# SDR ASAA2022050138384

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2022
- Submitted: May 20, 2022
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 55,677 hours, 16,326 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A550411
- Part serial: NA
- 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/ASAA2022050138384

## Discrepancy

STA 947.5 FLOORBEAM, BUTTLINE 45R HAS CORROSION. GROUNDED - YES. EVALUATED CORROSION.ORIGINAL T .180"T REMOVED .028"T REMAIN .152"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1.REMOVED CORRODED SECTION AND SURROUNDING STRUCTURE IAW B737-800 SRM 51-40-02FABRICATED NEW REPAIR PARTS AND INSTALLED IAW B737-800 SRM 53-70-51-2R-2.REINSTALLED SUB STRUCTURE IAW B737-800 SRM 51-40-02.

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