# SDR ASAA1149504

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2011
- Submitted: April 25, 2011
- Operation: Air carrier
- Aircraft: [N709AS](https://openairdocs.org/aircraft/N709AS), registered now
- Make and model: Boeing 737490
- Aircraft serial: 28896
- Aircraft time: 35,855 hours, 21,974 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Stiffener
- Part number: 6546568519
- Condition: Corroded
- Location: Fuselage
- 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/ASAA1149504

## Discrepancy

CORROSION ON BL 0 STIFFENER AT BS 1016 (AFT PRESSURE BULKHEAD).  REMOVED CORRODED STIFFENER AND INSTALLED REPAIR PARTS IAW ASA EA 400 53EA 5300.

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