# SDR 2010F00012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2010
- Submitted: January 20, 2010
- Operation: General aviation
- Aircraft: [N156AM](https://openairdocs.org/aircraft/N156AM), registered now
- Make and model: Bolkms BK117B1
- Aircraft serial: 7173
- Aircraft time: 10,996 hours, 44,693 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Skin
- Condition: Cracked
- Location: Zone 400
- Part time: 10,996 hours, 44,693 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2010F00012

## Discrepancy

AFTER REMOVAL OF NR 1 ENGINE, FOUND THE FIRE EXTINGUISHER TUBE HAD CHAFED THROUGH THE ENGINE DECK SKIN 130MM LONG 5MM WIDE AND A 34MM CRACK IN THE MIDDLE.

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