# Service difficulty reports: N493PH

A list on [N493PH](https://openairdocs.org/aircraft/N493PH.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

Page 1 of 3 · 103 reports

- [SDR HEER20190507882](https://openairdocs.org/sdr/HEER20190507882.md): Skin · punctured · May 7, 2019 · N493PH · Bell 407 · Fuselage Main, Plate/Skin
  > FORWARD SHELL ASSEMBLY INNER SKIN WAS FOUND TO BE DAMAGED - PUNCTURED UNDER THE EXISTING RT PASSENGER DOOR STRUT INSTALLATION. THE REPAIR DOCUMENTATION WILL BE SUBMITTED FOR FAA APPROVAL. THE FORWARD SHELL ASSEMBLY WILL THEN BE REPAIRED IN ACCORDANCE WITH TH
- [SDR HEEA088026](https://openairdocs.org/sdr/HEEA088026.md): Magnetic Seal · leaking · Jun 19, 2003 · N493PH · Bell 407 · Main Rotor Gearbox
  > TRANSMISSION INPUT SEAL LEAKING. REPLACED MAG SEAL 206040156001 DUE TO PITTING. REPAIRED.
- [SDR HEEA087429](https://openairdocs.org/sdr/HEEA087429.md): Float · leaking · Jun 12, 2003 · N493PH · Bell 407 · Emergency Flotation Section
  > LEAKING AROUND FWD INSIDE RELIEF VALVE. TO BE SENT TO VENDOR FOR REPAIR.
- [SDR HEEA087420](https://openairdocs.org/sdr/HEEA087420.md): Disc Pack · cracked · Jun 11, 2003 · N493PH · Bell 407 · Tail Rotor Drive Shaft
  > TAIL ROTOR DISC PACK CRACKED.
- [SDR HEEA087419](https://openairdocs.org/sdr/HEEA087419.md): Disc Pack · cracked · Jun 11, 2003 · N493PH · Bell 407 · Tail Rotor Drive Shaft
  > TAIL ROTOR DISC PACK CRACKED.
- [SDR HEEA087334](https://openairdocs.org/sdr/HEEA087334.md): Coupling · corroded · Jun 11, 2003 · N493PH · Bell 407 · Tail Rotor Drive Shaft
  > SPLINE COUPLING HAS CORROSION ON SPLINES. REPLACED.
- [SDR HEEA087300](https://openairdocs.org/sdr/HEEA087300.md): Bearing · worn · Jun 11, 2003 · N493PH · Bell 407 · Main Rotor Drive System
  > MAIN ROTOR DRIVE HAS A BEARING WORN OUT.
- [SDR HEEA087273](https://openairdocs.org/sdr/HEEA087273.md): Pressure Switch · inoperative · Jun 11, 2003 · N493PH · Bell 407 · Rotor Drive Indicating System
  > PRESSURE SWITCH INOPERATIVE, CAUTION LIGHT WILL NOT COME ON. TO BE SENT TO MFG.
- [SDR HEEA087045](https://openairdocs.org/sdr/HEEA087045.md): Link · worn · Jun 4, 2003 · N493PH · Bell 407 · Main Rotor Head
  > MAIN ROTOR LINK WORN.
- [SDR HEEA087028](https://openairdocs.org/sdr/HEEA087028.md): Seal · leaking · Jun 4, 2003 · N493PH · Bell 407 · Engine/Transmission Coupling
  > SEAL LEAKING. TO BE SENT TO MFG FOR CREDIT.
- [SDR HEEA087021](https://openairdocs.org/sdr/HEEA087021.md): Pin · worn · Jun 4, 2003 · N493PH · Bell 407 · Main Rotor Mast/Swashplate
  > MAIN ROTOR HEAD PIN WORN.
- [SDR HEEA087020](https://openairdocs.org/sdr/HEEA087020.md): Bushing · worn · Jun 4, 2003 · N493PH · Bell 407 · Main Rotor Mast/Swashplate
  > MAIN ROTOR HEAD BUSHINGS WORN.
- [SDR HEEA087016](https://openairdocs.org/sdr/HEEA087016.md): Pitch Link · worn · Jun 4, 2003 · N493PH · Bell 407 · Main Rotor Mast/Swashplate
  > LINK ASSY HAS WORN BUSHINGS.
- [SDR HEEA087011](https://openairdocs.org/sdr/HEEA087011.md): Lever · worn · Jun 4, 2003 · N493PH · Bell 407 · Main Rotor Mast/Swashplate
  > MAIN ROTOR LEVER ASSY HAS WORN BUSHINGS.
- [SDR HEEA087001](https://openairdocs.org/sdr/HEEA087001.md): Bleed Valve · malfunctioned · Jun 4, 2003 · N493PH · Bell 407 · Compressor Bleed Valve
  > BLEED VALVE PRODUCING TOT HIGH IN FLIGHT. REPAIRED.
- [SDR HEEA084396](https://openairdocs.org/sdr/HEEA084396.md): Seal · leaking · Feb 12, 2003 · N493PH · Bell 407 · Tail Rotor Gearbox
  > GEARBOX INPUT SEAL LEAKING. REPAIRED.
