# SDR SWAA2022092842860

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2022
- Submitted: September 28, 2022
- Operation: Air carrier
- Aircraft: [N431WN](https://openairdocs.org/aircraft/N431WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29845
- Aircraft time: 66,939 hours, 39,408 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead Web
- Condition: Cracked
- Location: Bs 663
- 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/SWAA2022092842860

## Discrepancy

CRACK FOUND AT MAIN CABIN HORIZONTAL PRESSURE WEB STA 663 + 2'; APPROX LBL 34. CRACK LENGTH 0.531'. CRACK FOUND AT MAIN CABIN HORIZONTAL PRESSURE WEB STA 663 + 2' APPROX LBL 34. CRACK LENGTH 0.531'. / [01] REMOVED FASTENERS AT PRESSURE DECK WEB BETWEEN STA 663.75 AND STA 675 FROM LBL 30 TO LBL 60 REF B737-700 SRM 51-40-02-0G-0.[09] STARTED TO FABRICATED REPAIR PARTS FOR MAIN CABIN L/H HORIZONTAL PRESSURE DECK WEB BETWEEN STA 663.75 AND STA 675 REF B737-700 SRM 53-40-51-2R-2 FIG 203 TABLE 202.;[10] COMPLETED FABRICATION REPAIR PARTS FOR MAIN CABIN L/H HORIZONTAL PRESSURE DECK WEB BETWEEN STA 663.75 AND STA 675 FROM LBL 30 TO LBL 60 MATERIAL USED 2024-T3 0.020' PO# 1645137; 2024-T3 0.063' PO# 177121; 2024-T3 0.080' PO# 1758946; 2024-T3 0.090' PO# 1727238 AND EXTRUSION BAC1505-100052T6511 PO# 1745253 REF B737-700 SRM 53-40-51-2R-2 FIG 203 TABLE 202.;

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