# SDR USAA991250

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N417US](https://openairdocs.org/aircraft/N417US), registered now
- Make and model: Boeing 737401
- Aircraft serial: 23984
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Corroded
- Location: Bs 986
- Part time: 31,191 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/USAA991250

## Discrepancy

CLT - DURING Q-1 CHECK VISUAL INSPECTION, FOUND CORROSION NUMEROUS AREAS .500 INCH FLOORBEAM BS 986 UPPER SURFACE OF T-CAP UPPER CHORD.  CORROSION LEVEL 2.  CORROSION TASK NR C53-107-02.  INSTALLED REPLACEMENT T-CAP PER TR 53-60-01.  (M)

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