# SDR IPXA2021013065087

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 11, 2021
- Submitted: February 1, 2021
- Operation: Air carrier
- Aircraft: [N255UP](https://openairdocs.org/aircraft/N255UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48404
- Aircraft time: 88,229 hours, 19,093 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Stiffener
- Part number: ARB29187
- Condition: Cracked
- Location: Le Wing Rib
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2021013065087

## Discrepancy

INSPECTION TYPE: 4C LT WING FIXED LE RIB STIFFENER AT STA XOS 542 IS CRACKED.  R & R CRACKED LT WING.  FIXED LE RIB STIFFENER AT STA XOS 542 IAW MD-11 SRM 51-33-01.  MINOR

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