# SDR AALA202608255486

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2026
- Submitted: August 26, 2026
- Operation: Air carrier
- Aircraft: [N809NN](https://openairdocs.org/aircraft/N809NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33519
- Aircraft time: 50,197 hours, 21,258 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Part number: 143A9485Y35
- Condition: Corroded
- Location: Zone 100
- 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/AALA202608255486

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: FORWARD CARGO, AFT BULKHEAD LOWER ANGLE HAS EXFOLIATION CORROSION AT STATION 500L AND LEFT BUTT LINE 24 TO RIGHT BUTT LINE 24. MAINTENANCE REPLACED BULKHEAD ANGLE ASSEMBLY AT STATION 500L AND LEFT BUTT LINE 24 TO RIGHT BUTT LINE 24 PER BOEING DRAWINGS #143A9481 AND #143A7902 AND AARD 51-00-05-1.

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