# SDR 2011FA0000752

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2011
- Submitted: November 18, 2011
- Operation: General aviation
- Aircraft: [N423RM](https://openairdocs.org/aircraft/N423RM), 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: 2843527
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Button
- Part number: LW12892
- Condition: Broken
- Location: Rocker Shaft
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2011FA0000752

## Discrepancy

ROCKER SHAFT THRUST BUTTON, PN LW12892.  4 OF THE 8 INSTALLED WERE BROKEN WHEN VALVE LOUVERS WERE REMOVED TO CHANGE VALVE LOUVER GASKETS.

---
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.