# SDR USAA2011091500007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2011
- Submitted: September 15, 2011
- Operation: Air carrier
- Aircraft: [N206UW](https://openairdocs.org/aircraft/N206UW), registered now
- Make and model: Boeing 757-2B7
- Registry model: [Boeing 757-2B7](https://openairdocs.org/model/boeing-757-2b7) (OpenAirDocs)
- Aircraft serial: 27808
- Aircraft time: 56,078 hours, 20,592 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 146N52131
- Condition: Corroded
- Location: Fuselage
- 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/USAA2011091500007

## Discrepancy

C3 CHECK - LEVEL 2 GALVANIC CORROSION ON UPPER CHORD OF INTERCOSTAL BETWEEN BS1361 TO BS 1377, RBL 425.  REPLACED UPPER CHORD OF INTERCOSTAL BETWEEN BS 1361 TO BS 1377, RBL 425 IAW B757 SRM SRM 51-40-02-0G.

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