# SDR SWAA2023101294890

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2023
- Submitted: October 12, 2023
- Operation: Air carrier
- Aircraft: [N8311Q](https://openairdocs.org/aircraft/N8311Q), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 38808
- Aircraft time: 37,275 hours, 17,282 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 200 Fus Top
- 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/SWAA2023101294890

## Discrepancy

CRACK ANGLE FLOOR STRUCTURE BS 540 BTW LB 0 TO RBL 24.75 AT PASSENGER CABIN 2023-549783 (BL 0 TO RBL 24.75)<[01] REPLACED ANGLE FLOOR STRUCTURE BS 540 BTW LB 0 TO RBL 24.75 AT PASSENGER CABIN IAW B737-800 SRM 51-10-02 PARAGRAPH 9; SRM 51-40-02 AND DWG:143A5240 SHEET 14 REV -. ?SEE INDIVIDUALS SING-OFF BELOW?.;[02] STEP 1 CORRECTED <BR>REPLACED ANGLE FLOOR STRUCTURE BS 540 BTW BL 0 TO RBL 24.75 AT PASSENGER CABIN IAW B737-800 SRM 51-10-02 PARAGRAPH 9; SRM 51-40-02 AND DWG:143A0060 REV -. ?SEE INDIVIDUALS SING-OFF BELOW?.;[03] CORRECTED STEP 2. REPLACED ANGLE FLOOR STRUCTURE BS 540 BTW BL 0 TO RBL 24.75 AT PASSENGER CABIN IAW B737-800 SRM 51-10-02 PARAGRAPH 9; SRM 51-40-02 AND DWG:143A0060 REV -. SEE INDIVIDUALS SIGN-OFF BELOW;[04] REPLACED ANGLE FLOOR STRUCTURE BS 540 BTW BL 0 RBL 24.75 AT PASSENGER CABIN IAW B373-800 SRM 51-10-02 PARAGRAPH 9; SRM 51-40-02 DWG: 143A0060 REV:- RII VERIFIED

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