# SDR SWAA000029224

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 12, 2021
- Submitted: April 27, 2022
- Operation: Air carrier
- Aircraft: N777QC
- Make and model: Boeing 737
- Aircraft serial: 30592
- Aircraft time: 68,673 hours, 40,726 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: None
- Condition: Cracked
- Location: Center Wing
- 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/SWAA000029224

## Discrepancy

SUPPLEMENTAL INFORMATION: MAIN CABIN CENTER WING FLOOR SUPPORT BREAK CRACKED @ LBL-1 STA 540 MKD DOT ; / [01] REMOVED MAIN CABIN CENTER WING FLOOR SUPPORT BRACKET LBL-1 STA 540. IAW B 737-7 SRM 51-40-02.; [02] LOCATED AND DRILLED NEW FLOOR SUPPORT . IAW B 737-7 SRM 51-40-05.; [03] VERIFIED STEPS 1 AND 2.; [04] OK TO INSTALL BREAK ASSY; [05] REMOVED AND INSTALLED NEW BREAK ASSY AT MAIN CABIN CENTER WING LBL-1 STA 540 REF B 737-7 SRM 51-40-02 AND DWG #134A5240; [06] VERIFIED STEP 5; [07] VERIFIED STEP 5

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