# SDR 20010419CW001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2001
- Submitted: April 19, 2001
- Operation: General aviation
- Aircraft: [N97662](https://openairdocs.org/aircraft/N97662), registered now
- Make and model: Cessna 172P
- Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (OpenAirDocs)
- Aircraft serial: 17276219
- Engine: Lyc O320D2J
- System (JASC): [2701 · Control Column Section](https://openairdocs.org/jasc/2701)
- Part: Yoke
- Part number: 05600145
- Condition: Corroded
- Location: Control Column
- Part time: 12,525 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/20010419CW001

## Discrepancy

MAINTENANCE TECH FOUND AREA BELOW PIVET BOLT EXCESSIVELY COVERED TO THE POINT OF EXFOLIATION.  WHEN DRILLING THE INSPECTION HOLE CALLED FOR, THE DRILL BIT ACTUALLY FELL THROUGH AFTER APPROXIMATELY 2 TURNS OF THE BIT.  CENTRAL YOKE WAS REPLACED AT THIS TIME.  TECH STRONGLY RECOMMENDS THIS PROCEDURE SHOULD BECOME AN AIRWORTHINESS DIRECTIVE.

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