# SDR 98ZZZX1143

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N340TS](https://openairdocs.org/aircraft/N340TS), registered now
- Make and model: Cessna 340A
- Registry model: [Cessna 340A](https://openairdocs.org/model/cessna-340a) (OpenAirDocs)
- Aircraft serial: 340A0999
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Heat Shield
- Part number: 56560061
- Condition: Burned
- Location: Lt Firewall
- Stage of operation: IN
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX1143

## Discrepancy

AFTER REMOVAL OF THE LEFT NACELLE COVER AND FUEL CELL, SEVERE CORROSION WAS FOUND.  ALSO, AFT SIDE OF LT FIREWALL DISCOLORED FROM HEAT AND THE FUEL CELL HEAT SHIELD IS BURNED THROUGH.  THE HEAT DAMAGE IS BELIEVED TO BE CAUSED BY A PREVIOUS EXHAUST FAILURE.  THIS AIRCRAFT IS WELL MAINTAINED, HANGARED MOST OF THE YEAR, AND NOT HIGH TIME.  SUBMITTER BELIEVES THIS IS A SERIOUS PROBLEM THAT MAY GO UNDETECTED ON MANY SIMILAR AIRCRAFT.

---
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.