# SDR UPS08M53377

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2008
- Submitted: September 29, 2008
- Operation: Air carrier
- Aircraft: [N287UP](https://openairdocs.org/aircraft/N287UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48539
- Aircraft time: 65,903 hours, 9,952 cycles
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Stiffener
- Condition: Broken
- Location: Lt 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/UPS08M53377

## Discrepancy

INSPECTION TYPE:1C BROKEN STIFFENING RIB ON BOTTOM OF LT WING UPPER I/B LEADING EDGE PANEL 516ET.  REMOVED AND REPLACED 2 EACH Z-STIFFENERS IAW SRM 51-33-01, 51-21-1, 51-35-1.

---
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.