# SDR USAA990927

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N255AU
- Make and model: Boeing 737201
- Aircraft serial: 22797
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Stiffener
- Condition: Corroded
- Location: Bs 540
- Part time: 44,852 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA990927

## Discrepancy

TPA - DURING CX-5 CHECK VISUAL INSPECTION, FOUND A 2 INCH BY 3 INCH AREA OF CORROSION, LOWER END OF STIFFENER, STATION 540, RBL 14.90.  CORROSION LEVEL 1.  INSTALLED REPAIR DOUBLER PER SRM 51-40-4 FIG 1..  (M)

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