# SDR CA981014009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Piper PA-31T
- Registry model: [Piper PA-31T](https://openairdocs.org/model/piper-pa-31t) (OpenAirDocs)
- Engine: Pwa PT6A28
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Tube
- Part number: A96040035
- Condition: Cracked
- Location: Heater
- Part time: 482 hours
- Component: Janitrol, FR10E214EL
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA981014009

## Discrepancy

(CAN) HEATER RUNNING RICHER AND LEAVING A HEAVIER THAN NORMAL EXHAUST DEPOSIT ON THE FUSELAGE IN-FLIGHT.  ON GROUND, IT WOULD BLOW OUT CARBON DEPOSIT FROM THE EXHAUST STACK AND EXHAUST DARKER THAN NORMAL DECAY TEST CARRIED OUT.  HEATER WAS FACTORY REMANUFACTURED WITH EXTENDED LIFE COMBUSTION TUBE.

---
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.