# SDR HYIA20181003002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2018
- Submitted: October 3, 2018
- Operation: Air carrier
- Aircraft: [N771EA](https://openairdocs.org/aircraft/N771EA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0046
- Aircraft time: 29,756 hours, 36,390 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Part number: 512211556
- Condition: Cracked
- Location: Rt Wing
- Part time: 29,756 hours, 36,390 cycles
- 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/HYIA20181003002

## Discrepancy

DURING MAINTENANCE A CRACK WAS FOUND ON THE RIGHT HAND CLOSE OUT RIB LOCATED AT RIGHT WING STATION 106.79 (P/N: 5122115-56). THIS CRACK STARTS FROM A HOLE IN THE FORWARD ROW OF FASTENERS COMMON TO THE AFT TRUNNION PLATE AND TRAVELS FORWARD APPROXIMATELY .595 INCHES. THIS RIB WILL BE REPLACED WITH A FACTORY NEW PART.

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