# SDR UPS07M50972

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 8, 2007
- Submitted: October 24, 2007
- Operation: Air carrier
- Aircraft: [N290UP](https://openairdocs.org/aircraft/N290UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48456
- Aircraft time: 78,001 hours, 12,487 cycles
- System (JASC): [5714 · Wing, Center Box](https://openairdocs.org/jasc/5714)
- Part: Structure
- Condition: Corroded
- Location: Bs 1239- 189
- 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/UPS07M50972

## Discrepancy

INSPECTION TYPE:C LEFT SIDE CENTER WING BOX TOPSIDE AT STA 1239.0 - 1189.0 X=108.0 FOUND CORROSION AROUND FASTENERS AS MARKED.  LEFT SIDE CENTER WING BOX TOPSIDE AT STA 1239.0-1189.0 X=108.0 FASTENER AS MARK & CORRODED AREAS REMOVED.  CORROSION ON UPP SKIN REMOVED.  REWORKED AREAS PROTECTED.  FPI & HFEC OPEN HOLE INSP C/OUT ON REWORKED AREA FOUND NO CRACK & NO CORROSION.  REWORKED AREAS SKIN P/N APB7441-1 MAT'L REMOVED & REMAINED, ALL FOUND EXCEED LIMITS.  FLAP PEENING C/OUT.

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