# SDR HYI2003F00004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 27, 2003
- Submitted: April 21, 2003
- Operation: Air carrier
- Aircraft: [N548GA](https://openairdocs.org/aircraft/N548GA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0653
- Engine: Cont TSIO520VB
- System (JASC): [8550 · Reciprocating Engine Oil System](https://openairdocs.org/jasc/8550)
- Part: Pin
- Part number: 535634
- Condition: Sheared
- Location: Oil Pump Drive
- Part time: 167 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYI2003F00004

## Discrepancy

TACHOMETER INOPERATIVE, RT DRIVE GEAR DOWEL PIN BROKE ON OIL PUMP GEAR.  REMOVED OIL PUMP HOUSING COVER, REPLACED DRIVE PIN AND REINSTALLED COVER.

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