# SDR P9IA096002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N12305
- Make and model: Boeing 727231
- Aircraft serial: 19562
- System (JASC): [4980 · APU Exhaust System](https://openairdocs.org/jasc/4980)
- Part: Exhaust Clamp
- Part number: 4353919M
- Condition: Failed
- Location: Apu
- Part time: 63,828 hours
- Stage of operation: IN
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P9IA096002

## Discrepancy

DURING GROUND OPERATION OF APU, THE FIRE WARNING ACTIVATED AND THE APU AUTO SHUT DOWN WITH SMOKE COMING OUT OF THE APU SHROUD.  INSPECTION FOUND CLAMP BROKEN FOR INNER EXHAUST DUCT AT SPOT WELD.  INSPECTED APU, NO OTHER DAMAGE NOTED.  REPLACED O-RING AND CLAMP.  RUN AND OPS CHECKS GOOD, MM 49-00.  (X)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.