EASA AD CF-2025-30: Doors — Passenger Door Separation

What to do

Operators of affected DA40 models must incorporate the specified Aircraft Flight Manual Temporary Revision within 100 flight hours or 100 days after July 7, 2025. They must also perform inspections and modifications of the door latching and safety hook mechanisms within the same timeframe, following the detailed work instructions in the referenced Service Bulletin. Any discrepancies found during inspections require contacting Diamond Aircraft Industries for corrective instructions before further flight.

Summary

The Canadian Airworthiness Directive CF-2025-30 addresses passenger door separation issues on Diamond Aircraft Industries Inc models DA40 NG, DA40, DA40 F, and DA40 D. This directive mandates amendments to the Aircraft Flight Manual and requires inspections and modifications of the passenger door latching and safety hook mechanisms. The directive aims to mitigate risks of door separation that could lead to structural damage, loss of control, or injuries.

What changed

CF-2025-30 introduces new interim corrective actions including incorporation of a Temporary Revision to the Aircraft Flight Manual and mandatory inspections and modifications as detailed in Diamond Aircraft's Service Bulletin MSB 40-103 series. It also requires installation of placards in the cabin and ongoing inspections to support investigation into the root cause of door separation. Further AD actions may follow as this is an interim measure.

Why it matters

This directive is critical for operators and maintenance organizations to prevent passenger door separation incidents that could compromise aircraft safety and control. Compliance ensures continued airworthiness and reduces risk of injury to occupants and people on the ground. It also provides a clear framework for inspections and corrective actions, aiding regulatory compliance and operational safety.