED. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY BATTERY PACK RIGHT SECTIN AT EXIT LIGHTS ROW 17FED THROUGH 29FED IAW B737-900 AMM 33-51-06-960-805. PESep 16, 2025 · N434AS · Boeing 737990ER · Emergency LightingSDR ASAA2025052858311Power Supply · inoperativeLH OVERWING & 2 LH MID CABIN AISLE EMERGENCY LIGHTS INOP. GROUNDED - YES. REMOVED + REPLACED L/H SIDE EMERGENCY EXIT POWER SUPPLY BY 10ABC IAW AMM 33-51-06. OPS CHECK GOOD FOR L/H OVERWING & 2 LH MID CABIN AISLE EMERGENCY LIGHTS.May 28, 2025 · N434AS · Boeing 737990ER · Emergency LightingSDR ASAA2025020655794Door · bindingFA'S REPORT L2 DOOR IS DIFFICULT TO OPERATE. GROUNDED - YES. PERFORMED GVI OF DOOR AND SURROUND NO DEFECTS NOTED. COMPLETED AFT ENTRY DOOR SYSTEM TEST AMM 52-13-00-700-805 BOTH OPEN AND CLOSE TORQUES ARE WITHIN LIMITS AND THE DOOR OPERATES SMOOTH, HOLD OPEN LAFeb 6, 2025 · N434AS · Boeing 737990ER · Passenger/Crew DoorsSDR ASAA2025010755129Battery Pack · dischargedFOUND AFT F/A EMERGENCY LIGHT SWITCH IN THE "ON" POSITION. GROUNDED - YES. CHARGED BATTERY PACKS REF AMM 33-51-06 FOUND BATTERY PACK M1670 DEAD. REPLACED M1670 BATTERY PACK. EMERGENCY LIGHTS OPS NORMAL REF FIM 33-50 TASK 801.Jan 7, 2025 · N434AS · Boeing 737990ER · Emergency LightingSDR ASAA2023103045917Power Supply · malfunctionedEMERGENCY LIGHTING ABOVE ROW 25DEF AND 29DEF FLICKERED ON/OFF DURING FLIGHT. GROUNDED - YES. COULD NOT VERIFY FLICKERING. ALL INTERIOR EMERGENCY LTS STAY ON WHEN SELECTED ON FOR 15+MINS. NOTICED TEST SW ON M2627 EMERGENCY LIGHT BATTERY PACK FOR 25DEF AND 29DEFOct 30, 2023 · N434AS · Boeing 737990ER · Emergency LightingSDR ASAA2023101945782Unknown · unknownEMERGENCY AISLE LIGHT ABOVE OVERHEAD BINS AT SEATS 25 AND 29, RIGHT SIDE, ARE FLASHING CONTINUOUSLY. GROUNDED - YES. VERIFIED EMERGENCY LIGHT SECURED CHECK OKAY REF AMM 33-51-03. SEAMC PHILIP NOTIFIED.Oct 19, 2023 · N434AS · Boeing 737990ER · Emergency LightingSDR ASAA2023101945744Unknown · unknownROW 25 + 29 AC RIGHT OVERHD EMGNCY LIGHTS FLASHING INTERMINTTENTLY. GROUNDED - YES. OPS CHECKED EMERGENCY LIGHT SYS AMM 33-51-00-710-801 CHECKED GOOD.Oct 19, 2023 · N434AS · Boeing 737990ER · Emergency LightingSDR ASAA2023092545364Power Supply · inoperativeBATTERY WON'T HOLD CHARGE AND CHARGER WON'T CHARGE BATTERY GROUNDED - YES. REPLACED POWER SUPPLY S/N 129757.Sep 25, 2023 · N434AS · Boeing 737990ER · Emergency LightingSDR ASAA2023092245311Power Supply · inoperativeEMERGENCY LIGHTS AT L1 DOOR AND INSIDE CABIN NOT WORKING. GROUNDED - YES. REPLACED ALL APPLICABLE EMERGENCY LIGHT POWER SUPPLY OPS CHECK GOOD IAW 737-900 AMM 33-51-06-960-806 AND 33-51-00-720-801.Sep 22, 2023 · N434AS · Boeing 737990ER · Emergency LightingSDR ASAA2023082044668Outflow Valve · noiseON DESCENT FROM 18,000 TO LANDING, FA'S NOTED L2 DOOR SQUEAL, FA COMMUNICATIONS WERE NOT EFFECTED AND NO AIRCRAFT PRESSURIZATION ISSUES NOTED. GROUNDED - YES. REF EA 900ER-21EA-25825 REV. 01. APPLIED MULTIPLE BEADS OF SEALANT OF RANDOM SIZE AND SHAPE JUST PASTAug 20, 2023 · N434AS · Boeing 737990ER · Pressure Regulator/Outflow ValveSDR ASAA2023080544505Line · leaking#2 ENGINE OIL TREND DATA SHOWS OIL CONSUMPTION TO GREATER THAN EXPECTED.