# SDR UPS08M51383

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 2007
- Submitted: January 9, 2008
- Operation: Air carrier
- Aircraft: [N291UP](https://openairdocs.org/aircraft/N291UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48477
- Aircraft time: 45,846 hours, 5,703 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Condition: Cracked
- Location: Rt Wing
- 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/UPS08M51383

## Discrepancy

INSPECTION TYPE:C RIGHT WING L/E CAVITY, L/E RIB LOWER END SUSPECT CRACK AT 6 INCHES I/B OF SLAT TRACK NR 3 AS MARKED.  HFEC INSPECTION C/O AT I/B OF SLAT TRACK NR 3, FOUND CRACK AS MARKED APPROX 1 INCH LENGTH.  RIGHT WING L/E CAVITY, L/E LOWER RIB REMOVED PER SRM 51-31-01 VII R35.  NEW RIB FAB PER BOEING DRW ARB3006.  NEW RIB HEAT-TREATED, HOLES PICKED-UP, PROTECTED & PAINTED.  NEW RIB INSTALLED PER SRM 51-31-0 1 VII R35.

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