# SDR AALA202604274698

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2026
- Submitted: April 27, 2026
- Operation: Air carrier
- Aircraft: [N920AN](https://openairdocs.org/aircraft/N920AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29521
- Aircraft time: 65,799 hours, 27,234 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Vapor Barrier
- Condition: Damaged
- 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/AALA202604274698

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: WEAR TO WING CENTER SECTION REAR SPAR VAPOR BARRIER EXISTING REPAIR IN LEFT HAND WHEEL WELL AT STA 663.75 BETWEEN LBL 31.83 AND LBL 45.64. REPAIRED VAPOR BARRIER PER SRM 57-10-10-2R-2

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