(#PRI2) ENGINE POWER RUN REQUIRED. GROUNDED - YES. (RESOLVED ON W/O: 1964524 TASKCARD: N/R-00003 ) ACCOMPLISHED STEPS 1-4 OF THIS TSR. FOUND OIL LEAKING FROM AFT SUMP DRAIN LINE, THERE IS Aug 5, 2023 · N434AS · Boeing 737990ER · Turbine Engine Oil SystemSDR ASAA2023080544449Unknown · unknownREFUEL PANEL INDICATORS SHOWING BLANK. GROUNDED - YES. (RESOLVED ON W/O: 1964524 TASKCARD: N/R-00002 ) COULD NOT DUPLICATE FOUND POWER CONTROL SWITCH TARGET OUT OF LIMIT. ADJUSTED TARGET TO IN LIMIT RANGE AND TESTS GOOD PER AMM 28-21-81-400-801. THIS CLEARS MEAug 5, 2023 · N434AS · Boeing 737990ER · Fuel Indicating SystemSDR ASAA2023072544232Switch · faultyREF. T/C 78273000 #1 ENG. HAS FAULT MESSAGE 73-303111 " THE START SWITCH SIGNAL AND ARINC BUS DATA DISAGREE" SHORT TIME FAULT. GROUNDED - YES. (RESOLVED ON W/O: 1963379 TASKCARD: N/R-00001 ) FAULT PRESENT ON EVERY LEG INCLUDING LEG 0, REPLACED #1 START SWITCH Jul 25, 2023 · N434AS · Boeing 737990ER · Engine Starting SystemSDR ASAA2023072044145Outflow Valve · leakingWHISTLE OF AIR/SQEALING SOUND COMING FROM L2 DOOR: STARTED AT TAKEOFF & STOPPED AT LANDING. NO ABNORMAL LIGHTS OR INDICATIONS FROM FLIGHT DECK. DIDNT EFFECT A/C PRESSURIZATION OR COMMUNICATIONS. GROUNDED - YES. INSPECTED L2 DOOR SEALS. NO DEFECTS NOTED AT THISJul 20, 2023 · N434AS · Boeing 737990ER · Pressure Regulator/Outflow ValveSDR ASAA2023071644075Unknown · unknownFUELING PANEL HAS NO POWER, CYCLED A/C POWER WITH NO CHANGE. GROUNDED - YES. PERFORMED OP CHECK OF REFUELING PANEL, CHECKED GOOD REF AMM 28-41-01 (C/B WAS RESET PRIOR TO CHECK) ALL INDICATIONS NORMAL AT THIS TIME. REFUELING PANEL AREA LIGHT ALSO WORKS AS NEEDEJul 16, 2023 · N434AS · Boeing 737990ER · Fuel Indicating SystemSDR ASAA2023071544035Unknown · unknownPER TC 78273000 INTERROGATION OF FMC CDU ENGINE #2 FAULT SHOWS FAULT CODE 75-30452, VBV POSITION SIGNALS DISAGREE ON FLIGHT LEG 3 SHORT TIME FAULT. GROUNDED - YES. (RESOLVED ON W/O: 1961619 TASKCARD: N/R-00001 ) PERFORMED T/C 78273000 NO FAULT DETECTED IN RECEJul 15, 2023 · N434AS · Boeing 737990ER · Compressor Bleed ControlSDR ASAA2023052943388Guide Vane · nickedFOUND #2 ENG OGV AT 12 O'CLOCK HAS A NICK ON THE LEADING EDGE. GROUNDED - YES. REPLACED #2 ENG OGV AT 12 O'CLOCK POSITION IAW B737-900 AMM 72-23-01.May 29, 2023 · N434AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2023050943188Unknown · unknownSATCOM LOCK-UP GROUNDED - YES. QRH SATCOM LOCK-UP PROCEDURE PERFORMED.May 9, 2023 · N434AS · Boeing 737990ER · HF Communications SystemSDR ASAA2023050143126Switch · defectiveHF/SAT XFER SWITCH WILL