# SDR AALA202103249012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2021
- Submitted: March 25, 2021
- Operation: Air carrier
- Aircraft: [N833NN](https://openairdocs.org/aircraft/N833NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31093
- Aircraft time: 32,540 hours, 13,256 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Bs 951-967
- 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/AALA202103249012

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION OF INTERCOSTAL BETWEEN STA 951 AND STA 967 AT LBL 24, MEASURING L=1.0 IN, W=1.0 IN, D=0.038 IN. REPLACED INTERCOSTAL WITH NEW IAW SRM 51-40-02.

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