# Service difficulty reports: N53AG

A list on [N53AG](https://openairdocs.org/aircraft/N53AG.md).

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

- [SDR 2005FA0000785](https://openairdocs.org/sdr/2005FA0000785.md): Drive Shaft · vibration · May 11, 2005 · N53AG · Bell UH1H · Engine/Transmission Coupling
  > ( 2005-5-1) PILOT NOTICED VIBRATION AND RUMBLE COMING FROM THE MAIN TRANSMISSION AREA ON TAKEOFF. MECHANIC DID TROUBLE TROUBLESHOOTING PROCEDURES AND NOTICED ONE OF THE FLEX PLATES ON THE MAIN DRIVE SHAFT HAD SNAPPED CAUSING THE DRIVE SHAFT TO BE IN FAIL SAFE
- [SDR AGQA088876](https://openairdocs.org/sdr/AGQA088876.md): Pump · broken · Aug 12, 2003 · N53AG · Bell UH1H · Engine Oil Distribution (Airframe Furnished)
  > PUMP PRODUCING FLUXUATING OIL PRESSURE
- [SDR LS1R074932](https://openairdocs.org/sdr/LS1R074932.md): Cylinder · worn · Jul 20, 2001 · N53AG · Bell UH1H · Hydraulic System, Main
  > PART IS WORN EXCESSIVELY.
- [SDR LS1R072592](https://openairdocs.org/sdr/LS1R072592.md): Regulator · out of adj · Apr 16, 2001 · N53AG · Bell UH1H · AC Regulator
  > REGULATOR UNABLE TO HOLD ADJUSTMENT.
- [SDR LS1R072590](https://openairdocs.org/sdr/LS1R072590.md): Control Panel · inoperative · Apr 16, 2001 · N53AG · Bell UH1H · Flight Compartment Lighting
  > LIGHTS WILL NOT COME ON. CONTROL PANEL INOPERATIVE.
- [SDR LS1R071917](https://openairdocs.org/sdr/LS1R071917.md): Shaft · worn · Apr 6, 2001 · N53AG · Bell UH1H · Tail Rotor Drive Shaft
  > PART IS WORN EXCESSIVELY.
- [SDR LS1R071916](https://openairdocs.org/sdr/LS1R071916.md): Shaft · worn · Apr 6, 2001 · N53AG · Bell UH1H · Tail Rotor Drive Shaft
  > PART IS WORN EXCESSIVELY.
- [SDR LS1R066010](https://openairdocs.org/sdr/LS1R066010.md): Audio Panel · failed · Feb 17, 2000 · N53AG · Bell UH1H · Entertainment System
  > ICS BOX DOES NOT TRANSMIT.
- [SDR LS1R065943](https://openairdocs.org/sdr/LS1R065943.md): Volt Regulator · shorted · Feb 11, 2000 · N53AG · Bell UH1H · DC Regulator
  > VOLTAGE REGULATOR SHORTED OUT.
- [SDR LS1R065941](https://openairdocs.org/sdr/LS1R065941.md): Controller · failed · Feb 11, 2000 · N53AG · Bell UH1H · Interphone/Passenger Announcement (PA) System
  > INTERPHONE DOES NOT TRANSMIT.
- [SDR LS1R065936](https://openairdocs.org/sdr/LS1R065936.md): Volt Regulator · shorted · Feb 11, 2000 · N53AG · Bell UH1H · DC Regulator
  > VOLTAGE REGULATOR SHORTED OUT.
- [SDR AGQA065942](https://openairdocs.org/sdr/AGQA065942.md): Volt Regulator · inoperative · Feb 11, 2000 · N53AG · Bell UH1H · DC Regulator
  > VOLTAGE REGULATOR INOPERABLE. WILL NOT REGULATE.
- [SDR AGQA065935](https://openairdocs.org/sdr/AGQA065935.md): Volt Regulator · inoperative · Feb 11, 2000 · N53AG · Bell UH1H · DC Regulator
  > VOLTAGE REGULATOR INOPERABLE, WILL NOT REGULATE.
- [SDR AGQA065691](https://openairdocs.org/sdr/AGQA065691.md): Bearing · leaking · Jan 28, 2000 · N53AG · Bell UH1H · Main Rotor Drive System
  > BEARING IS LEAKING.
- [SDR AGQA065689](https://openairdocs.org/sdr/AGQA065689.md): Support · cracked · Jan 28, 2000 · N53AG · Bell UH1H · Fuselage Miscellaneous Structure
  > SUPPORT IS CRACKED.
- [SDR AGQA065679](https://openairdocs.org/sdr/AGQA065679.md): Coupling · chipped · Jan 28, 2000 · N53AG · Bell UH1H · Tail Rotor Gearbox
  > COUPLING HAS CHIPPED TOOTH.
- [SDR 99ZZZX2751](https://openairdocs.org/sdr/99ZZZX2751.md): Pump · damaged · Jun 17, 1999 · N53AG · Bell UH1H · Fuel Boost Pump
  > FUEL PUMP SOUNDS REAL ROUGH LIKE BEARINGS GROWLING. REMOVED AND REPLACED.
- [SDR 99ZZZX2243](https://openairdocs.org/sdr/99ZZZX2243.md): Bearing · rough · Apr 29, 1999 · N53AG · Bell UH1H · Main Rotor Head
  > ROUGH GRIP BEARING. REMOVED AND REPLACED.
- [SDR 99ZZZX241](https://openairdocs.org/sdr/99ZZZX241.md): Universal · damaged · Dec 22, 1998 · N53AG · Bell UH1H · Main Rotor Drive System
  > BEARING HAS BECOME UNSTAKED. REMOVED AND REPLACED.
- [SDR 98ZZZX4348](https://openairdocs.org/sdr/98ZZZX4348.md): Volt Regulator · failed · Oct 23, 1998 · N53AG · Bell UH1H · DC Generating System
  > VOLTAGE REGULATOR WILL NOT PRODUCE VOLTAGE.
- [SDR 98ZZZX3551](https://openairdocs.org/sdr/98ZZZX3551.md): Damper · damaged · Jul 10, 1998 · N53AG · Bell UH1H · Main Rotor Head
  > SIGHT GLASS CLOUDY. REMOVED AND REPLACED.
- [SDR 98ZZZX3550](https://openairdocs.org/sdr/98ZZZX3550.md): Gear · worn · Jul 10, 1998 · N53AG · Bell UH1H · Exterior Lighting
  > GEAR ON MOTOR SHAFT HAS WORN BUSHING ALLOWING GEAR TO DIS-ENGAGE FROM LIGHT GEAR. REMOVED AND REPLACED.
- [SDR 98ZZZX3549](https://openairdocs.org/sdr/98ZZZX3549.md): Damper · damaged · Jul 10, 1998 · N53AG · Bell UH1H · Main Rotor Head
  > SIGHT GLASS CLOUDY. REMOVED AND REPLACED.

## 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 = 'N53AG' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N53AG/reports

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