AD/DHA-3/15 - Rear Fuselage - Elevator Quadrant Installation - Modification

What this does: This is an Airworthiness Directive—a mandatory safety order requiring owners to modify the elevator control system in the rear fuselage of DHA-3 Drover aircraft.

Who it affects: Owners and operators of all models of the DHA-3 (Drover) series, a twin-engine utility aircraft manufactured by de Havilland Australia.

What must be done: The elevator quadrant (a mechanical component in the tail that controls the aircraft's pitch) must be modified immediately ("forthwith") according to one of two technical documents:

de Havilland Technical News Sheet CT(A3) No. 100; or
de Havilland Modification DRO 88

Why it matters: The directive addresses a specific airworthiness issue with the elevator installation. Compliance is mandatory for the aircraft to remain legally airworthy and safe to operate.

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source DHA-3 (Drover) Series Aeroplanes

AD/DHA-3/15 Rear Fuselage - Elevator Quadrant

Installation - Modification

9/55

Applicability: All models.

Document: 1. DH TNS CT(A3) No. 100; or

DH Modification DRO 88. Compliance: Forthwith.