N491PH, cancelled Nov 12, 2025

Service difficulty reports · 127

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 = 'N491PH' AND deregistration_id = 'N491PH-2025-11-12'
  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 HEER20180710065Throttle Cable · brokenAIRCRAFT WOULD NOT ROLL DOWN TO IDLE. REMOVED AND REPLACED BROKEN THROTTLE CONTROL CABLE.Jul 5, 2018 · N491PH · Bell 407 · Power LeverSDR HEER20160920232Bearing · spalledENGINE REMOVED 9-2-16 TO UPGRADE NR 5 BEARING AND TURBINE OVERHAUL. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED BEARING.Sep 20, 2016 · N491PH · Bell 407 · Turbine SectionSDR HEER20151028837Bearing · spalledNR 5 BEARING REMOVED DUE TO PROBABLE SPALLING AT OUTER RACE SPLIT.Oct 28, 2015 · N491PH · Bell 407 · Turbine SectionSDR HEER20141020173Bearing · spalledENGINE REMOVED ON 10-13-14 FOR TURBINE OVERHAUL. NR 5 BEARING EXHIBITS A SPALLING BALL. REPLACED BEARING. PART WILL BE RETURNED TO MFG FOR EVALUATION.Oct 20, 2014 · N491PH · Bell 407 · Turbine SectionSDR HEEA124082Support · corrodedTHE SUPPORT HAS EXFOLIATING CORROSION CAUSING IT TO FAIL, ALLOWING A PORTION OF THE SLAT ASSY TO DEPART FROM THE ACFT IN FLIGHT. FOUND ONCE ACFT LANDED AT BASE STATION. REPLACED SLAT ASSEMBLY.Mar 26, 2009 · N491PH · Bell 407 · Horizontal Stabilizer StructureSDR HEEA088943Windshield · crazedWINDSHIELD CRAZED.Jul 4, 2003 · N491PH · Bell 407 · Flight Compartment WindowsSDR HEEA088016Headrest · damagedDISSENGAGE PINS WILL NOT DISSENGAGE FOR HEADREST ADJUSTMENT. REPLACED WITH SERVICEABLE PART.Jun 26, 2003 · N491PH · Bell 407 · Flight Compartment EquipmentSDR HEEA088025Bolt · corrodedENGINE MOUNT BOLT CORRODED DUE TO INADEQUATE PROTECTION DURING MFG PROCESS. REPLACED WITH SERVICEABLE PART.Jun 23, 2003 · N491PH · Bell 407 · Engine Mount SectionSDR HEEA088012Window · crazedPAX DOOR WINDOW IS CRAZED BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Jun 23, 2003 · N491PH · Bell 407 · Flight Compartment WindowsSDR HEEA088011Window · crazedLITTER DOOR WINDOW IS CRAZED BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Jun 23, 2003 · N491PH · Bell 407 · Flight Compartment WindowsSDR HEEA088010Window · crazedCREW DOOR WINDOW CRAZED BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Jun 23, 2003 · N491PH · Bell 407 · Door WindowsSDR HEEA088009Window · crazedCRAZED BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Jun 22, 2003 · N491PH · Bell 407 · Door WindowsSDR HEEA088008Window · crazedLITTER DOOR WINDOW IS CRAZED BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Jun 22, 2003 · N491PH · Bell 407 · Passenger Compartment WindowsSDR HEEA088007Chin Bubble · crazedRIGHT CHIN BUBBLE CRAZED BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Jun 22, 2003 · N491PH · Bell 407 · Flight Compartment WindowsSDR HEEA088006Chin Bubble · crazedLEFT CHIN BUBBLE CRAZED BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Jun 22, 2003 · N491PH · Bell 407 · Flight Compartment WindowsSDR