NOT GO INTO SAT ON HF/SAT #1. GROUNDED - YES. REMOVED & REPLACED HF/SAT TRANSFER PANEL, B737-900 AMM REF 23-15-00/401.May 1, 2023 · N434AS · Boeing 737990ER · Communications SystemSDR ASAA2023031742419Unknown · unknown#6 BLADE ON THE #1 ENGINE HAS A KNICK. GROUNDED - YES. ACCOMPLISHED FOD INSPECTION #1 ENGINE REF B737-900 AMM 05-52-00/601 AND ACCOMPLISHED GVI OF THE #1 ENGINE FAN BLADE #6 FOUND NICK OUT OF LIMITS REF B737-900 AMM 72-21-02-200-801-F00 IN AREA "I" OF THE BLADMar 17, 2023 · N434AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2023031242316Charger · arcedREF ASA LP 60513046, REF B737-900 AMM 24-31-21 ATTEMPTED REPLACEMENT OF MAIN BATTERY CHARGER(M5) BP FROM SWA, FOUND BURN MARKS ON FLOOR PANEL BELOW AUX BATTERY CHARGER AND DAMAGE TO AUX BATT CHARGER. GROUNDED - YES. REF B737-900 AMM 24-31-31, B737-900 WDM 24-3Mar 12, 2023 · N434AS · Boeing 737990ER · DC Generating SystemSDR ASAA2023030942292Battery · faultyAFTER START ELEC LIGHT ILLUMINATED ON OVHD PANEL AND BATTERY DISCHARGE LIGHT ILLUMINATED ON SHUTDOWN. GROUNDED - YES. REMOVED AND REPLACED MAIN BATTERY CHARGER REF B737-900 AMM 24-31-21/401.Mar 9, 2023 · N434AS · Boeing 737990ER · DC Generating SystemSDR ASAA2023030742227Panel · noneMODE CONTROL PANEL HEADING WINDOW HAS DISTORTION NEAR CENTER OF DISPLAY. GROUNDED - YES. REMOVED AND REPLACED MCP. REF B737-900 AMM 22-11-34Mar 7, 2023 · N434AS · Boeing 737990ER · Autopilot SystemSDR ASAA2023022642080Unknown · unknownLEFT FMC FAILED THAN CAME BACK AFTER A MINUTE. GROUNDED - YES. LEFT FMC RECOVERED, RESET BOTH FMC'S PER B737-900 FIM 34-61 TASK 836NO FAULTS NOTED.Feb 26, 2023 · N434AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2023010741457Spacer · debondedWHILE ACCOMPLISHING T/C 78472010, #2 ENG FAN LUBE, 6 EA. SPACERS FOUND DISBONDED. GROUNDED - YES. REMOVED & REPLACED SPACERS (6,7,10, 15, 20, & 21) PER T/C 78472010.Jan 7, 2023 · N434AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2022123141335Window · faultedLT SIDE WINDOW OVERHEAT LIGHT CAME ON CYCLED AND CAME BACK ON. GROUNDED - YES. REMOVED AND REPLACED L2 WINDOW REF B737-900 AMM 56-12-11-400-801, OPS AND LEAK CHECK GOOD, REF AMM 30-41-00-710-801 AND 05-51-91-790-801. ORIG SUBMISSON DATE: 1/4/2023Dec 31, 2022 · N434AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2022122941310Wire · faultedAFTER ROTATION, THE MASTER CAUTION AND L SIDE (L20) WINDOW OVERHEAT ILLUMINATED. WE RAN THE QRH AND THE CAUTION EXTINGUISHED. 