# SDR 20010423CW018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2001
- Submitted: April 23, 2001
- Operation: Air carrier
- Aircraft: N171N
- Make and model: Cessna 421C
- Registry model: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Aircraft serial: 421C0461
- Engine: Cont GTSIO520*
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Wire
- Condition: Broken
- Location: Te Flaps
- 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/20010423CW018

## Discrepancy

FLAPS FAILED AND TRAVELED BEYOND STOP SWITCHES.  ONLY THING THAT WAS FOUND WAS A BROKEN WIRE WHERE THE QUADRENT SWITCHES ARE LOCATED.  MANY PARTS HAD TO BE REPLACED.  BRACKETS, PULLEYS, RODS CABLES, CHAINS, BELLCRANKS, ACTUATOR AND BOLTS.  AFTER REPAIR, OPERATION WAS NORMAL.

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