# N501PH: Bell 407, registration cancelled 2025-04-19 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: April 19, 2025 - Status when cancelled: Assigned, pending cancellation - Airframe: [Bell 407](https://openairdocs.org/model/bell-407) (registry code 1182206) - Engine: [Allison 250-C47 series](https://openairdocs.org/engine/allison-250-c47-series) (registry code 03029) - Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW), [TCDS E1GL](https://openairdocs.org/tcds/E1GL) (OpenAirDocs) - Serial number: 53401 - Type of aircraft: Rotorcraft - Engine type: Turbo-shaft - Airworthiness: Standard, normal - Airworthiness date: December 29, 1999 - Last registry action: October 17, 2024 - Mode S code: A63EF4 - The mark today: https://openairdocs.org/aircraft/N501PH - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=501PH - Page: https://openairdocs.org/deregistered/N501PH-2025-04-19 From the FAA registry file of November 5, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe. ADs and bulletins for the Bell 407: https://openairdocs.org/model/bell-407.md ## Service difficulty reports (80, newest 50) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR HEER20141020174](https://openairdocs.org/sdr/HEER20141020174), Oct 20, 2014: BEARING. SPALLED. ENGINE REMOVED 10-14-14 DUE TO METAL IN OIL. NR 5 BEARING REMOVED DUE TO POSSIBLE SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW PART AND RETURNED TO MFG FOR F - [SDR HEEA2012010832853](https://openairdocs.org/sdr/HEEA2012010832853), Jan 8, 2012: BEARING. SPALLED. TURBINE REMOVED DUE TO METAL IN OIL. UPON INSPECTION OF NR 5 BEARING FOUND SPALLING ON OUTER RACE. REPLACED WITH NEW. - [SDR HEEA131869](https://openairdocs.org/sdr/HEEA131869), Aug 9, 2011: STRUCTURE. CORRODED. FWD LOWER SHELL ASSY WAS FOUND TO BE CORRODED (1PL). - [SDR HEEA20110809001](https://openairdocs.org/sdr/HEEA20110809001), Aug 9, 2011: PANEL. CORRODED. ROOF PANEL WAS FOUND TO BE CORRODED (1PL) COMMON TO TRANSMISSION PYLON SHIM INSTALLATION. THE ROOF PANEL ASSY WILL THEN BE REPAIRED IAW THE FAA-APPROVED REPAIR - [SDR HEEA129880](https://openairdocs.org/sdr/HEEA129880), Nov 23, 2010: BEARING. SPALLED. ENGINE REMOVED FOR TURBINE O/H. NR5 BRG EXHIBITED SPALLING ON OUTER RACE AND BALLS. REPLACED NR5 BRG. - [SDR HEEA087486](https://openairdocs.org/sdr/HEEA087486), Jun 12, 2003: RELAY. MALFUNCTIONED. RELAY CAUSING DEGRADE LIGHT. - [SDR HEEA087471](https://openairdocs.org/sdr/HEEA087471), Jun 12, 2003: BATTERY. CORRODED. BATTERY FAILED. FOUND MEMORY BATTERY BAD AND CORROSION ON PRINTED CIRCUIT BOARDS. REPLACED MEMORY BATTERY AND CLEANED CORROSION. BENCH CHECK GOOD. - [SDR HEEA087382](https://openairdocs.org/sdr/HEEA087382), Jun 11, 2003: PANEL. CRACKED. INTERIOR PANEL CRACKED. - [SDR HEEA087376](https://openairdocs.org/sdr/HEEA087376), Jun 11, 2003: PANEL. CRACKED. HEADLINER PANEL CRACKED. - [SDR HEEA087374](https://openairdocs.org/sdr/HEEA087374), Jun 11, 2003: PANEL. CRACKED. SEAT PANEL CRACKED. - [SDR HEEA087356](https://openairdocs.org/sdr/HEEA087356), Jun 11, 2003: TRIM PANEL. CRACKED. TRIM PANEL CRACKED ALONG EDGES BEYOND REPAIR. - [SDR HEEA087346](https://openairdocs.org/sdr/HEEA087346), Jun 11, 2003: TUBE. LEAKING. FLARE IS WORN AND UNABLE TO STOP LEAK. - [SDR HEEA087313](https://openairdocs.org/sdr/HEEA087313), Jun 11, 2003: BLADE. DAMAGED. SEALANT MISSING FROM ROOT END. CORROSION AT WEIGHT POCKET, HOLE ALONG TIP ABOVE BLADE TIE DOWN BRACKET. SERIAL NUMBERS REMOVED ARE A2029, A2041, A2060 AND A2061 - [SDR