N494AS

Service difficulty reports · 142

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 = 'N494AS' 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 ASAA2018030323735Warning Light · false activationAFTER ENGINE START AND PUSHING RECALL, RECEIVED A MASTER CAUTION, AIRCOND, AND CONTROL CABIN ZONE TEMP" LIGHTS. LIGHTS EXTINGUISHED AFTER PUSHING MASTER CAUTION RESET. ACFT GROUNDED. CHECKED AND CONFIRMED ZONE TEMP CONTROL CABIN LIGHT RESET AND IAW AMM 21-6Mar 3, 2018 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2018022023640Warning Light · false activationELECTRICAL LIGHT ILLUMINATED ON ELECTRICAL PANEL. ACFT GROUNDED. PERFORMED LIGHT MESSAGE BITE PROCEDURE IAW FIM 24-31 TASK 801. FOUND SPCU FAILED MESSAGE. WOULD NOT RESET. CYCLED SPCU NORMAL & STBY CIRCUIT BREAKER ON SPCU FRONT PANEL, AND CLEARED ELEC LIGFeb 20, 2018 · N494AS · Boeing 737990ER · Central WarningSDR ASAA2017123123036Control Valve · malfunctionedRT PACK LIGHT ILLUMINATED ON RECALL PRIOR TO DESCENT, EXTINGUISHED WITH MASTER CAUTION RESET IAW QRH. ACFT GROUNDED. REPLACED THE RT PACK TEMP CONTROL VALVE ASSY IAW AMM 21-51-10, OPS GOOD. BITES GOOD. NO FAULTS FOUND.Dec 31, 2017 · N494AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017121722924Computer · malfunctionedWHILE ACCOMPLISHING LLM UPDATE BITE LIBRARY TEST FOR AILERON FAILED. 2 FAULTS AIL POS FAIL & R SENSOR EXC INV CHANNEL B. REPEATED TEST, NO HELP. CHANNEL A TEST PASSED. ACFT GROUNDED. TROUBLESHOT IAW FIM 22-12 TASK 813. NO MAINTENANCE MESSAGES SHOWN AFTER DFCDec 17, 2017 · N494AS · Boeing 737990ER · Autopilot SystemSDR ASAA2017120422784Display · unknownAT CRUISE BRIEF VTK ON CAPT NAV DISPLAY. FMS RECOVERED BEFORE WE COULD RUN CHECKLIST. GROUNDED - YES. T/S FMC BITE TEST B737-900 FIM 34-61 TASK 801. OPS TEST GOOD. NO FAULTS, NO FLAGS, NO HISTORY 60 DAYS.Dec 4, 2017 · N494AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2017111422559Filter · dirtyALL CABIN TEMP ZONES VERY DIFFICULT TO CONTROL. FLUCTUATES FROM VERY COLD TO VERY HOT. ACFT GROUNDED. FOUND CABIN TEMPERATURE SENSORS FWD AND AFT VERY DIRTY. REMOVED AND REPLACED THE TEMP SENSOR FILTERS. CLEANED CABIN TEMP SENSOR FORWARD, AFT, AND FLIGHT DECNov 14, 2017 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2017111222547Transceiver · failedHF-1 CONTROL PANEL INDICATES FAILED. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 HF TRANSCEIVER. OPS CHECK GOOD IAW AMM 23-11-21.Nov 12, 2017 · N494AS · Boeing 737990ER · HF Communications SystemSDR ASAA2017101722238Warning Light · false activationON RECALL, CONTROL CABINE ZONE TEMP LIGHT ILLUMINATED. EXTINGUISHED WITH RESET. ACFT GROUNDED. ACCOMPLISHED A BITE CHECK IAW AMM 21-61-00, OPS CHECKED NORMAL, CONTROL CABIN SELECTOR FAULT NOT ACTIVE.Oct 17, 2017 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2017090121797Transceiver · failedWEATHER RADAR INOP IN AUTO AND MANUAL MODE. IN