# SDR UPS06448109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2006
- Submitted: October 2, 2006
- Operation: Air carrier
- Aircraft: N682UP
- Make and model: Boeing 747121
- Aircraft serial: 20349
- Aircraft time: 104,700 hours, 26,436 cycles
- System (JASC): [5714 · Wing, Center Box](https://openairdocs.org/jasc/5714)
- Part: Skin
- Condition: Corroded
- Location: Bs 1237-1240
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS06448109

## Discrepancy

BS 1237-1240 LBL68-74 WING CTR SECTION UPPER SKIN CORROSION.  CORROSION BLEND OUT 0.045" BY 3" BY 4" EXCEED SRM LIMIT.  BS 1237-1240 LBL68-74 WING CTR SECTION UPPER SKIN CORRODED AREA REPAIRED AS PER RS R57-14-35592 AND UPS ENGINEERING FILE NUMBER 747-57-20108.

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