# SDR 98ZZZX2207

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N23KW](https://openairdocs.org/aircraft/N23KW), registered now
- Make and model: Cessna 421C
- Registry model: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Aircraft serial: 421C0106
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Control Cable
- Part number: 50000062
- Condition: Frayed
- Location: Lt Flap Retract
- Part time: 4,251 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/98ZZZX2207

## Discrepancy

CESSNA TWIN ENGINE AIRCRAFT HAVE EXPERIENCED A HISTORY OF FLAP CABLE FRAYING, ELECTED TO ROUTINELY REPLACE ALL FLAP CABLES ON A 421C HAVING 4,251 HOURS TT.  TWO CABLES WERE FOUND IN UNAIRWORTY CONDITION.  THE CABLE FRAYING WAS NOT VISIBLE UPON INSPECTION PRIOR TO CABLE REMOVAL.

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