HEEA087999Idler Assy · damagedMAIN ROTOR IDLER ASSY BEARING OUTER RACE TURNING IN IDLER. REPLACED WITH SERVICEABLE PART.Jun 22, 2003 · N491PH · Bell 407 · Main Rotor ControlSDR HEEA087998Idler Assy · ratchetingMAIN ROTOR CONTROL IDLER ASSY HAS BEARINGS RATCHETY. REPLACED WITH SERVICEABLE PART.Jun 22, 2003 · N491PH · Bell 407 · Main Rotor ControlSDR HEEA088020Window · crazedCOCKPIT WINDOW CRAZED. REPLACED WITH SERVICEABLE PART.Jun 21, 2003 · N491PH · Bell 407 · Flight Compartment WindowsSDR HEEA088002Cone · peelingMAIN ROTOR HEAD LOWER CONE HAS TEFLON COATING PEELING OFF OF INNER RACE. REPLACED WITH SERVICEABLE PART.Jun 21, 2003 · N491PH · Bell 407 · Main Rotor HeadSDR HEEA088015Leg Assy · wornENGINE MOUNT LEG ASSY HAS A HOLE WALLED OUT OF LIMITS. REPLACED WITH SERVICEABLE PART.Jun 20, 2003 · N491PH · Bell 407 · Engine Mount SectionSDR HEEA088014Bearing · wornENGINE BIPOD MOUNT HAS WORN BEARINGS. REPLACED WITH SERVICEABLE PART.Jun 20, 2003 · N491PH · Bell 407 · Engine Mount SectionSDR HEEA087994Tube · corrodedCORROSION DAMAGED BEYOND LIMITS DUE TO INADEQUATE PROTECTION DURING MFG PROCESS. REPLACED WITH SERVICEABLE PART.Jun 20, 2003 · N491PH · Bell 407 · Tilt Rotor Flight ControlSDR HEEA088013Crosstube · wornMLG CROSSTUBE T-BOLT WORN. REPLACED WITH SERVICEABLE PART.Jun 19, 2003 · N491PH · Bell 407 · Main Landing Gear Strut/Axle/TruckSDR HEEA087869Pitot Line · corrodedPITOT LINE HAS DEVELOPMENT OF CORROSION DUE TO TREATMENT USED DURING MANUFACTURE PROCESS. REPLACED TUBE.Jun 17, 2003 · N491PH · Bell 407 · Pitot/Static SystemSDR HEEA087868Static Line · corrodedSTATIC LINE HAS DEVELOPMENT OF CORROSION DUE TO TREATMENT USED DURING MANUFACTURE PROCESS. REPLACED TUBE.Jun 17, 2003 · N491PH · Bell 407 · Pitot/Static SystemSDR HEEA087867Static Line · corrodedSTATIC LINE HAS DEVELOPMENT OF CORROSION DUE TO TREATMENT USED DURING MANUFACTURE PROCESS. REPLACED TUBE.Jun 17, 2003 · N491PH · Bell 407 · Pitot/Static SystemSDR HEEA087866Static Line · corrodedSTATIC LINE HAS DEVELOPMENT OF CORROSION DUE TO TREATMENT USED DURING MANUFACTURE PROCESS. REPLACED TUBE.Jun 17, 2003 · N491PH · Bell 407 · Pitot/Static SystemSDR HEEA087878Line · corrodedHYDRAULIC LINE HAS DEVELOPMENT OF CORROSION UNDER SLEEVE DUE TO DISSIMILAR METALS USED DURING MANUFACTURE PROCESS. REPLACED WITH SERVICEABLE PART.Jun 14, 2003 · N491PH · Bell 407 · Hydraulic System, MainSDR HEEA087877Line · corrodedHYDRAULIC LINE HAS DEVELOPMENT OF CORROSION UNDER SLEEVE DUE TO DISSIMILAR METALS USED DURING MANUFACTURE PROCESS. REPLACED WITH SERVICEABLE PART.Jun 14, 2003 · N491PH · Bell 407 · Hydraulic System, MainSDR HEEA087876Line · corrodedHYD LINE HAS DEVELOPMENT OF CORROSION UNDER SLEEVE DUE TO DISSIMILAR METALS USED DURING MANUFACTURE PROCESS. REPLACED WITH SERVICEABLE PART.Jun 14, 2003 · N491PH · Bell 407 · Hydraulic System, MainSDR HEEA087860Tube · corrodedMAIN ROTOR GEARBOX OIL TUBE HAS CORROSION FOUND UNDER ADEL CLAMP NOT VISIBLE UNTIL REMOVED. REPLACED WITH