BANDAR SERI BEGAWAN, Nov 13 (Reuters) - Vietnam Airlines

will issue a request for proposal to aircraft

manufacturers next year to purchase 50 narrowbody jets, its CEO

said on Wednesday.

The carrier last year signed a provisional deal with Boeing ( BA )

for 50 737 MAX planes that has yet to be finalised.

"In Vietnam we have to go through the bidding process, we

have to open to others... the door is still open for everyone,"

Vietnam Airlines CEO Le Hong Ha told Reuters on the sidelines of

an Association of Asia-Pacific Airlines event in Brunei. "Boeing ( BA )

is one option, they have a very good offer for us."

Airbus and Boeing ( BA ) are the main global manufacturers

of single-aisle aircraft, with Airbus' A320neo family competing

against the 737 MAX. Vietnam Airlines' current narrowbody fleet

consists of only Airbus planes, according to its website.

The airline needs 170 new aircraft by 2035, its CEO said.