# SDR SWAA2021072122774

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2020
- Submitted: July 21, 2021
- Operation: Air carrier
- Aircraft: [N8653A](https://openairdocs.org/aircraft/N8653A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 37037
- Aircraft time: 20,453 hours, 8,984 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 500i R-Lbl24
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021072122774

## Discrepancy

FWD PIT LATERAL FLOOR SUPPORT UPPER SURFACE CORRODED STA 500I FROM LBL24' TO RBL24' AND W/L157 / REMOVED CORROSION ON FWD PIT LATERAL FLOOR SUPPORT (RAIL) STA 500I STA 500I RBL 24' TO LBL 24'. ORIGINAL 'T' .090. REMOVED .015' IN AREA 1' X 2' IAW B737 SRM 51-10-02-0G-0. NO PUBLISHED LIMITS FOR ANGLE. REMOVED AND REPLACED FLOOR SUPPORT RAIL IAW B737 SRM 51-40-02-0G-0 AND DWG 143A9481 REV. - P/N 143A9485-35 TAG # AD8820

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