# SDR 20001031SH002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 1999
- Submitted: October 31, 2000
- Operation: General aviation
- Aircraft: [N6003Y](https://openairdocs.org/aircraft/N6003Y), registered now
- Make and model: Beech 76
- Registry model: [Beech 76](https://openairdocs.org/model/beech-76) (OpenAirDocs)
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Part number: 1051000102
- Condition: Cracked
- Location: Lt Wing
- Part time: 3,747 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/20001031SH002

## Discrepancy

DURING A 100-HOUR INSPECTION INTERVAL, CRACKS WERE FOUND IN THE WING RIBS ADJACENT TO THE LEFT INBOARD AND OUTBOARD AILERON HINGE BEARING ATTACHMENT BRACKETS P/N 105-100011-51.  BOTH CRACKS BEGAN AT THE AFT EDGE OF EACH RIB AND PROCEEDED FORWARD TO THE BOTTOM ATTACHING RIVET.  REPAIRS MADE BY FABRICATING DOUBLERS FOR EACH RIB. (X)

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