# SDR UPS01236811

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2001
- Submitted: September 10, 2001
- Operation: Air carrier
- Aircraft: [N916UP](https://openairdocs.org/aircraft/N916UP), registered now
- Make and model: Boeing 727172C
- Aircraft serial: 19808
- Aircraft time: 46,642 hours, 37,942 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar Cap
- Condition: Corroded
- 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/UPS01236811

## Discrepancy

INSPECTION TYPE:C LT WING ON INSPECTION OF LEADING EDGE TO FRONT SPAR JOINT, CORROSION  FOUND IN UPPER CAP OF SPAR AT FRONT SPAR STN189. CORROSION REMOVED IAW SRM , HFEC AREA AND NO DEFECTS FOUND, CORROSION  BLEND FOUND TO BE OUTSIDE LIMITS, UPPER FRONT SPAR REPAIRED IAW SRM  57-10-6 FIG2 AREA LEAK CHECKED SATIS.

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