MANUAL MODE, THERE ARE NO RETURNS AT ALL, NOT EVEN GROUND RETURNS. IN AUTO MODE, RADAR ALWAYS SHOWS RETURNS AT THE 1 O'CLOCK POSITION ONLY. GROUNDED - YES. ITEM PLACED ON MEL 34-15D. REMOVED, REPLACED, AND TESTED Sep 1, 2017 · N494AS · Boeing 737990ER · Weather Radar SystemSDR ASAA2017083121800Transceiver · failedWX RADAR IN AUTO MODE REPORTS WX THAT DOES NOT EXIST. GROUNDED - YES. REMOVED, REPLACED, AND TESTED WXR R/T IAW AMM 34-43-41-400-801. TESTS PASS. THIS CLEARS MEL 34-15D.Aug 31, 2017 · N494AS · Boeing 737990ER · Weather Radar SystemSDR ASAA2017060921023Shim · wornNR 1 ENGINE HAD 24 FAN BLADE SHIMS WORN. ACFT GROUNDED. REPLACED THE SHIMS IAW T/C 78472002.Jun 9, 2017 · N494AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2017060921018Insulation · tornNR 1 ENGINE ANTI ICE DUCT INSULATION TORN & DAMAGED AT THE 12 O`CLOCK STRUT AREA ON FAN FRAME. ACFT GROUNDED. REMOVED & REPLACED THE NR 1 ENGINE ANTI-ICE DUCT, OPS CHECKED OK IAW MM 71-00-02.Jun 9, 2017 · N494AS · Boeing 737990ER · Air Intake Anti/De-Ice SystemSDR ASAA2017060921010Fire Detector · frayedNR 1 ENGINE, CORE, RT SIDE, FIRELOOP GROUND LUG FRAYED AT 3 OCLOCK POSITION. ACFT GROUNDED. NR 1 FIRE LOOP REMOVED AND REPLACED IAW AMM 26-11-00. OPERATIONAL CHECKED GOOD.Jun 9, 2017 · N494AS · Boeing 737990ER · Detection SystemSDR ASAA2017050520652Eec · faultedFMC CDU FOR ENGINE FAULTED, NR 2 ENGINE POWER CHANNEL B CIRCUIT BREAKER KEEPS TRIPPING (P6-2 D7). ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE EEC IAW AMM 73-21-60-400-801-F00. ACCOMPLISHED FADEC SYSTEM TEST, PASSED. GROUND VERIFICATION SUCCESSFUMay 5, 2017 · N494AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2017050320615Circuit Breaker · poppedALTN PWR CHAN B C/B POPPED. GROUNDED - YES. PLANE LOST POWER AT GATE. WHEN RAMP HOOKED POWER BACK UP CREW CALLED AND SAID C/B WAS OUT. RESET C/B ALTN PWR CHAN B, REF AMM 20-60-01-860-801.May 3, 2017 · N494AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2017031720196Display · malfunctionedFLIGHT DIRECTOR FLAG ON CAPTAIN'S PRIMARY DISPLAY. ACFT GROUNDED. CYCLED GROUND POWER AND FLIGHT DIRECTOR DISPLAYS NORMALLY. PERFORMED DFCS BITE GROUP 12 FOR FD AND ALL TESTS PASSED IAW FIM 22-11 TASK 801.Mar 17, 2017 · N494AS · Boeing 737990ER · Autopilot SystemSDR ASAA2017022319922Controller · faultedAFTER PUSHBACK & ENGINE START. DURING RECALL, THE LEFT PACK AND CONTROL CABIN ZONE TEMP & AFT CABIN ZONE TEMP LIGHTS ILLUMINATED AMBER. RETURN TO GATE. ACFT GROUNDED. RIGHT PFTC SHOWS MAINTENANCE MESSAGE 21-51154 (ARINC FAULT). LEFT PFTC DOES NOT POWER UP. RFeb 23, 2017 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2017022019879Warning Light · false activationAFTER ENGINE START, DURING RECALL, LEFT PACK AND CONTROL CABIN ZONE TEMP AND AFT CABIN ZONE TEMP LIGHTS ILLUMINATED. THIS OCCURRED THREE TIMES. ON THE FOURTH OCCURANCE, MASTER CAUTION RECALL, THE RIGHT PACK LIGHT