# SDR 2008FA0000044

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 11, 2008
- Submitted: January 22, 2008
- Operation: General aviation
- Aircraft: [N25RH](https://openairdocs.org/aircraft/N25RH), registered now
- Make and model: Piper PA-60-601P
- Registry model: [Piper PA-60-601P](https://openairdocs.org/model/piper-pa-60-601p) (OpenAirDocs)
- Aircraft serial: 61P066979633
- Engine: Lyc IO540*
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Pushrod
- Part number: 600050507
- Condition: Corroded
- Location: Engine
- Part time: 2,446 hours
- 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/2008FA0000044

## Discrepancy

THE AREA IN WHICH THE CORRODED SECTION OF THE PUSHROD ASSY IS LOCATED IS PRONE TO EXHAUST CONTAMINATION SINCE IT IS DIRECTLY BEHIND THE ENGINE EXHAUST PIPE OUTLETS.  THIS AREA NEEDS TO BE KEPT CLEAN OF EXHAUST RESIDUE AND CORROSION PREVENTATIVE APPLIED.  OLDER TUBES WERE ALODINED ALUMINUM.  NEWER TUBES ARE ZINC CHROMATED ALUMINUM BUT ARE STILL SUSCEPTIBLE TO CORROSION.  SB 600-122 ADDRESS THIS SUBJECT.  INSPECTION IS DONE THROUGH FLAP ACTUATOR ACCESS PANEL.  (K)

---
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.