# SDR AALA20120305011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2012
- Submitted: March 7, 2012
- Operation: Air carrier
- Aircraft: [N934AN](https://openairdocs.org/aircraft/N934AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29531
- Aircraft time: 35,673 hours, 14,942 cycles
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Stiffener
- Condition: Cracked
- Location: Lt Wing
- 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/AALA20120305011

## Discrepancy

LEFT VERTICAL STIFFENER CRACKED AT LOWER END JUST OUTBOARD OF PACK EXHAUST CUTOUT, AFT SIDE OF BULKHEAD. INSTALLED VERTICAL STIFFENER PER AARD 51-00-05-1 AND BOEING DRAWING NUMBERS 111A1000 AND 111A1308.

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