SERVICEABLE PART.Jun 14, 2003 · N491PH · Bell 407 · Main Rotor GearboxSDR HEEA087859Tube · corrodedMAIN ROTOR GEARBOX OIL TUBE HAS CORROSION FOUND UNDER ADEL CLAMP NOT VISIBLE UNTIL REMOVED. REPLACED WITH SERVICEABLE PART.Jun 14, 2003 · N491PH · Bell 407 · Main Rotor GearboxSDR HEEA087850Windshield · crazedWINDSHIELD CRAZED. REPLACED WITH SERVICEABLE PART.Jun 14, 2003 · N491PH · Bell 407 · Flight Compartment WindowsSDR HEEA087849Windshield · crazedWINDSHIELD CRAZED. REPLACED WITH SERVICEABLE PART.Jun 14, 2003 · N491PH · Bell 407 · Flight Compartment WindowsSDR HEEA087832Door · corrodedINTAKE COWLING DOOR IS CORRODED AND CHAFED BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Jun 14, 2003 · N491PH · Bell 407 · Nacelle/Pylon, Main FrameSDR HEEA087831Tube · corrodedFUEL SYSTEM TUBE HAS CORROSION PITTING UNDER SLEEVE DUE TO IMPROPER PROTECTION DURING MANUFACTURING PROCESS. REPLACED WITH SERVICEABLE PART.Jun 14, 2003 · N491PH · Bell 407 · Fuel StorageSDR HEEA087505Nut · wornLOW CYCLIC FRICTION - COULD NOT ADJUST DUE TO WORN THREADS. SCRAPPED.Jun 12, 2003 · N491PH · Bell 407 · Main Rotor ControlSDR HEEA087504Nut · wornLOW CYCLIC FRICTION - COULD NOT ADJUST DUE TO WORN THREADS. SCRAPPED.Jun 12, 2003 · N491PH · Bell 407 · Main Rotor ControlSDR HEEA087483Case · corrodedCORRODED UNDER HEAT SHRINK, UNABLE TO DETECT UNTIL REMOVED.Jun 12, 2003 · N491PH · Bell 407 · Fuselage Miscellaneous StructureSDR HEEA087462Igniter · malfunctionedDELAYED LIGHT OFF. REPLACED IGNITER.Jun 12, 2003 · N491PH · Bell 407 · Spark Plug/IgniterSDR HEEA087461Igniter · contaminatedENGINE LIGHT OFF LATE. IGNITER HAS CARBON BUILD UP. REPLACED IGNITER.Jun 12, 2003 · N491PH · Bell 407 · Spark Plug/IgniterSDR HEEA087460Igniter · burnedDELAYED STARTS. IGNITER BURNED. REPLACED IGNITER.Jun 12, 2003 · N491PH · Bell 407 · Spark Plug/IgniterSDR HEEA087427Float · failedFAILED 6 MONTH INSPECTION. TO BE SENT TO VENDOR FOR REPAIR.Jun 12, 2003 · N491PH · Bell 407 · Emergency Flotation SectionSDR HEEA087362Structure · crackedSTORAGE BIN CRACKED.Jun 11, 2003 · N491PH · Bell 407 · Passenger Compartment EquipmentSDR HEEA087864Headrest · out of adjustHEADREST WILL NOT ADJUST. REPLACED WITH SERVICEABLE PART.Jun 11, 2003 · N491PH · Bell 407 · Flight Compartment EquipmentSDR HEEA087863Headrest · out of adjustHEADREST WILL NOT ADJUST. REPLACED WITH SERVICEABLE PART.Jun 11, 2003 · N491PH · Bell 407 · Flight Compartment EquipmentSDR HEEA087355Cover · crackedMAIN ROTOR CONTROL COVER CRACKED.Jun 11, 2003 · N491PH · Bell 407 · Main Rotor ControlSDR HEEA087282Pin · wornWORN AND PITTED. TO BE SENT TO MFG.Jun 11, 2003 · N491PH · Bell 407 · Main Rotor Mast/SwashplateSDR HEEA087281Bushing · wornWORN PIVOT BORE. TO BE SENT TO BELL HELICOPTER.Jun 11, 2003 · N491PH · Bell 407 · Main Rotor Mast/SwashplateSDR HEEA087279Gimbal Ring · corrodedGIMBAL RING, CORRODED. TO BE SENT TO MFG.Jun 11, 2003 · N491PH · Bell 407 · Main Rotor Mast/Swashplate
Back to N491PH, cancelled Nov 12, 2025