HEEA087298](https://openairdocs.org/sdr/HEEA087298), Jun 11, 2003: FRAHM. BROKEN. FRAHM ASSY HAS A BROKEN SPRING. REPLACED SPRING (2 EA) 407310104105 DUE TO BROKEN. REPAIRED. - [SDR HEEA087288](https://openairdocs.org/sdr/HEEA087288), Jun 11, 2003: IDLER ASSY. BINDING. MAIN ROTOR CONTROL IDLER ASSY BEARINGS BINDING. REPAIRED. - [SDR HEEA087019](https://openairdocs.org/sdr/HEEA087019), Jun 4, 2003: GIMBAL RING. CORRODED. CORROSION BLEEDING OUT OF STEEL BUSHINGS THAT ARE INSERTED INTO THE ALUMINUM GIMBAL. TO BE SENT TO BELL FOR CREDIT. - [SDR HEEA086979](https://openairdocs.org/sdr/HEEA086979), Jun 3, 2003: TRANSMITTER. INOPERATIVE. TRANSMITTER INOPERATIVE, NO PRESSURE INDICATION. SENT TO MFG FOR CREDIT. - [SDR HEEA086971](https://openairdocs.org/sdr/HEEA086971), Jun 3, 2003: BEARING. WORN. BEARING THAT RT CYCLIC CONTROL TUBE CONNECTS TO HAS EXCESSIVE RADIAL PLAY. TO BE SENT TO MFG FOR CREDIT. - [SDR HEEA086953](https://openairdocs.org/sdr/HEEA086953), Jun 3, 2003: SKID. CORRODED. DISSIMILAR METAL CORROSION AROUND THE FLOAT BAG MOUNT INSERTS. TO BE SENT TO VENDOR. - [SDR HEEA086952](https://openairdocs.org/sdr/HEEA086952), Jun 3, 2003: SKID. CORRODED. DISSIMILAR METAL CORROSION AROUND THE FLOAT BAG MOUNT INSERTS. TO BE SENT TO VENDOR. - [SDR HEEA086951](https://openairdocs.org/sdr/HEEA086951), Jun 3, 2003: STRAP. CORRODED. STRAP ASSY CORRODED, UNABLE TO DETECT CORROSION UNTIL PAINT REMOVAL. TO BE SENT TO VENDOR. - [SDR HEEA084322](https://openairdocs.org/sdr/HEEA084322), Feb 11, 2003: PRESSURE SWITCH. MALFUNCTIONED. BOOST PUMP LIGHT NOT ILLUMINATING. REPLACED FUEL CELL PRESSURE SWITCH. - [SDR HEEA084293](https://openairdocs.org/sdr/HEEA084293), Feb 11, 2003: SPRING. WORN. MAIN ROTOR GEARBOX MOUNT BEARING WORN; BOOT STRETCHED. - [SDR HEEA083993](https://openairdocs.org/sdr/HEEA083993), Jan 17, 2003: WASHER. DEBONDED. EXHAUST DUCT BUFFER WASHER UNBONDED. - [SDR HEEA083986](https://openairdocs.org/sdr/HEEA083986), Jan 17, 2003: DUCT. CRACKED. EXHAUST DUCT CRACKED. - [SDR HEEA083918](https://openairdocs.org/sdr/HEEA083918), Jan 17, 2003: BELLCRANK. DEBONDED. MAIN ROTOR HEAD BELLCRANK RUBBER IS DEBONDED. - [SDR HEEA083915](https://openairdocs.org/sdr/HEEA083915), Jan 17, 2003: BELLCRANK. DEBONDED. MAIN ROTOR HEAD BUFFER WASHER, RUBBER DEBONDING. - [SDR HEEA083914](https://openairdocs.org/sdr/HEEA083914), Jan 17, 2003: BELLCRANK. DEBONDED. MAIN ROTOR HEAD BELLCRANK BUFFER WASHER, RUBBER DEBONDING. T - [SDR HEEA083896](https://openairdocs.org/sdr/HEEA083896), Jan 17, 2003: BOOT. TORN. MAIN ROTOR BOOT IS TORN AND RIPPED. - [SDR HEEA083863](https://openairdocs.org/sdr/HEEA083863), Jan 16, 2003: SHAFT. CORRODED. TAIL ROTOR GEARBOX OUTPUT SHAFT HAS EXCESSIVE PITTING ON SPLINES. OUTPUT CAP 406040408101, SN AFS1424 BEARING LINER WORN BEYOND LIMITS. REPAIRED. - [SDR HEEA083846](https://openairdocs.org/sdr/HEEA083846), Jan 16, 2003: BUSHING. WORN. MAIN ROTOR PITCH CHANGE LEVER BUSHINGS WORN. - [SDR HEEA083845](https://openairdocs.org/sdr/HEEA083845), Jan 16, 2003: BUSHING. WORN. MAIN ROTOR PITCH CHANGE LEVER BUSHINGS WORN. - [SDR HEEA083839](https://openairdocs.org/sdr/HEEA083839), Jan 16, 2003: BUSHING. WORN. MAIN ROTOR HEAD BUSHING SET WORN. - [SDR HEEA083833](https://openairdocs.org/sdr/HEEA083833), Jan 16, 2003: LINK. WORN. MAIN ROTOR LINK ASSY WORN. - [SDR HEEA083829](https://openairdocs.org/sdr/HEEA083829), Jan 16, 2003: LEVER. WORN. MAIN ROTOR LEVER ASSY WORN. - [SDR HEEA083781](https://openairdocs.org/sdr/HEEA083781), Jan 15, 2003: LINER. CRACKED. CRACKS AROUND THE