# SDR AALA202403254170

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2024
- Submitted: March 25, 2024
- Operation: Air carrier
- Aircraft: [N890NN](https://openairdocs.org/aircraft/N890NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31143
- Aircraft time: 34,973 hours, 14,929 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 140A9872U5
- Condition: Corroded
- Location: Bs 947-867
- 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/AALA202403254170

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION ON AFT PASSENGER CABIN FLOOR STRUCTURE INTERCOSTAL BETWEEN BS 947 AND BS 967, LBL 16. REPLACED INTERCOSTAL PER AARD 51-00-05-1.

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