# SDR 99ZZZX2976

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N12GF](https://openairdocs.org/aircraft/N12GF), registered now
- Make and model: Piper PA-31P
- Registry model: [Piper PA-31P](https://openairdocs.org/model/piper-pa-31p) (OpenAirDocs)
- Aircraft serial: 31P7300134
- System (JASC): [7810 · Engine Collector/Tailpipe/Nozzle](https://openairdocs.org/jasc/7810)
- Part: Exhaust Pipe
- Part number: 78008
- Condition: Wrong Part
- Location: Rt Engine
- 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/99ZZZX2976

## Discrepancy

PILOT REPORTED LOW MANIFOLD PRESSURE IN-FLIGHT ON RIGHT ENGINE.  INVESTIGATION SHOWED THE LEFT EXHAUST ADAPTER P/N LW10798 CRACKED AT MOUNTING FLANGE.  REPLACED WITH NEW PART AND FOUND INTERCONNECTING EXHAUST PIPE P/N 78008 WOULD NOT FIT WITHOUT GROSS DISTORTION.

---
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.