# SDR SWAA2026033076808

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2026
- Submitted: March 30, 2026
- Operation: Air carrier
- Aircraft: [N486WN](https://openairdocs.org/aircraft/N486WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33852
- Aircraft time: 70,495 hours, 42,368 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Pressure Blkhd
- 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/SWAA2026033076808

## Discrepancy

AFT PRESSURE BULKHEAD HAD A CRACK INDICATION, EMANATING FROM RIVET AT STRINGER 7R LOWER GROUP OF FIVE, CLOSEST TO APEX.  APPROX. 1/8' LONG.  REJECTED STEP 43 FOR EDGE MARGIN IS OUT OF LIMITS OF -1 FILLER AND -2 FILLER.  REFABRICATED -1 AND -2 REPAIR PARTS TO MEET EDGE MARGIN REQUIREMENTS FROM STEP 43; ADDRESSED ON STEPS 45; 46; 47; 48 I.A.W. SWA EA 26-153-00643-WIP5.;[03] VERIFIED REJECT FOR STEP 43 HAS BEEN CORRECTED REFABRICATED -1 AND -2 FILLERS LOCATED AND DRILLED WITH THE CORRECT EDGE DISTANCE IAW EA 26-153-00643-WIP 6;

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