# SDR UPS203080

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N904UP](https://openairdocs.org/aircraft/N904UP), registered now
- Make and model: Boeing 727-51C
- Registry model: [Boeing 727-51C](https://openairdocs.org/model/boeing-727-51c) (OpenAirDocs)
- Aircraft serial: 18946
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar Chord
- Condition: Corrosion
- Location: Fs 870
- 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/UPS203080

## Discrepancy

WHILE IN C-CHECK, MAINTENANCE FOUND CORROSION ON THE CENTER WING TANK UPPER SPAR CHORD AT STATION 870 AND LBL 37 TO 40.  MAINTENANCE FABRICATED AND INSTALLED REPAIR PER SRM 51-10-7, 51-30-2 AND 51-10-2.

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