N421UW

Service difficulty reports · 19

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 = 'N421UW' 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 AALA202610053739Switch · defectiveAIRCRAFT IN BASE MAINTENANCE: RIGHT OVERWING EMERGENCY RESEVOIR FAILED INDICATION TEST -MAINTENANCE DETERMINED THE MICROSWITCH ON THE RESERVOIR BOTTLE WAS DEFECTIVE PROHIBITING THE OPERATIONAL TEST FROM WORKING ON THE CIDS PANEL - MAINTENANCE REPLACED THE RESEOct 2, 2026 · N421UW · Airbus A321253NX · Escape SlideSDR AALA202609289000Guide · debondedAIRCRAFT IN BASE MAINTENANCE: L3 DOOR SLIDE ENCLOSURE TUBE GUIDE DISBONDED. MAINTENANCE REPLACED THE SLIDE ASSEMBLY PER JOB CARD 26C15053012Sep 27, 2026 · N421UW · Airbus A321253NX · Escape SlideSDR AALA202609280327Guide · debondedAIRCRAFT IN BASE MAINTENANCE: R3 SLIDE ENCLOSURE TUBE GUIDE DISBONDED - MAINTENANCE REINSTALLED TUBE GUIDE ON THE RIGHT AFT EMERGENCY DOOR SLIDE PER CMM 25-66-54Sep 25, 2026 · N421UW · Airbus A321253NX · Escape SlideSDR AALA202609218858Shear Plate · crackedAIRCRAFT IN BASE MAINTENANCE: CRACKED AFT CABIN FLOOR SHEAR PLATE BETWEEN FR 67 AND FR 70 AT S23L - REPLACED SHEAR PLATE PER EO 5324Y014-001Sep 19, 2026 · N421UW · Airbus A321253NX · Fuselage Miscellaneous StructureSDR AALA202609218701Shear Plate · crackedAIRCRAFT IN BASE MAINTENANCE: CRACKED AFT CABIN FLOOR SHEAR PLATE BETWEEN FR 67 AND FR 70 AT S23R - REPLACED SHEAR PLATE PER EO 5324Y014-001Sep 19, 2026 · N421UW · Airbus A321253NX · Fuselage Miscellaneous StructureSDR AALA202609180040Shear Plate · crackedAIRCRAFT IN BASE MAINTENANCE: CRACKED AFT CABIN FLOOR LATERAL SHEAR PLATE BETWEEN FR 68 AND FR 70 AT S23L - REPLACED SHEAR PLATE PER EO 5324Y014Sep 15, 2026 · N421UW · Airbus A321253NX · Fuselage Miscellaneous StructureSDR AALA202609187482Shear Plate · crackedAIRCRAFT IN BASE MAINTENANCE: CRACKED AFT CABIN FLOOR LATERAL SHEAR PLATE BETWEEN FR 68 AND FR 70 AT S23R - REPLACED SHEAR PLATE PER EO 5324Y014Sep 15, 2026 · N421UW · Airbus A321253NX · Fuselage Miscellaneous StructureSDR AALA202607067176Wire · brokenAIRCRAFT WAS NOT GROUNDED: SEAT ROW 25ABC EMERGENCY LIGHT INOPERATIVE. MAINTENANCE FOUND BROKEN WIRE, REPAIRED BROKEN WIRE PER ESPM 20-43-11 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM WITH NO ISSUES NOTED.Jul 2, 2026 · N421UW · Airbus A321253NX · Light System WiringSDR AALA202508084030Smoke Detector · false indicationAIRCRAFT WAS NOT GROUNDED: INTERMITTENT SMOKE LAVATORY SMOKE ECAM ILLUMINATED DURING CRUISE FOR AFT MID LAVATORY. MAINTENANCE REPLACED LAVATORY L SMOKE DETECTOR AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 26-17-15,Aug 6, 2025 · N421UW · Airbus A321253NX · Smoke DetectionSDR AALA202506305157Actuator · faultedAIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED A CENTER RIGHT FUEL TRANSFER VALVE FAULT MESSAGE AT START OF DESCENT WITH ZERO FUEL IN ACTS. **SUPPLEMENTAL REPORT FOR AALA202506235157: MAINTENANCE REPLACED THE CENTER RIGHT FUEL TRANSFER VALVE ACTUATOR AND ACCOJun 19, 2025 · N421UW · Airbus A321253NX · Fuel Transfer ValveSDR AALA202506235157Transfer Valve · faultedAIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED A CENTER RIGHT FUEL TRANSFER VALVE FAULT MESSAGE AT START OF DESCENT WITH ZERO FUEL IN ACTS. