# SDR DALA2026020900940

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2025
- Submitted: February 9, 2026
- Operation: Air carrier
- Aircraft: [N129DU](https://openairdocs.org/aircraft/N129DU), registered now
- Make and model: Airbus BD-500-1A10
- Registry model: [Airbus BD-500-1A10](https://openairdocs.org/model/airbus-canada-ltd-ptnrsp-bd-500-1a10) (OpenAirDocs)
- Aircraft serial: 50048
- Aircraft time: 15,131 hours, 6,999 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Door Sill
- Condition: Corroded
- 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/DALA2026020900940

## Discrepancy

AMOC / MONITOR INSPECTION LOG REF 630257-14AD,  FWD FUSELAGE,  FWD CARGO DOOR SURROUND STRUCTURE SILL BTWN FR 25 - 28.   SUBJECT REPAIR REQUIRES ADDITIONAL ENGINEERING APPROVAL. REPAIR APPROVAL IS LIMITED TO 40,600 TOTAL FLT HRS OR 20,300 TOTAL ACFT FLT CYCLES FROM TIME OF MANUFACTURE, WHICHEVER OCCURS FIRST. ADDITIONAL ENGINEERING AUTHORIZATION (ER /A REVISION) IS REQUIRED FOR CONTINUED SERVICE BEYOND THIS LIMIT . ASSOCIATED ER/A 14-630257 ADDED FOR AC 8129. (LP# 1365896)

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