# SDR AALA202111239044

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2021
- Submitted: November 23, 2021
- Operation: Air carrier
- Aircraft: [N981NN](https://openairdocs.org/aircraft/N981NN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 31230
- Aircraft time: 17,125 hours, 6,942 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A5504
- Condition: Corroded
- Location: Zone 100 - Fuse
- 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/AALA202111239044

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION ON AFT LAV AREA TRANSVERSE FLOOR BEAM LOCATED AT STA 947.5 AND LBL 24.75. REPAIRED FLOOR BEAM PER EA 326475.

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