# SDR 99ZZZX2979

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N5831B
- Make and model: Doug DC3C
- Registry model: [Doug DC3C](https://openairdocs.org/model/douglas-dc3c) (OpenAirDocs)
- Aircraft serial: AL42100882
- Engine: Pwa R183092
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 116733CP
- Condition: Cracked
- Location: Nr 1 Engine
- Stage of operation: CR
- Nature of condition: R, J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX2979

## Discrepancy

AFTER LEVELING OFF, ENGINE STARTED TO RUN ROUGH AND BACKFIRE.  SECURED ENGINE AND FEATHERED PROPELLER.  MAINTENANCE FOUND CYLINDER NR 1 CRACKED.  REPLACED CYLINDER WITH AN OVERHAULED UNIT.  AIRCRAFT GROUND RUN AND CHECKED SATISFACTORY.

---
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.