# SDR 2023F00073

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2023
- Submitted: March 3, 2023
- Operation: General aviation
- Aircraft: [N972PF](https://openairdocs.org/aircraft/N972PF), registered now
- Make and model: Raythn 390
- Aircraft serial: RB038
- Aircraft time: 2,461 hours, 1,987 cycles
- System (JASC): [5400 · Nacelle/Pylon Structure](https://openairdocs.org/jasc/5400)
- Part: Firewall
- Condition: Cracked
- Location: Zone 400
- Stage of operation: IN
- How discovered: V
- Nature of condition: P, L, O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023F00073

## Discrepancy

WHILE CHANGING #1 ENGINE MOUNTS A CRACK WAS FOUND IN THE PYLON FIREWALL.

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