# SDR 99ZZZX2547

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 18, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N8908N](https://openairdocs.org/aircraft/N8908N), registered now
- Make and model: Piper PA-32-300
- Registry model: [Piper PA-32-300](https://openairdocs.org/model/piper-pa-32-300) (OpenAirDocs)
- Aircraft serial: 3240695
- Engine: Lyc IO540K1A5
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Impulse Coupling
- Part number: M3333
- Condition: Cracked
- Location: Magneto
- Part time: 370 hours
- Component: Slick, 6351
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX2547

## Discrepancy

WHILE CONDUCTING THE INSPECTION REQUIRED BY AD 99-04-04, CRACKS WERE DISCOVERED ON THE PAWL PLATE OF THE IMPULSE COUPLING.  THE CRACKS WERE DIFFICULT TO SEE SINCE THE AREA IS HIDDEN BY THE PAWLS.  THE PAWL SPRINGS MUST BE REMOVED FROM THE SPRING HOLES SO THE PAWL CAN BE ROTATED OUT OF THE WAY.

---
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.