ONLY ILLUMINATED. THE NEXT RECALL HAD NO LIGHTSFeb 20, 2017 · N494AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017021919850Warning Light · false activationLEFT PACK LIGHT ILLUMINATED ON THE GROUND, DURING MASTER CAUTION RECALL. LIGHT EXTINGUISHED AFTER PRESSING TRIP RESET. ACFT GROUNDED. BITE OF LEFT AND RIGHT PACK FLOW TEMPERATURE CONTROLLERS IAW FIM 21-62 TASK 801 SHOWED NO FAULTS.Feb 19, 2017 · N494AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017021919846Cabin Pressure · malfunctionedDURING CRUISE, THE OUTFLOW VALVE FLUCTUATED FROM +1500 FEET PER MINUTE TO -1000 FEET PER MINUTE NUMEROUS TIMES THROUGHOUT FLIGHT. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT. BITE OF NR 1 AND 2 CABIN PRESSURE CONTROLLERS IAW FIM 21-31 TASK 801, SHOWED NO FAULT Feb 19, 2017 · N494AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2016121119009Warning System · false activationDURING CRUISE AT 370 , FMC AMBER ANNUNCIATOR ILLUMINATED, CWS R ILLUMINATED AND VTK APPEARED ON FO SIDE WAS MASTER PILOT. WHILE ACCOMPLISHING CHECKLIST, ANOMALY RESET TO NORMAL OPS. TOTAL DURATION OF ANOMALY WAS APPROXIMATELY 1 MINUTE. CONTINUED TO DESTINATIONDec 11, 2016 · N494AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2016112418800Warning Light · illuminatedCONTROL CABIN TEMP ILLUMINATED WHEN PUSHING MASTER RECALL EXTINGUISHES WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED PFTC NR 1, & 2 BITE IAW AMM 21-61-00-740-801-002. BOTH TESTS PASS, NO FAULTS. NO HISTORY 90 DAYS.Nov 24, 2016 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2016102918505Fmc · malfunctionedDURING TAXI IN AFTER LANDING, VTK IN CAPTAIN'S NAV DISPLAY FMC DISAPPEARED FROM MCDU THEN WOULD CYCLE ON AND OFF WITH VTK. ACFT GROUNDED. CYCLED POWER ON ACFT. PERFORMED FMC SYSTEM OPS TEST IAW AMM 34-61-00-710-801. GROUND VERIFICATION GOOD, OK FOR SERVICE.Oct 29, 2016 · N494AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2016101718381Display · malfunctionedDURING CRUISE, VTK ON CAPTAIN'S NAV DISPLAY MAP WENT AWAY. FMC PROMPT MISSING FROM BOTH CDU'S. QRH FOLLOWED AND PUT BOTH FMC BOTH ON RIGHT. DUAL FMC RESTORED. ACFT GROUNDED. PERFORMED BITE OF NR 1 FMC, NO FAULTS NOTED IAW FIM 34-60-00.Oct 17, 2016 · N494AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2016092018089Fmc · malfunctionedCLIMBING THROUGH FL340, CAPTAIN'S FMC FAILED, VTK DISPLAYED. AFTER APPROXIMATELY 30 SECONDS AIRCRAFT RESOLVED ISSUE ON ITS OWN. OPS NORMAL. ACFT GROUNDED. TROUBLESHOT IAW FIM 34-61 TASK 836, ALL TESTS PASS WITH NO DEFECTS. CHECKED GOOD FOR SERVICE.Sep 20, 2016 · N494AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2016091618048Warning System · false activationWHEN STARTING NR 1 ENGINE SPAR VALVE CLOSED, LIGHT ILLUMINATED BRIGHT AND REMAINED ILLUMINATED. ACFT GROUNDED. FOUND FUEL SPAR VALVE NR 1 ENGINE, P6-3, B4 OPEN. PERFORMED CB RESET PROCEDURE, REF AMM 20-60-01. NO