30 SECS LATER, CAUTION ILLUMINATED AGAIN & TURNED OFF ASSOCIATED WINDOW HEAT SWITCH AS DIRECTED BY QRH & CONTINUED THE FLIGHT. GROUNDEDec 29, 2022 · N434AS · Boeing 737990ER · Ice/Rain Protection System WiringSDR ASAA2022121041100Spacer · wornWHILE DOING T/C # 78472010 FAN BLADE LUBE. FOUND #1 ENG SPACERS AT #12,17,18,20,21,23, AND 24 POSITION WORN. GROUNDED - YES. REMOVED AND REPLACED #1 ENG SPACERS AT #12,17,18,20,21,23 AND 24 POSITION PER TASKCARD 78472010.Dec 10, 2022 · N434AS · Boeing 737990ER · Turbine Engine Compressor SectionSDR ASAA2022111340755Spacer · debondedWHILE ACCOMPLISHING T/C #78472010, FAN BLADE LUBRICATION, FOUND ELASTOMER ON SPACERS # 1,2,4,7,8,9,13,16 AND 19 DISBONDED. REQUIRE REPLACEMENT. GROUNDED - YES. REMOVED AND REPLACED NO. 1 ENG FAN BLADE SPACERS # 1,2,4,7,8,9,13,16 AND 19 REF TASK CARD #78472010.Nov 13, 2022 · N434AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2022101340311Pressure Panel · faultedAUTO FAIL LIGHT ILLUMINATED ON PRESSURIZATION PANEL ALONG WITH ALTN LIGHT, MOVED SELECTOR TO ALTN PER QRH. PRESSURIZATION NORMAL. GROUNDED - YES. ON DEFERRAL.Oct 13, 2022 · N434AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2022091039914Flow Sensor · faultyCLIMBING TO FL350 PRESSURE CABIN CLIMB RATE WOULD CLIMB AND DESCEND BACK & FOURTH RAPIDLY TO A RATE OF 500FT TO 2,000 FT PROBLEM SEEMED TO INCREASE WITH FULL POWER CLIMBING TO FL370 AT LOWER ALTITUDES AROUND FL250 RATE WOULD PERIODICALLY CHANGE AT A RATE OF 20Sep 10, 2022 · N434AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2022090839907Control Valve · failedAT CRUISE FL380, NUMEROUS PRESSURIZATION BUMPS EXPERIENCED OVER 1-2 HOUR PERIOD. CABIN CLIMB INDICATOR WOULD FLUCTUATE BETWEEN 500-700 FPM CLIMB AND 500-1000 FPM DESCENT. CABIN DIFFERENTIAL AT APPROXIMATELY 8.3-8.4 (BOTTOM/BELOW ORANGE ARC), CABIN ALTITUDE APPSep 8, 2022 · N434AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2022082139601Control Valve · leakingAT FL350 CABIN RATE OF CLIMB CONSTANTLY CLIMBS / DESCENDS +/- 500 FPM WITH OCCASIONAL SPIKE OF 1700 FPM. N1 STABLE AT 89.2, CABIN DIFF AT 7.8, CABIN ALT 7000FT. DUCT PRESS 45 PSI. NO CHANGE WHEN ALTN SELECTED. CABIN RATE SEEMS TO FOLLOW SLIGHT CHANGE IN RIGHT Aug 21, 2022 · N434AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2022081139473Software · out of dateNAV DATA BASE OUT OF DATE. GROUNDED - YES. ACCOMPLISHED ASA TASK CARD N1920483, NAV DATABASE IS NOW CURRENT.Aug 11, 2022 · N434AS · Boeing 737990ER · Flight Management Computing Software SystemSDR ASAA2022080239322Mcu · failedNO SAT PROMPT ON CA SIDE MCDU MENU. APPEARS AS NORMAL ON FO SIDE ALONG WITH ALL SELECTABLE SAT OPTIONS. GROUNDED - YES. PREFORMED SATCOM COMMUNICATION SYSTEM CHECK FOR MCDU ON CA SIDE IAW B737-900 AMM 23-15-00-730-801. TEST PASSED, SAT PROMPT SHOWN ON MCDU (CAAug 2, 2022 · N434AS · Boeing 737990ER · HF Communications SystemSDR ASAA2022062638854Eec · fault messageDURING ACCOMPLISHMENT OF T/C78273000 #2 ENG HAS SHORT TIME FAULT MSG 73-21282. THIS IS A 50 FLT HOUR SHORT TIME FAULT. GROUNDED - YES. PERFORMED B737-900 FIM 73-27 TASK 805 PER FIM REPLACED EEC IAW B737-900 AMM 73-21-60-400-801-F00 AND AMM 73-21-60-000-801-F00Jun 26, 2022 · N434AS · Boeing 737990ER · Fuel Controlling System
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