N493AS

Service difficulty reports · 213

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 = 'N493AS' 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 ASAA2022101240272Outflow Valve · faultyWHILE OPERATING IN ALTN MODE FOR PRESSURIZATION UNDER ASA MEL 21-14C THE AUTO FAIL LIGHT ILLUMINATED DURING CLIMBOUT AT FL240. OPERATED REMAINDER OF FLIGHT UNDER MAN MODE. PRESSURIZATION WAS FLUCTUATING AND HARD TO CONTROL. GROUNDED - YES. REMOVED AFT OUTFLOW Oct 12, 2022 · N493AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2022101140271Outflow Valve · faultyCLIMBING OUT OF KTUS APPROX FL270 AUTH FAIL LIGHT ON PRESS. PANEL ILLUMINATED. CABIN PRESS NORMAL. ACCOMPLISHED QRH IN ALTN MODE AUTO FAIL LIGHT EXTINGUISHED. CABIN PRESS NORMAL. OPERATED IN ALTN. GROUNDED - YES. REMOVED AFT OUTFLOW VALVE ASSY AS REQ. REF B737Oct 11, 2022 · N493AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2022092440050Ifs · faultyAUTOLAND WITH HGS BACKUP FAILED; AIRCRAFT LANDED APPROXIMATELY 40 FEET FROM RUNWAY EDGE IN 20 DEGREE RIGHT TURN; AUTOBRAKE DISARM LIGHT ILLUMINATED IMMEDIATELY UPON TOUCHDOWN. GROUNDED - YES. REPLACED IFSAU REF B737-900 AMM 22-11-37. (ASA LP 60396359)Sep 24, 2022 · N493AS · Boeing 737990ER · Autopilot SystemSDR ASAA2022090939912Satcom · missingSATCOM PROMPT MISSING FROM BOTH MCDU. GROUNDED - YES. CYCLED POWER TO SATCOM SYSTEM & PROMPT RETURNED REF B737-900 AMM 23-15-00/501.Sep 9, 2022 · N493AS · Boeing 737990ER · HF Communications SystemSDR ASAA2022090639825Panel · loosePER ASA T/C 78472000 #2 ENG INLET AND FAN BLADES INSP #1 & #2 FAN DUCT PANELS ARE LOOSE. GROUNDED - YES. TIGHTENEND #1 & #2 FAN DUCT PANELS OK FOR SERVICE.Sep 6, 2022 · N493AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2022081339545Control Valve · faultyRIGHT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL. EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REPLACED RH PACK TEMPERATURE CONTROL VALVE REF B737-900 AMM 21-51-10.Aug 13, 2022 · N493AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2022080539383Autopilot Sys · faultyON CLIMB OUT THROUGH NFL280 VNAV DISCONNECTED. WE RECEIVED "VNAV INVALID PERF" MESSAGE ON FMC. AFTER RE-ENTERING THE COST INDEX VNAV RETURNED TO NORMAL. GROUNDED - YES. ACCOMPLISHED DFCS BITE REF B737-900 FIM 22-11 TASK 801 CNL A & B FAULTED LAST LEG 22-11822.Aug 5, 2022 · N493AS · Boeing 737990ER · Autopilot SystemSDR ASAA2022080439479Hmu · faulty#2 ENG VALVE CLOSED LIGHT BRIGHT BLUE. GROUNDED - YES. REMOVED AND REPLACED #2 ENG HMU REF ASA T/C N8473000 AND N8473001.Aug 4, 2022 · N493AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2022080139300Satcom · lockedSATCOM LOCK-UP GROUNDED - YES. ASA QRH PROCEDURE PERFORMED SUCCESSFULLY.Aug 1, 2022 · N493AS · Boeing 737990ER · HF Communications SystemSDR ASAA2022071539087Satcom · inoperativeSATCOM INOP GROUNDED - YES. RESTORED VIA ASA SATCOM LOCK-UP QRH PROCEDURE.Jul 15, 2022 · N493AS · Boeing 737990ER · HF Communications SystemSDR ASAA2022070338954Modulating Valve · faultyON RECALL