# SDR UIEA200600025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2006
- Submitted: March 16, 2006
- Operation: Air carrier
- Aircraft: [N512MC](https://openairdocs.org/aircraft/N512MC), registered now
- Make and model: Boeing 747230B
- Aircraft serial: 21220
- Aircraft time: 111,084 hours, 20,534 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Bs 1140
- 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/UIEA200600025

## Discrepancy

FOUND CORROSION ON THE CENTER WING TANK UPPER SKIN UPPER SURFACE, AT BS 1140 LBL 120.  REWORKED UPPER SKIN PANEL IAW SRM 51-10-01.  FOUND MATERIAL LOSS WITHIN LIMITS PER SRM 57-10-01 FIG 1.

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