# SDR UPS202912

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N926UP](https://openairdocs.org/aircraft/N926UP), registered now
- Make and model: Boeing 727-31C
- Registry model: [Boeing 727-31C](https://openairdocs.org/model/boeing-727-31c) (OpenAirDocs)
- Aircraft serial: 19233
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Cell Cutout
- Condition: Corroded
- Location: Wings
- 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/UPS202912

## Discrepancy

DURING 'D' CHECK, MAINTENANCE FOUND FRETTING CORROSION OF FUEL CELL CUTOUT NR 7207 UPPER SURFACE AREA.  MAINTENANCE BLENDED CORROSION, TREATED, FABRICATED AND INSTALLED RING FILLERS, ALL WORK DONE PER EO 727-57-1123.

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