The Sultanate of Oman placed an order
for eight ADVs on 14th August 1985 for delivery in 1987. This was subsequently pushed
back to 1988 and then until 1992 prior to it being cancelled.
The eight airframes ZH552, ZH553, ZH554,
ZH555, ZH556, ZH557, ZH558 & ZH559 were subsequently delivered to the RAF