DEFECTS NOTED. VALVE CONNECTOR GVI, NO DEFESep 16, 2016 · N494AS · Boeing 737990ER · Fuel Indicating SystemSDR ASAA2016081617727Fmc · malfunctionedIN CRUISE FLIGHT AT FL 350 FIRST OFFICERS FLIGHT DIRECTOR PITCH 342 DISAPEARED FROM VIEW. THEN HAD INTERMITTANT MAP ANNUNCIATOR ON F/O NAV DISPLAY AND EVENTUALLY AN INTERMITTANT VTK ANNUNCIATOR ON F/O ND AND SINGLE FMC OPERATION ON FMC CDU SCRATCHPAD. IAW CHEAug 16, 2016 · N494AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2016080517616Hf Comm · malfunctionedHF 2 SAYS FAIL, FAIL. ACFT GROUNDED. ACCOMPLISHED FIM 23-11, TASK 802. FAULT CLEARED AND NO HISTORY. BITE TEST NORMAL REF FIM 23-11, TASK 801. GROUND VERIFICATION TEST GOOD.Aug 5, 2016 · N494AS · Boeing 737990ER · HF Communications SystemSDR ASAA2016061917079Warning System · false activationELECTRIC LIGHT ILLUMINATED AFTER ENGINE START. ACFT GROUNDED. P5-13 PANEL FAULTS, SPCU INOPERATIVE, PERFORMED CYCLING OF 2 CB'S, REF FIM 24-34, TASK 802, FAULT CLEARS. NO HISTORY LAST 30 DAYS, ACFT OK FOR CONTINUED SERVICE.Jun 19, 2016 · N494AS · Boeing 737990ER · DC Indicating SystemSDR ASAA2016052616857Warning Light · false activationZONE TEMP, CONTROL CABIN ILLUMINATED ON MASTER RECALL ON PUSH BACK. ACFT GROUNDED. ZONE TEMP CONTROL CABIN LIGHT NO LONGER ILLUMINATED IAW FIM 21-62, TASK 801. NO EXISTING FAULTS AND GROUND TEST PASSED, MEL CLEARED.May 26, 2016 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2016052116798Warning Light · false activationCONTROLLER CABIN ZONE TEMP AMBER LIGHT CAME ON AFTER RECALL. AFTER ENGINE START LIGHT GOES OUT ON RESET. ACFT GROUNDED. ACCOMPLISHED PACK TEMPERATURE CONTROL BITE IAW FIM 21-62, TASK 801. NO DEFECTS NOTED. SUSPECT NUISANCE FAULT REF FTD 737NG-FTD-21-16001.May 21, 2016 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2016051816788Sump · leakingWHILE ACCOMPLISHING TASK CARD POWER PL-79 FCD-12377-1, FOUND EVIDENCE OF LEAK ON THE NR 1 ENGINE TURBINE FRAME AFT SUMP. ACFT GROUNDED. ACCOMPLISHED T/C POWERPLANT-79FCD-12377-4: CFM56-7BE TURBINE REAR FRAME AFT SUMP FCD: INSPECTION AT NR 1 ENGINE. OPS LEAK May 18, 2016 · N494AS · Boeing 737990ER · Engine Oil Distribution (Airframe Furnished)SDR ASAA2016051516737Warning Light · false activationON TAXI OUT PUSH RECALL AND GET BOTH PACK LIGHTS AND ALL 3 ZONE TEMP LIGHTS. THEY RESET OFF WHEN MASTER CAUTION IS RESET. ACFT GROUNDED. BITE TESTED BOTH CONTROLLERS REF FIM 21-62, TASK 801, NO CURRENT FAULTS FOUND. PERFORMED GROUND SYSTEM TEST, NO FAULT FMay 15, 2016 · N494AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2016050216594Warning Light · false activationZONE TEMP ON CONTOL CABIN ILLUMINATED DURING AFTER START. ACFT GROUNDED. PERFORMED PFTC BITE ON BOTH NR 1 AND NR 2 PFTC IAW FIM 21-62, TASK 801. NO FAULTS ON EITHER CONTROLLER. R & R CONTROL CABIN SENSOR FILTER IAW AMM 21-61-06. NO FAULTS.May 2, 2016 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2016041516408Control