MADRID, Oct 8 (Reuters) - Major Boeing customer

Ryanair on Wednesday said the U.S. aircraft manufacturer

expects to boost its monthly production rate for its 737 model

to 48 by March or April next year.

Boeing has applied to the U.S. Federal Aviation

Administration to boost production to 42 737s per month by

October and expects to hit 48 by March or April, Ryanair Group

Chief Executive Michael O'Leary told journalists in Madrid.