# SDR ASAA2022081339769

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2022
- Submitted: September 6, 2022
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 56,158 hours, 16,482 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Floor Support
- Part number: 147A5709U5
- Condition: Corroded
- 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/ASAA2022081339769

## Discrepancy

LEFT SIDE CABIN BETWEEN STATION -900 LBL -1 FLOOR BEAM HAS CORROSION. GROUNDED - YES. EVALED CORROSION.FASTENER HOLE ELONGATED BEYOND ALLOWABLE LIMITS IAW B737-800 SRM 53-70-51-1A-1.LOCATED DRILLED AND INSTALLED NEW FLOOR SUPPORT IAW BOEING DWG 147A5700 REV B DOT REMOVED.ORIG THICK 0.080, 100 PERCENT MAT LOSS NOTED AT 0.365" LENGTH, 0.470" WIDTH.

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