# SDR CALA2026042415687

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2026
- Submitted: April 24, 2026
- Operation: Air carrier
- Aircraft: [N15710](https://openairdocs.org/aircraft/N15710), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28780
- Aircraft time: 83,332 hours, 31,199 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Vapor Barrier
- Part number: 111A11413
- Condition: Cracked
- Location: Zone 100
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026042415687

## Discrepancy

FOUND CRACK  AT WING CTR SECTION REAR SPAR L/H VAPOR BARRIER @ LBL 5  STA 663.75 I/B OF RAM AIR EXIT DUCT .  INSTALLED REPAIR PATCH WHERE CRACK WAS FOUND AT WING CTR SECTION REAR SPAR L/H VAPOR BARRIER @ LBL 5 STA 663. AS PER SRM-57-10-10-2R-2 PARAGRAPH 6 FIGURE 202 TABLE 215.

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