# SDR USAA060313

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2006
- Submitted: February 22, 2006
- Operation: Air carrier
- Aircraft: [N423US](https://openairdocs.org/aircraft/N423US), registered now
- Make and model: Boeing 737401
- Aircraft serial: 23990
- Aircraft time: 46,747 hours, 46,747 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- 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/USAA060313

## Discrepancy

FOUND UPPER CHORD ANGLE CORRODED RBL 40.875 BETWEEN BS 578 AND BS 639.  REMOVED CORRODED CORD ANGLE, SRM 51-10-02 AND BOEING DRAWING 65-45413   DEFECT SIZE: 1".

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