- [SDR HEEA084373](https://openairdocs.org/sdr/HEEA084373.md): Power Supply · failed · Feb 11, 2003 · N493PH · Bell 407 · Exterior Lighting
  > ANTI COLLISION LIGHT INOPERATIVE. POWER SUPPLY FAILED.
- [SDR HEEA084298](https://openairdocs.org/sdr/HEEA084298.md): Mount · worn · Feb 11, 2003 · N493PH · Bell 407 · Main Rotor Transmission Mount
  > MAIN ROTOR GEARBOX MOUNT WORN.
- [SDR HEEA084297](https://openairdocs.org/sdr/HEEA084297.md): Mount · worn · Feb 11, 2003 · N493PH · Bell 407 · Main Rotor Transmission Mount
  > MAIN ROTOR GEARBOX MOUNT WORN.
- [SDR HEEA083930](https://openairdocs.org/sdr/HEEA083930.md): Spring · broken · Jan 17, 2003 · N493PH · Bell 407 · Main Rotor Head
  > MAIN ROTOR HEAD FRAHM ASSY HAS THREE CRACKED SPRINGS.
- [SDR HEEA083922](https://openairdocs.org/sdr/HEEA083922.md): Bellcrank · worn · Jan 17, 2003 · N493PH · Bell 407 · Tail Rotor Control System
  > TAIL ROTOR CONTROL BELLCRANK HAS A WORN BEARING.
- [SDR HEEA083912](https://openairdocs.org/sdr/HEEA083912.md): Bearing · worn · Jan 17, 2003 · N493PH · Bell 407 · Main Rotor Control
  > IDLER PIVOT BEARING WORN.
- [SDR HEEA083885](https://openairdocs.org/sdr/HEEA083885.md): Universal · worn · Jan 16, 2003 · N493PH · Bell 407 · Main Rotor Drive System
  > MAIN ROTOR UNIVERSAL HAS BEARING WEAR.
- [SDR HEEA083873](https://openairdocs.org/sdr/HEEA083873.md): Universal · worn · Jan 16, 2003 · N493PH · Bell 407 · Main Rotor Drive System
  > MAIN ROTOR UNIVERSAL HAS BEARING WEAR.
- [SDR HEEA083869](https://openairdocs.org/sdr/HEEA083869.md): Universal · worn · Jan 16, 2003 · N493PH · Bell 407 · Main Rotor Drive System
  > UNIVERSAL HAS BEARING WEAR.
- [SDR HEEA083867](https://openairdocs.org/sdr/HEEA083867.md): Freewheel Unit · malfunctioned · Jan 16, 2003 · N493PH · Bell 407 · Engine/Transmission Coupling
  > FREEWHEEL UNIT CAUSING ENGINE VIBRATION FWD END AND ALSO FWD SEAL LEAKING. REPLACED FWU.
- [SDR HEEA083865](https://openairdocs.org/sdr/HEEA083865.md): Seal · leaking · Jan 16, 2003 · N493PH · Bell 407 · Engine/Transmission Coupling
  > FREEWHEEL UNINT FWD AND AFT SEAL LEAKING OIL. REPLACED FREEWHEEL UNIT.
- [SDR HEEA083844](https://openairdocs.org/sdr/HEEA083844.md): Bushing · worn · Jan 16, 2003 · N493PH · Bell 407 · Main Rotor Mast/Swashplate
  > MAIN ROTOR SWASHPLATE LINK BUSHINGS ARE WORN.
- [SDR HEEA083799](https://openairdocs.org/sdr/HEEA083799.md): Hydromech Unit · damaged · Jan 15, 2003 · N493PH · Bell 407 · Fuel Controlling System
  > HMU HAS SPLINE WEAR AND UNABLE TO BLEED. REPLACED WITH SERVICEABLE PART.
- [SDR HEEA083790](https://openairdocs.org/sdr/HEEA083790.md): Filter · bypassing · Jan 15, 2003 · N493PH · Bell 407 · Aircraft Fuel Filter/Strainer
  > FILTER BYPASS INDICATOR POPPED. REPLACED WITH SERVICEABLE PART.
- [SDR HEEA083775](https://openairdocs.org/sdr/HEEA083775.md): Shaft · sheared · Jan 15, 2003 · N493PH · Bell 407 · Engine Indicating System
  > FADEC FAULT IN FLIGHT. FOUND PMA SHAFT SHEARED DUE TO FAILED BEARING IN PMA. REPLACED WITH SERVICEABLE PART.
- [SDR HEEA083774](https://openairdocs.org/sdr/HEEA083774.md): Bearing · failed · Jan 15, 2003 · N493PH · Bell 407 · Engine RPM Indicating System
  > FADEC FAULT IN FLIGHT. FOUND PMA SHAFT SHEARED DUE TO FAILED BEARING IN PMA. REPLACED WITH SERVICEABLE PART.
- [SDR HEEA083741](https://openairdocs.org/sdr/HEEA083741.md): Fitting · corroded · Jan 15, 2003 · N493PH · Bell 407 · Aircraft Fuel Distribution System
  > SMALL END OF FITTING IS CORRODED. SCRAPPED.
- [SDR HEEA083713](https://openairdocs.org/sdr/HEEA083713.md): Pump · noisy · Jan 15, 2003 · N493PH · Bell 407 · Hydraulic Pump (Electric/Engine), Main
