# SDR 96ZZZM1055

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N434TA](https://openairdocs.org/aircraft/N434TA), registered now
- Make and model: Doug DC-6B
- Registry model: [Doug DC-6B](https://openairdocs.org/model/douglas-dc-6b) (OpenAirDocs)
- Aircraft serial: 44434
- Engine: Pwa CB3
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Assy
- Part number: 327627
- Condition: Ringland Failure
- Location: Nr 3 Engine
- Stage of operation: CR
- Nature of condition: E
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZM1055

## Discrepancy

FLT 601 - SHUT DOWN NR 3 ENGINE AT 2030Z DUE TO BACKFIRING.  AIRCRAFT RETURNED TO ANC.  MX REPLACED NR 18 CYLINDER ASSY DUE TO RINGLAND FAILURE.  AIRCRAFT RETURNED TO SERVICE.  (M)

---
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.