ZONE TEMP LIGHT ILLUMINATES FOR CONT CAB LIGHT EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. CONFIRMED FAULT, R/H PACK/ZONE TEMP CONTROLLER SHOWS HARD FAIL FLIGHT DECK TCV (V143). REMOVED & REPLACED SAME REF B737-900 AMM 21-61-21. GROUND FUJul 3, 2022 · N493AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2022060738580Valve · faultedCONT CAB ZONE TEMP ON WITH M/C RECALL IT DOES EXTINGUISH WHEN RESET. GROUNDED - YES. RELEASED PER 21-21G FLIGHT DECK PRIMARY TEMP INOP. #2 ZONE TEMP CONT LOGGED FLT DECK TRIM VALVE FAULT, FAULT CLEARED & CKS GOOD PER B737-900 AMM 21-61-00. GND VERIFICATION SUCJun 7, 2022 · N493AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2022051838388Sensor · faultyON CLIMBOUT PASSING FL 180, RT SIDE WINDOW HEAT LIGHT OVERHEAT ILLUMINATED, LIGHT EXTINGUSHED W/ WINDOW HEAT SW OFF. WAITED 5 MIN. PASSING FL 300, TURN SW ON - OVERHEAT LIGHT STILL ILLUMINATED. SW OFF FOR REMAINDER OF FLIGHT. GROUNDED - YES. ON DEFERRAL.May 18, 2022 · N493AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2022051738350Sensor · failedWINDOW OVERHEAT ON RIGHT SIDE WINDOW, FOLLOWED QRH. OVERHEAT LIGHT REMAINED EXTINGUISHED. GROUNDED - YES. WHCU SHOWS MULTIPLE WINDOW SENSOR FAULTS. SWAPPED R2 SENSOR TO SPARE. CLEARED WHCU HISTORY, BITE TEST GOOD.May 17, 2022 · N493AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2022051538355Valve · incorrectRIGHT ENGINE FUEL VALVE IN INCORRECT POSITION WITH START LEVERS IN OFF POSITION. GROUNDED - YES. PERFORMED ENG VALVE CLOSED FAULT ISOLATION IAW B737-900 AMM 73-06 TASK 804. R/H ENGINE AND HPSOV LIGHTS OPERATE CORRECTLY.May 15, 2022 · N493AS · Boeing 737990ER · Engine Fuel DistributionSDR ASAA2022051438302Window · overheatedWINDOW HEAT RIGHT SIDE OVERHEAT LIGHT ILLUMINATED IN FLIGHT RAN QRH AND LIGHT STAYED EXTINGUISHED. GROUNDED - YES. WINDOW HEAT OPS CK NORMAL REF B737-900 AMM 30-41-00.May 14, 2022 · N493AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2022042738145Unknown · unknownWHEN TOGA PRESSED FOR TAKEOFF AUTOTHROTTLES DISENGAGED. TRIED TWICE BOTH TIMES AUTOTHROTTLES DISENGAGED. PUSHED THROTTLES UP MANUALLY TO CORRECT TAKEOFF POWER SETTING. REENGAGED AUTOTHROTTLES AND THEY WORKED PROPERLY. GROUNDED - YES. ACCOMPLISHED AUTOTHROTTLE Apr 27, 2022 · N493AS · Boeing 737990ER · Auto Throttle SystemSDR ASAA2022041037949Idg · faultyNO 2 DRIVE LIGHT ILLUMINATED ON LANDING ROLL OUT. GROUNDED - YES. REMOVED AND REPLACED #2 IDG PER B737-900ER AMM 24-11-11. OPS LEAK CHECK GOOD.Apr 10, 2022 · N493AS · Boeing 737990ER · Alternator-Generator DriveSDR ASAA2022033037856None · noneSAT NOT DISPLAYED ON CDU MENU PAGE. COMPLETED SATCOM LOCKUP QRH. SAT RESTORED. GROUNDED - YES. VERIFIED SATCOM IS DISPLAYED ON CDU REF B737-900 FIM 23-15 TASK 801.Mar 30, 2022 · N493AS · Boeing 737990ER · HF Communications SystemSDR ASAA2022032837818Unknown · unknownSATCOM LOCK-UP GROUNDED - YES. PERFORMED RESET PROCEDURES PER QRH 5-4, SUCCESSFUL.Mar 28, 2022 · N493AS · Boeing 737990ER · HF Communications SystemSDR