# SDR 2003FA0000621

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2003
- Submitted: June 9, 2003
- Operation: General aviation
- Aircraft: [N7252T](https://openairdocs.org/aircraft/N7252T), registered now
- Make and model: Beech A36
- Registry model: [Beech A36](https://openairdocs.org/model/beech-a36) (OpenAirDocs)
- Aircraft serial: E2261
- Engine: Cont IO550B
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: AEC631397STA
- Part serial: 24702
- Condition: Cracked
- Location: Engine
- Part time: 79 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2003FA0000621

## Discrepancy

6/1/02 SIX NEW ECI CYLINDER ASSY AEC631397STA INSTALLED.  11/15/02 NR 4 CYL CRACKED AFTER 171 HOURS OF SERVICE AND DAMAGED NR 2 CYL, BOTH OF WHICH WERE REPLACED.  2/20/03 NR 2 CYL CRACKED AFTER 79 HOURS OF SERVICE.  4/4/03 NR 4 CYL CRACKED AFTER 99 HOURS OF SERVICE.  6/5/03 FOUND NR 2 PISTON RING LAND AREA CRACKED AND DAMAGED SKIRT, CLOSER EXAMINATION REVEALED THE PISTON HAD NOT RECEIVED SOME MACHINING OPERATIONS AND THE SKIRT HAD CONTACTED THE CONNECTING ROD OF AN ADJACENT CYLINDER.

---
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.