Valve · failedAFTER PUSHBACK ON RECALL LT PACK LIGHT, MC AND AIR COND LIGHT ILLUMINATED. RESET AND ALL LIGHT EXTINGUISHED. ACFT GROUNDED. PERFORMED BITE CHECK, FOUND TEMP CONTROL VALVE ISSUE FAULT CODE 21-51266 AND 21-51267. REMOVED LT TEMP CONTROL VALVE, REF AMM 21-51-Apr 15, 2016 · N494AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2016033116193Warning Light · false activationON MASTER RECALL GOT ZONE TEMP CONTROL CABIN. ACFT GROUNDED. ZONE TEMP CONTROL CABIN LIGHT NO LONGER ILLUMINATED IAW FIM 21-62, TASK 801. NO EXISTING FAULTS AND GROUND TEST PASSED.Mar 31, 2016 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2016032516083Warning Light · false activationRIGHT PACK LIGHT ILLUMINATED DURING RECALL, WENT OUT WHEN MASTER CAUTION PRESSED. ACFT GROUNDED. PERFORMED LT AND RT PFTC BITE TEST IAW AMM TASK 21-61-00-740-801-002, ALL TESTS PASSED WITHOUT EXISTING FAULTS. BOTH PACKS OPS CHECKED NORMAL.Mar 25, 2016 · N494AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2016031915994Warning Light · false activationLEFT PACK ILLUMINATED ON RECALL,THE LIGHT EXTINGUISHES WHEN MASTER CAUTION SYS IS RESET. ACFT GROUNDED. PACK LIGHT EXTINGUISHED ON RESTART AND REMAINED EXTINGUISHED REMAINDER OF FLIGHT, DOES NOT ILLUMINATE ON RECALL.ACCOMPLISHED PACK CONTROLLER BITE AND ALL Mar 19, 2016 · N494AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2016030215728Warning Message · false indicationAT T/O, BRAKE RELEASE MAIN TANKS 1 AND 2, EACH INDICATED 8.0. AT 1000' AGL THE MAIN TANK NR 1 INDICATED 6.6 AND THE AMBER IMBALANCE WAS ILLUMINATED. DURING CLIMB THE IMBALANCE DECREASED FROM 1400 LBS TO 900 LBS. THE QRH WAS CONSULTED FOR IMBALANCE AND FUEL LMar 2, 2016 · N494AS · Boeing 737990ER · Fuel Indicating SystemSDR ASAA2016030115709Warning Light · illuminatedLEFT AND RIGHT PACK LIGHT ON WHEN RECALL PRESSED AND ONLY WITH ALL TEMP SELECTORS IN OFF POSITION. ACFT GROUNDED. ACCOMPLISHED BITE PROCEDURE IAW FIM 21-62, TASK 801, NO EXISTING FAULTS NOTED IAW EA 900ER-21EA-16652. ACFT IS OK TO RETURN TO SERVICE WITH NO Mar 1, 2016 · N494AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2016022715665Warning Light · false activationAFTER PUSHBACK AND ENGINE START, ZONE TEMP, LIGHT ILLUMINATED ON RECALL FOR CONTROL CABIN. PERFORMED QRH PROCEDURE, LIGHT EXTINGUISHES ON MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED BITE OF LT AND RT PACK FLOW TEMP CONTROLLERS IAW FIM 21-62, TASK 801. NOFeb 27, 2016 · N494AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2016021415443Warning Light · false activationCONTROL CABIN ZONE TEMP LIGHT ON RECALL. ACFT GROUNDED. ACCOMPLISHED FIM TASK 21-62-801 PACK TEMP CONTROL BITE. NO ACTIVE FAULTS, GROUND TESTS PASS. GROUND VERIFICATION SUCCESSFUL.Feb 14, 2016 · N494AS · Boeing 737990ER · Cabin Temperature Control System
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