ASAA2022032337761Light · inoperativeRT SIDE WINDOW OVERHEAT ILLUMINATED. FOLLOWED QRH LIGHT EXTINGUISHED. GROUNDED - YES. ACCOMP WINDOW HEAT OVERHEAT TEST, TEST PASS REF B737-900 30-41-11-860-004.Mar 23, 2022 · N493AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2022022437544Magnetic Plug · damagedENG#1 STARTER MAGNETIC PLUG DAMAGE. GROUNDED - YES. REMOVED AND REPLACED ENG#1 STARTER MAGNETIC PLUG PER B737-900 AMM 80-11-01. OK FOR SVC.Feb 24, 2022 · N493AS · Boeing 737990ER · Engine CrankingSDR ASAA2021122336985Unknown · unknownSATCOM LOCK-UP. GROUNDED - YES. ACCOMPLISHED SATCOM LOCK-UP QRH RESET PROCEDURE. SUCCESSFUL.Dec 23, 2021 · N493AS · Boeing 737990ER · HF Communications SystemSDR ASAA2021121636936None · noneFA REPORTS EMERGENCY LIGHT AIRCRAFT LEFT ROW 27 WOULD ILLUMINATE INTERMITTENTLY. GROUNDED - YES. FOUND POWER SUPPLY FOR 27 EMER LIGHT TO HAVE DAMAGED TEST MA29858 SWITCH REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY ASSY REF B737-900 AMM 33-51-06 OPS CHECKDec 16, 2021 · N493AS · Boeing 737990ER · Emergency LightingSDR ASAA2021121336887Unknown · unknownMACH AS WARNING #2 WONT TEST. GROUNDED - YES. PERFORMED B737-900 FIM 22-11 TASK 842 /RESET TEST OK , A/C OK FOR SERVICE.Dec 13, 2021 · N493AS · Boeing 737990ER · Autopilot SystemSDR ASAA2021120136770Battery · inoperativeWHILE PERFORMING EMERGENCY BATTERY RESTORATION THE FOLLOWING LIGHT FIALED R2 DOOR OVERHEAD EMERGENCY LIGHT. GROUNDED - YES. REMOVED, REPLACED AND OPS CHECK GOOD EMERGENCY BATTERY PACK AT R2 DOOR EMERGENCY EXIT LIGHT IAW B737-900 AMM 33-51-06-960-805 STEP 4E(1)Dec 1, 2021 · N493AS · Boeing 737990ER · Emergency LightingSDR ASAA2021120136769Battery · inoperativeWHILE PERFORMING EMERGENCY LIGHT RESTORATION THE FOLLOWING LIGHT FIALED R1 DOOR OVERHEAD. GROUNDED - YES. REMOVED AND REPLACED R1 DOOR OVERHEAD BATTERY PACK, OP'S CHECK GOOD IAW B737-900 AMM 33-51-06-960-805 STEPS 4.E.(1), (2), (3), (6) AND (4), (5), (6).Dec 1, 2021 · N493AS · Boeing 737990ER · Emergency LightingSDR ASAA2021111536786None · corrodedAFT CARGO COMPARTMENT LH TRANSITION PNL AT STA 727B-807 IS CORRODED UPPER AND LOWER SURFACE. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2 REPAIRED TRANSITION PANEL IAW B737-900ER SRM 53-00-53-2Nov 15, 2021 · N493AS · Boeing 737990ER · Cargo/Baggage DoorsSDR ASAA2021111536785None · corrodedAFT CARGO COMPARTMENT RH TRANSITION PANEL AT STA 727B-767 IS CORRODED ON UPPER AND LOWER SURFACES. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS FOUND TRANSITION PANEL TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2 REPAIRED TRANSITION PANEL IAW B7Nov 15, 2021 · N493AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2021111536762Angle · corrodedAFT CARGO COMPARTMENT FWD DOOR SHIELD ANGLE IS CORRODED. GROUNDED - YES. REMOVED SHIELD ANGLE, REMOVED CORROSION FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-60-15-1A-1, INSTALLED NEW ANGLE IAW B737-900ER SRM 51-40-02-0G-0 PARA 7DW .6 O .050 R .028 L .9 D .Nov 15, 2021 · N493AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2021111536761Shield · corrodedAFT CARGO COMPARTMENT FWD DOOR SHIELD IS CORRODED ON THE UPPER AND LOWER SURFACE. GROUNDED - YES. FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-60-15-1A-1. REMOVED & REPLACED FWD DOOR SHIELD IAW B737-900 SRM 51-40-02-0G-0W=1." O=.050 R=.029 L=5.0" D=.021.Nov 15, 2021 · N493AS · Boeing 737990ER · Cargo/Baggage DoorsSDR ASAA2021111536642Beam · corrodedSTA 986 FLOOR BEAM HAS CORROSION AT LBL 54. GROUNDED - YES. REMOVED CORROSION AT STA 986 FLOOR BEAM AT LBL 54 AND FOUND TO BE OUT OF LIMITS IAW 737-900ER SRM 53-70-51-1A-1 4F REPAIRED BEAM IAW 737-900ER SRM 53-70-51-2R-6 FIG 205W=1.0 O=.150 R=.121 L=1.0 D=.029Nov 15, 2021 · N493AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2021111436783Floor Support · crackedFLOOR SUPPORT AT STA 540 RBL 0 IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED FLOOR SUPPORT AT STA 540 RBL 0 IAW B737-900ER AMM 51-40-02-0G-0.Nov 14, 2021 · N493AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2021111336760Channel · corrodedFWD CARGO R/H TRANSITION PANEL RBL-21 CORRODED BETWEEN STA 500G TO STA 500F. GROUNDED - YES. BLENDED CORROSION ON TRANSITION PANEL REMAINING MATERIAL FOUND OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2, REPAIRED TRANSITION PANEL SECTION FROM STA 500E + 10.5 TNov 13, 2021 · N493AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2021110736522Unknown · unknownLEFT PACK LIGHT ON RECALL PRIOR TO DESCENT. GROUNDED - YES. ACCOMPLISHED BITE OF BOTH PZTC REF B737-900 FIM 21-62 TASK 801 LEFT ON BIT FAULTED EXIT SRADA, REST OF BIT GREEN GO. RIGHT PZTC NO FAULTS. RESET LEFT PZTC RAN PACKS AND RE-ACCOMPLISHED BITE WITH NO FANov 7, 2021 · N493AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2021102936448Unknown · unknownHF #2 DISPLAYS FAIL IN ACTIVE & STANDBY. GROUNDED - YES. (RESOLVED ON W/O: 1889997 TASKCARD: N/R-00001 ) UNABLE TO DUPLICATE DEFECT. HF OPERATIONAL TEST PER B737-900 MM 23-11-00-710-801 SHOWED NO TRANSCEIVER FAULTS. ACCOMPLISHED HF SYSTEM TEST PER MM 23-11-00-Oct 29, 2021 · N493AS · Boeing 737990ER · HF Communications SystemSDR ASAA2021101436315Unknown · unknownSATCOM LOCKUP. GROUNDED - YES. ACCOMPLISHED QRH OPS NORMAL.Oct 14, 2021 · N493AS · Boeing 737990ER · HF Communications SystemSDR ASAA2021092836101Unknown · unknownSAT NOT DISPLAYED ON MCDU. FOLLOWED ORH PROCEDURE FOR SATCOM LOCK UP. GROUNDED - YES. AFTER RESETTING CB- SAT DISPLAY PROMPT REAPPEARED SYSTEM NORMAL.Sep 28, 2021 · N493AS · Boeing 737990ER · HF Communications SystemSDR ASAA2021073035594Fmc · intermittentRH FMC CONTINUALLY DROPS OFFLINE. GROUNDED - YES. CONFIRMED DEFECT. RESET 2 CB FOR FMCS #2, CYCLING POWER HAD NO EFFECT. REMOVED AND REPLACED RH/#2 FMC IAW B737-900 AMM 34-61-02-000/400-801. PERFORMED PERF FACTORS ADJ IAW AMM 34-61-00-800-801, OPS TEST IAW AMMJul 30, 2021 · N493AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2021072835549Spinner · worn#1 ENG SN 862726 INLET SPINNER CONE COATING WORN. