# SDR ASAA2018091926164

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2018
- Submitted: September 19, 2018
- Operation: Air carrier
- Aircraft: [N564AS](https://openairdocs.org/aircraft/N564AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35103
- Aircraft time: 45,573 hours, 13,761 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A550419
- Condition: Corroded
- Location: Fuselage
- 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/ASAA2018091926164

## Discrepancy

MAIN CABIN FLOORBEAM AT BODY STATION 947.5 CORRODED AT LBL 16. GROUNDED - YES. REMOVED CORROSION IAW SRM 53-70-15-1A-1 FIG 104 DET D. ORIGINAL THICKNESS .180" REMOVED, .059" REMOVING .121" FOUND TO BE OUT OF LIMITS. FABRICATED, MODIFIED, ALODINED, PRIMED, AND INSTALLED REPAIR T-CHORD, ANGLES, STRAPS AND FILLERS IAW SRM 53-70-51-2R-5 REPAIR 5.

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