# SDR AALA202512091977

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2025
- Submitted: December 9, 2025
- Operation: Air carrier
- Aircraft: [N731AN](https://openairdocs.org/aircraft/N731AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 33523
- Aircraft time: 44,342 hours, 5,149 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin Panel
- Part number: 187W3002303
- Condition: Delaminated
- Location: Zone 300
- 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/AALA202512091977

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: LEFT HAND HORIZONTAL STABILIZER UPPER SKIN PANEL DELAMINATED BETWEEN FRONT SPAR STA 177.9 AND 228.526. REPAIRED PANEL PER SRM 51-70-00.

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