# SDR UPS99228559

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N933UP](https://openairdocs.org/aircraft/N933UP), registered now
- Make and model: Boeing 727-25C
- Registry model: [Boeing 727-25C](https://openairdocs.org/model/boeing-727-25c) (OpenAirDocs)
- Aircraft serial: 19857
- System (JASC): [5753 · Trailing Edge Flaps](https://openairdocs.org/jasc/5753)
- Part: Foreflap
- Part number: 6521631143
- Condition: Corroded
- Location: Lt Te Flap
- 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/UPS99228559

## Discrepancy

INSPECTION TYPE-C, LEFT WING O/B FOREFLAP HAS .25 X 3.5 AREA OF DELAMINATION.  TAP TESTED, FOUND ADDITIONAL DELAMINATION.  FOUND CORRSION ON SPAR.  REPLACED O/B FOREFLAP.

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