# SDR SWAA2026081857572

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2026
- Submitted: August 19, 2026
- Operation: Air carrier
- Aircraft: [N246LV](https://openairdocs.org/aircraft/N246LV), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32507
- Aircraft time: 65,589 hours, 39,742 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Vapor Barrier
- Condition: Cracked
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026081857572

## Discrepancy

CRACK FOUND IN BS 639 L/H STUB BEAM STRAPS AFT FASTENER HOLE DURING NDI INSPECTION, ENGINEERING REQUIRED CRACK FOUND IN BS 639 L/H STUB BEAM STRAPS AFT FASTENER HOLE DURING NDI INSPECTION ENGINEERING REQUIRED L/H VAPOR BARRIER C/W STA.578-STA.616 VERIFIED STEP 2 C/W.  OK TO INSTALL GIVEN FOR STA.639 STUB BEAM AND L/H STA.639 STUB BEAM STRAP. REJECT: STA 639 STUB BEAM O/B (ON OUTSIDE OF SKIN) 2EA FASTENERS HAVE INSUFFICENT THREAD PROTRUSION. VERIFIED STEPS 145 & 6 COMPLETE. VERIFIED ALL RII REQUIREMENTS HAVE BEEN MET. VERIFIED ALL RII REQUIREMENTS HAVE BEEN MET.

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