# SDR 98ZZZX1518

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N7255L](https://openairdocs.org/aircraft/N7255L), registered now
- Make and model: Gulstm AA1A
- Aircraft serial: AA1A0455
- Engine: Lyc O235C2C
- System (JASC): [8550 · Reciprocating Engine Oil System](https://openairdocs.org/jasc/8550)
- Part: Oil Pump
- Condition: Wrong Gears
- Location: Engine Oil
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX1518

## Discrepancy

ANNUAL INSPECTION RECORD CHECK FOUND AD 75-08-09 C/W NOV 1976.  REPLACED GEARS 6-7-78.  ENGINE OVERHAULED, NO DETAILS GIVEN.  6-30-79 - ENGINE REMOVED AND STORED.  TT 697.4 HOURS.  6-30-84.  ENGINE INSTALLED IN N 7255L.  AD 81-18-04R2.  SIGNED OFF ON AD LIST AS DUE AT 2,000 HRS OR OVERHAUL.  IN C/W AD 96-09-10, ENGINE REMOVED AND GEARS INSPECTED AND FOUND TO BE SINTERED IRON.  BOTH GEARS REPLACED WITH HARDENED STEEL.

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