# SDR UPS07M49090

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2006
- Submitted: February 2, 2007
- Operation: Air carrier
- Aircraft: [N286UP](https://openairdocs.org/aircraft/N286UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48453
- Aircraft time: 63,404 hours, 9,612 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Corroded
- Location: Lt Wing
- 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/UPS07M49090

## Discrepancy

INSPECTION TYPE:C LEFT WING - UPPER SKIN AT AFT SPAR, SKIN BULGING (CORROSION) IN 3 DIFFERENT AREAS.  REAR SPAR XORS 683, 738, 735, 825 CORR REMOVED FOUND WITHIN LIMIT PER SRM 57-20-00 FIG 16 R38VI.  XORS 799 CORR REMOVED EXCEED LIMIT PER SRM 57-20-00 FIG 6VIR38, MATL REMOVED TO KNIFE EDGE COND TRIMMED OUT PER EN1396-06.  HFEC C/O IAW DACNDTSPMR12PT06-10-01.001 NO CRACK EVIDENT.  FAB REPAIR DOUBLER & FILLER PER EN1396-06.  REPAIR PARTS INSTALLED PER EN1396-06.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.