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE INLET SPINNER FRONT CONE PER TC 78472010.Jul 28, 2021 · N493AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2021071135537Spacer · wornGE REPORTS #1 ENGINE ESN 862726 IS EXPERIENCING IN TAKEOFF AND CRUISE FAN VIBRATION. CORE VIBRATION HAS REMAIN STABLE. GROUNDED - YES. ACCOMPLISHED #1 ENGINE FAN LUBE PER TC 78472010. REPLACED 20 SPACERS WITH NEW FROM STOCK. PERFORMED FAN TRIM BALANCE PER B73Jul 11, 2021 · N493AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR 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 737990ER · Cabin Temperature Control SystemSDR ASAA2021050434758Switch · inoperative#2 ENG VALVE CLOSED LIGHT BRIGHT AFTER SHUTDOWN. GROUNDED - YES. (RESOLVED ON W/O: 1868637 TASKCARD: N/R-00003 ) REPLACED #2 ENGINE HPSOV SWITCH PER B737-900 AMM 73-21-09/401. TWO C/B'S PULLED AND RESET. AIRCRAFT RETURNED TO NORMAL CONFIGURATION. ALL TESTS AREMay 4, 2021 · N493AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2021042534679Valve · inoperativeON MC RECALL - FLT DECK ZONE TEMP ILLUMINATED . RESET ON MC RECALL. TEMP SELECTOR OPERATED NORMALLY. GROUNDED - YES. PERFORMED BITE PROCEDURE REF B737-900 AMM 21-51-00, FLT DECK TRIM VALVE LT ILLUMINATED ON BOTH CONTROLLERS. REMOVED AND REPLACED FLT DECK ZONE Apr 25, 2021 · N493AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2021040534514Modulating Valve · faultyCONT CABIN ZONE TEMP ON RECALL. GROUNDED - YES. REMOVED AND REPLACED TRIM AIR MODULATING VALVE OPS CHECK GOOD. REF B737-900 AMM 21-61-21/401Apr 5, 2021 · N493AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2021031934328Warning Light · false activationCONT CAB ZONE TEMP ON RECALL AFTER START. GROUNDED - YES. C/W B737-900 FIM 21-62 TASK 801 & 21-62 TASK 833. PACK TEMP CONTROL BITE TEST ON ZONE TEMP CONTROL #2 - FLT DECK TRIM VALVE RED LT ILLUMINATED. FLT DECK TRIM VALVE RED LT CLEARED ON RESET. NO FURTHER ACMar 19, 2021 · N493AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2020092533224Satcom · lockedSATCOM LOCKUP. GROUNDED-YES. ACCOMPLISHED RESET PROCEDURE, PER QRH. SATCOM RESTORED NORMAL.Sep 25, 2020 · N493AS · Boeing 737990ER · Communications SystemSDR ASAA2020082423062Satcom · lockedSATCOM LOCK-UP, GROUNDED - YES. ACCOMPLISHED QRH CHECKLIST, SATCOM RECOVERED.Aug 22, 2020 · N493AS · Boeing 737990ER · Communications SystemSDR ASAA2020071332892Start Valve · faultySTART VALVE OPEN INDICATION STAYS ILLUMINATED AFTER NR 2 ENGINE START. GROUNDED - YES. REMOVED & REPLACED ENG NR 2 START VALVE PER AMM 80-11-03. OPS CHECKS GOOD.Jul 10, 2020 · N493AS · Boeing 737990ER · Engine Start Valves/ControlsSDR ASAA2020070632865Warning System · false activationUPON ACTIVATION WX RADAR FOR DEPARTURE "PWS FAIL" AND "WXR FAIL ANT" RAN WX RADAR TEST, NORMAL REACTIVATED WX RADAR SAME INDICATIONS. GROUNDED - YES. ACCOMPLISHED WEATHER RADAR BITE REF FIM 34-43 TASK 801, NO FAULTS FOUND. ACCOMPLISHED WXR RADAR ANT FAULT IJul 2, 2020 · N493AS · Boeing 737990ER · Weather Radar System
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