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)Jun 19, 2025 · N421UW · Airbus A321253NX · Fuel Transfer ValveSDR AALA202504220520Girt Bar · stickingAIRCRAFT WAS NOT GROUNDED: THE L1 DOOR WAS HARD TO ARM THE SLIDE, GOT IT TO ARM. BUT INFLIGHT THE SLIDE DISARMED ITSELF. MAINTENANCE LUBRICATED THE GIRT BAR / FITTINGS AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 52-73-00.Apr 22, 2025 · N421UW · Airbus A321253NX · Emergency EquipmentSDR AALA202409199814Life Raft · unlacedAIRCRAFT WAS NOT GROUNDED: PER ETOPS PER-DEPARTURE CHECK ON CABIN GVI, FOUND EMERGENCY RAFT SECURITY LACING AND PIN UNDONE. REMOVED AND REPLACED RAFT.Sep 15, 2024 · N421UW · Airbus A321253NX · Life RaftSDR AALA202406038294Flashlight · unsecureAIRCRAFT WAS NOT GROUNDED: 3L JUMPSEAT FLASLIGHT DOES NOT GIVE RED BLINKING INDICATION. SEATED UNSECURED EMERGENCY FLASHLIGHT ONTO CRADLE AT 3L JUMP SEAT PER AMM 25-65-00.Jun 2, 2024 · N421UW · Airbus A321253NX · Emergency EquipmentSDR AALA202308313133Pipe · leakingAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRFT RETURNED TO BOS. DUIRNG CLIMBOUT GREEN HYDRAULIC SYSTEM RESEVOIR LOW LEVEL ECAM MESSAGE ILLUMINATED. THE AIRCRAFT LANDED AT BOS WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND FORWARD PRESSSURE SUCTIAug 29, 2023 · N421UW · Airbus A321253NX · Hydraulic System, MainSDR AALA202302145733Life Raft · damagedAIRCRAFT WAS NOT GROUNDED: LIFE RAFT OVER ROW 26DEF STITCHING SEPARATED ON COVER. MAINTENANCE REPLACED LIFE RAFT PER AMM 25-66-41.Feb 11, 2023 · N421UW · Airbus A321253NX · Life RaftSDR AALA202201315148Light · detachedAIRCRAFT WAS NOT GROUNDED: PASSENGER SEAT ROW 28 ABC EMERGENCY EXIT LITE BROKEN OFF. REPLACED EMERGENCY EXIT LIGHT SHROUD AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-19.Jan 28, 2022 · N421UW · Airbus A321253NX · Emergency LightingSDR AALA202106169002Gust Lock · lack of lubeAIRCRAFT WAS NOT GROUNDED: REAR CABIN DOOR 4L DOOR OPEN LATCH DOES NOT ENGAGE. LUBRICATED LEFT AFT DOOR GUST LOCK LATCH AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 52-13-00.Jun 15, 2021 · N421UW · Airbus A321253NX · Passenger/Crew DoorsSDR AALA202103289006Smoke Detector · false indicationAIRCRAFT WAS NOT GROUNDED: MOMENTARY SMOKE LAVATORY A SMOKE INDICATION.TROUBLESHOOT REFERENCE TSM 26-17-00-810-804-A AND FOUND NO INDICIATIONS OF FIRE OR SMOKE.Mar 27, 2021 · N421UW · Airbus A321253NX · Smoke Detection
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