# SDR 2004FA0000642

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2004
- Submitted: August 17, 2004
- Operation: General aviation
- Aircraft: [N4355F](https://openairdocs.org/aircraft/N4355F), registered now
- Make and model: Piper PA-28-235
- Registry model: [Piper PA-28-235](https://openairdocs.org/model/piper-pa-28-235) (OpenAirDocs)
- Aircraft serial: 287610097
- Engine: Lyc O540B4B5
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Impulse Coupling
- Condition: Broken
- Location: Magneto
- Part time: 12,113 hours
- Component: Magneto
- Component part number: 6355
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2004FA0000642

## Discrepancy

IMPULSE COUPLING FAILED LOCKING MAGNETO, RESULTING IN FAILURE OF GEARS IN ACCESSORY CASE, PN 13S18647, 71652 AND LW-19096 GEARS.  FAILURE OCCURRED WHILE FLYING IN PATTERN.  (EA23200400620)

---
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.