# SDR AALA202212200431

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 5, 2022
- Submitted: December 20, 2022
- Operation: Air carrier
- Aircraft: [N864NN](https://openairdocs.org/aircraft/N864NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31111
- Aircraft time: 35,671 hours, 14,833 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 147A566021
- Condition: Corroded
- Location: Bs 960 Lbl 50
- 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/AALA202212200431

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION FOUND ON FLOORBOARD SUPPORT AT STA 960 AFT ENTRY DOOR BY FORWARD DRAIN AND LEFT BUTT LINE 50. REMOVED AND REPLACED INTERCOSTAL PER AARD 51-00-05-1.

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