# SDR SWAA2023061651047

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2023
- Submitted: June 16, 2023
- Operation: Air carrier
- Aircraft: [N8535S](https://openairdocs.org/aircraft/N8535S), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 63596
- Aircraft time: 19,603 hours, 9,695 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: UNKNOWN
- Condition: Corroded
- Location: Zn 100 Fus Lower
- 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/SWAA2023061651047

## Discrepancy

CORROSION ON 947 FLOORBEAM AT RBL 49-50; RBL 24; WL 208.<[01] EVALUATED CORROSION ON BS947 FLOORBEAM AT RBL 49-50 2'X1'ORIGINAL MATERIAL THICKNESS .180 REMAINING MATERIAL THICKNESS .090; RBL 24 1.5'X1.5' REMAINING MATERIAL THICKNESS .120; WL 208 ALL I.A.W SRM 53-70-51-1A-1 ALLOWABLE DAMAGE 1 PAR 4.H(2)(B) FIGURE104/ALLOWABLE DAMAGE 1 DETAIL C.E CORROSION FOUND TO BE OUT LIMITS DISCREPANCY TO BE REPAIRED ON COSTUMER CARD TTG8Q00L6RSM.;[02] COMPLETED TASK;[03] TOOL USED ON CORRECTIVE ACTION 1<BR>TOOLS USED ON CORRECTIVE ACTION 2<BR>ATS1225<BR>S/N UNKNOWN<BR>DUE 08/2023<BR>ATS2738<BR>S/N A22004095<BR>DUE 04/2024;[04] VERIFIED CORRECTION ACTION ITEMS 1;2 AND 3 AND MEASUREMENT TABLE.

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