# SDR 2026FA0000693

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 2026
- Submitted: September 15, 2026
- Operation: General aviation
- System (JASC): [8500 · Engine (Reciprocating)](https://openairdocs.org/jasc/8500)
- Part: Engine
- Condition: Fod
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000693

## Discrepancy

DURING THE DISASSEMBLY OF ENGINE MM03 (ESN : 577403), THE MECHANIC DISCOVERED A FOD INSIDE THE ENGINE. A 5/16 WRENCH WAS FOUND SEVERELY CRUSHED AND JAMMED BETWEEN THE SM53 INNER AIR SEAL AND THE SM54 DISK.

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