# SDR AALA20130521003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2013
- Submitted: May 21, 2013
- Operation: Air carrier
- Aircraft: [N968AN](https://openairdocs.org/aircraft/N968AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30095
- Aircraft time: 36,952 hours, 15,099 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Stiffener
- Condition: Corroded
- Location: Zone 300
- 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/AALA20130521003

## Discrepancy

AUXILIARY POWER UNIT COMPARTMENT, RT BS 1125, VERTICAL STIFFENER IS CORRODED AT AFT END OF INLET CUTOUT. REMOVED CORRODED STIFFENER AND INSTALLED NEW VERTICAL STIFFENER AT STATION 1125 AT APU INLET IAW DWG 148A8650 AND AARD 51-10-05-1.

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