# SDR FQAR20150528074

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2015
- Submitted: June 8, 2015
- Operation: General aviation
- Aircraft: [N294PA](https://openairdocs.org/aircraft/N294PA), registered now
- Make and model: Piper PA-28-181
- Registry model: [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181) (OpenAirDocs)
- Aircraft serial: 2843504
- Aircraft time: 14,791 hours
- Engine: Lyc O360A4M
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: SL36006W20AP
- Part serial: 366WH1315800
- Condition: Cracked
- Location: Nr 4
- Part time: 1,632 hours
- Stage of operation: IN
- How discovered: B
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FQAR20150528074

## Discrepancy

BOROSCOPE INSPECTION INDICATED CRACKING IN THE RT ENGINE NR 4 CYLINDER HEAD.  AFTER THE CYLINDER WAS REMOVED, CRACKS WERE OBSERVED TO THE SIDE OF THE LOWER SPARK PLUG HOLE.  THE CYLINDER HEAD CASTING NR C-1440.

---
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.