# SDR UPS97222574

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N909UP](https://openairdocs.org/aircraft/N909UP), registered now
- Make and model: Boeing 727-27C
- Registry model: [Boeing 727-27C](https://openairdocs.org/model/boeing-727-27c) (OpenAirDocs)
- Aircraft serial: 19115
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Stiffener
- Part number: 6516202
- Condition: Corroded
- Location: Rear Spar
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS97222574

## Discrepancy

INSPECTION TYPE-SI, WHILE WORKING CUST CARD 510847 FOUND ALL STIFFENERS ON THE REAR SPAR WEB TO BE CORRODED.  REMOVED CORRODED STIFFENERS, PROCURED NEW STIFFENERS AND INSTALLED IAW SRM 51-30-2.

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