# SDR UPS00434064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2000
- Submitted: October 13, 2000
- Operation: Air carrier
- Aircraft: [N691UP](https://openairdocs.org/aircraft/N691UP), registered now
- Make and model: Boeing 747121
- Aircraft serial: 19641
- Aircraft time: 95,273 hours, 22,812 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Doubler
- 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/UPS00434064

## Discrepancy

INSPECTION TYPE:C, LT WING CORROSION ON UPPER SURFACE OF FIXED L/E BULL NOSE AT WS 397 AT UPPER T/E.  REPAIR CARRIED OUT IAW Q/NOTE 35/2000 AND SRM 57-30-04 FIG 2, 0.04 301 CRES 1/2 HARD DOUBLER CAD PLATED.

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