# SDR KCSA071194

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2007
- Submitted: June 20, 2007
- Operation: Air carrier
- Aircraft: N717CK
- Make and model: Boeing 747123
- Aircraft serial: 20325
- Aircraft time: 79,293 hours, 22,414 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Corroded
- 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/KCSA071194

## Discrepancy

STA 990 ABOVE NR 2 RAM AIR INLET DUCT, LOWER SIDE OF CENTER WING TANK HAS AREA OF CORROSION AT LBL 82.

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