# SDR USAA2011061400031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2011
- Submitted: June 15, 2011
- Operation: Air carrier
- Aircraft: N420US
- Make and model: Boeing 737401
- Aircraft serial: 23987
- Aircraft time: 60,775 hours, 40,896 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Part number: 65499065
- Condition: Cracked
- Location: Fuselage
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2011061400031

## Discrepancy

CLT - Q6 - CRACK ON FRAME AT VERTICAL SHELF AT BS 1112 FROM INSIDE HORIZONTAL STAB TORQUE BOX AREA.  REPAIRED FRAME AT VERTICAL SHELF AT BS 1112  IAW B737 SRM 51-70-11.

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