# SDR SWAA2023081460413

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 18, 2023
- Submitted: August 14, 2023
- Operation: Air carrier
- Aircraft: [N444WN](https://openairdocs.org/aircraft/N444WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29839
- Aircraft time: 66,457 hours, 39,411 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Support
- Part number: UNKNOWN
- Condition: Cracked
- 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/SWAA2023081460413

## Discrepancy

MAIN CABI CENTER WING BOX FLOOR SUPPORT INNER CHORD CRACKED AT STA 520 LBL 64 WL 208.1<[01] VERIFIED / INSPECTED REPAIR ACCOMPLISHED AT CABIN FLOOR STRUCTURE STA 520 LBL 64 WL 208.1. FABRICATED PARTS REPAIR DOUBLERS. INSTALLED. REF. FABRICATED INNER CHORD CREASE BEAM SECTION FROM AL 7050-T7451 PLATE PO# 2028332 PER B737-700 SRM 51-70-12-2R-2 TABLE 202 AND 51-20-01-0G-0. INSTALLED REPAIR PARTS PER B737-700 SRM 51-70-12-2R-2.;[02] REPAIRED MAIN CABI CENTER WING BOX FLOOR SUPPORT INNER CHORD AT STA 520 LBL 64 WL 208.1 AS PER SRM 51-70-12-2R-2.;[03] RII -- VERIFIED REPAIR OF MAIN CABIN CENTER WING BOX FLOOR SUPPORT INNER CHORD AT STA 520 LBL 64 WL 208.1.

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