  > HYD PUMP MAKING ABNORMAL NOISE.
- [SDR HEEA083690](https://openairdocs.org/sdr/HEEA083690.md): Brushes · worn · Jan 15, 2003 · N493PH · Bell 407 · Starter-Generator
  > STARTER GEN BRUSHES WORN. REPAIRED.
- [SDR HEEA083669](https://openairdocs.org/sdr/HEEA083669.md): Seal · leaking · Jan 15, 2003 · N493PH · Bell 407 · Main Rotor Gearbox
  > MAIN ROTOR GEARBOX SEAL REMOVED DUE TO OIL LEAK.
- [SDR HEEA083653](https://openairdocs.org/sdr/HEEA083653.md): Hose · kinked · Jan 14, 2003 · N493PH · Bell 407 · Aircraft Fuel Distribution System
  > FUEL HOSE ASSY KINKED.
- [SDR HEEA083482](https://openairdocs.org/sdr/HEEA083482.md): Seal · leaking · Jan 10, 2003 · N493PH · Bell 407 · Main Rotor Mast/Swashplate
  > MAST SEAL LEAKS. REPLACED SEAL PN 537855 DUE TO WORN AND PN 406040090103 NUT DUE TO GROOVED SEAL AREA.
- [SDR HEEA080264](https://openairdocs.org/sdr/HEEA080264.md): Panel · cracked · Jun 27, 2002 · N493PH · Bell 407 · Passenger/Crew Doors
  > DOOR PANEL CRACKED.
- [SDR HEEA080082](https://openairdocs.org/sdr/HEEA080082.md): Bearing · rough · Jun 11, 2002 · N493PH · Bell 407 · Main Rotor Gearbox
  > OIL COOLER BLOWER BEARING ROUGH.
- [SDR HEEA080016](https://openairdocs.org/sdr/HEEA080016.md): Filter · bypassing · Jun 10, 2002 · N493PH · Bell 407 · Turbine Engine Oil System
  > CEFA LUBE SIDE BYPASS INDICATOR EXTENDED. REPLACED WITH SERVICEABLE FILTER.
- [SDR HEEA080010](https://openairdocs.org/sdr/HEEA080010.md): Bleed Valve · failed · Jun 10, 2002 · N493PH · Bell 407 · Compressor Bleed Valve
  > TORQUE FLUCTUATION DURING CRUISE FLIGHT. REPLACED WITH SERVICEABLE BLEED VALVE.
- [SDR HEEA079995](https://openairdocs.org/sdr/HEEA079995.md): Starter Gen · worn · Jun 10, 2002 · N493PH · Bell 407 · Starter-Generator
  > BRUSHES WORN ON 300 HOUR INSPECTION.
- [SDR HEEA079936](https://openairdocs.org/sdr/HEEA079936.md): Mount · worn · Jun 3, 2002 · N493PH · Bell 407 · Engine Mount Section
  > ENGINE MOUNT HAS A BEARING WORN. REPLACED WITH SERVICEABLE PART.
- [SDR HEEA079229](https://openairdocs.org/sdr/HEEA079229.md): Exhaust Stack · cracked · May 24, 2002 · N493PH · Bell 407 · Engine Collector/Tailpipe/Nozzle
  > ENGINE EXHAUST STACK CRACKED.
- [SDR HEEA079227](https://openairdocs.org/sdr/HEEA079227.md): Link · corroded · May 24, 2002 · N493PH · Bell 407 · Main Rotor Control
  > CORROSION ON MAIN ROTOR DRIVE LINK.
- [SDR HEEA079044](https://openairdocs.org/sdr/HEEA079044.md): Bearing · rough · May 15, 2002 · N493PH · Bell 407 · Tail Rotor Drive Shaft
  > ROUGH BEARINGS ON COOLER BLOWER ASSY.
- [SDR HEEA079014](https://openairdocs.org/sdr/HEEA079014.md): Pressure Switch · corroded · May 15, 2002 · N493PH · Bell 407 · Fuel System Wiring
  > FUEL BOOST PUMP PRESSURE SWITCH WIRES CORRODED AND BROKEN.
- [SDR HEEA078832](https://openairdocs.org/sdr/HEEA078832.md): Case · corroded · May 7, 2002 · N493PH · Bell 407 · Tail Rotor Gearbox
  > TAIL ROTOR GEARBOX HAS EXCESSIVE PITTING BETWEEN CHIP DETECTOR AND RIGHT FORWARD MOUNTING STUD.
- [SDR HEEA078815](https://openairdocs.org/sdr/HEEA078815.md): Hmu · failed · May 7, 2002 · N493PH · Bell 407 · Fuel Controlling System
  > HMU HAS METERING VALVE CIRCUIT FAULT. REPLACED WITH SERVICEABLE HMU.

Next page: https://openairdocs.org/aircraft/N493PH/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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 = 'N493PH' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N493PH/reports

---
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.