# SDR AALA202209065905

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2022
- Submitted: September 6, 2022
- Operation: Air carrier
- Aircraft: [N850NN](https://openairdocs.org/aircraft/N850NN), registered now
- Make and model: Boeing 737
- Aircraft serial: 40580
- Aircraft time: 35,969 hours, 14,768 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- 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/AALA202209065905

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION FOUND ON UPPER FLANGE OF FLOOR BEAM AT STA 947.5 AND LEFT BUTT LINE 8. INSTALLED ANGLE DOUBLERS AND STRAPS PER SRM 53-00-51-2R-1.

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