INSIDE EDGE OF LINER AT END THAT MOUNTS TO SHIELD. REPLACED WITH SERVICEABLE PART. - [SDR HEEA083772](https://openairdocs.org/sdr/HEEA083772), Jan 15, 2003: ENGINE. MAKING METAL. ENGINE MAKING METAL. REPLACED WITH SERVICEABLE ENGINE. - [SDR HEEA083767](https://openairdocs.org/sdr/HEEA083767), Jan 15, 2003: SHIELD. CRACKED. NR 1 NOZZLE SHIELD CRACK AT CENTER OF SHIELD DOME. REPLACED WITH SERVICEABLE PART. - [SDR HEEA083747](https://openairdocs.org/sdr/HEEA083747), Jan 15, 2003: BLEED VALVE. FAILED. CAUSING HIGHER THAN NORMAL MGT READINGS. REPLACED BLEED VALVE. - [SDR HEEA083739](https://openairdocs.org/sdr/HEEA083739), Jan 15, 2003: CONNECTOR. DAMAGED. "B" PIN LOOSE CAUSING FUEL FILTER LIGHT IN COCKPIT TO ILLUMINATE ON CAUTION PANEL. - [SDR HEEA083735](https://openairdocs.org/sdr/HEEA083735), Jan 15, 2003: FILTER. MALFUNCTIONED. INTERMITTENT FUEL FILTER LIGHT. - [SDR HEEA083696](https://openairdocs.org/sdr/HEEA083696), Jan 15, 2003: DUCT. CRACKED. EXHAUST DUCT CRACKED AT BOTH ENDS. - [SDR HEEA083694](https://openairdocs.org/sdr/HEEA083694), Jan 15, 2003: BRUSHES. WORN. STARTER GEN BRUSHES WORN. - [SDR HEEA083674](https://openairdocs.org/sdr/HEEA083674), Jan 15, 2003: COVER. TORN. EMERGENCY FLOAT COVER WORN, TORN, VELCRO LOOSE. - [SDR HEEA083665](https://openairdocs.org/sdr/HEEA083665), Jan 14, 2003: CHECK VALVE. DAMAGED. CHECK VALVE FLARE END NICKED CAUSING LEAK. REPAIRED. - [SDR HEEA080273](https://openairdocs.org/sdr/HEEA080273), Jun 27, 2002: MOUNT. CONTAMINATED. MOUNT OIL SOAKED. - [SDR HEEA080257](https://openairdocs.org/sdr/HEEA080257), Jun 27, 2002: BIPOD MOUNT. WORN. ENGINE BIPOD MOUNT WORN. - [SDR HEEA080240](https://openairdocs.org/sdr/HEEA080240), Jun 27, 2002: FRAHM. BROKEN. BROKEN FRAHM ASSY SPRING. - [SDR HEEA080236](https://openairdocs.org/sdr/HEEA080236), Jun 27, 2002: BELLCRANK. DEBONDED. BELLCRANK HAS BUSHINGS DISBONDED. - [SDR HEEA080190](https://openairdocs.org/sdr/HEEA080190), Jun 26, 2002: BRUSHES. WORN. STARTER GEN BRUSHES WORN. All 80: https://openairdocs.org/deregistered/N501PH-2025-04-19/reports.md ## NTSB investigations (2) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CEN15LA265](https://openairdocs.org/ntsb/CEN15LA265), Jun 8, 2015: Bell 407 (N501PH), Pecan Island, LA, substantial damage. Probable cause: The fatigue fracture of the tail rotor gearbox attachment studs, which resulted in a loss of tail rotor control and a subsequent hard landing. - [NTSB FTW03FA117](https://openairdocs.org/ntsb/FTW03FA117), Mar 24, 2003: Bell 407 (N501PH), Houma, LA, substantial damage. Probable cause: The loss of tail rotor drive and anti-torque control resulting from the fracture and separation of the #5 tail rotor drive segment due to the overtemperature and subsequent failure of the #5 hangar… ## FAA accident and incident reports (2) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20150608009789A](https://openairdocs.org/incident/20150608009789A), Jun 8, 2015: Bell 407 (N501PH), Pecan Island, LA, Substantial damage. The aircraft was about 2 miles off shore in-bound at 1200'. Pilot and passengers heard "thud" & felt short duration vibration. Pilot lowered collective… - [Accident 20030425008149A](https://openairdocs.org/incident/20030425008149A), Apr 25, 2003: Bell 407 (N501PH), Houma, LA, Substantial damage. (-23) The aircraft experienced two subsequent momentary vibrations during cruise flight. The pilot elected to make a precautionary landing to investigate the… --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.