May 23 (Reuters) - Boeing CFO Brian West said

Thursday that commercial jet deliveries won't step up in the

second quarter compared with the first three months of the year

as the company reckons with production quality issues.

West also told the Wolfe Research Global Transportation and

Industrials Conference the planemaker's jet deliveries to China

were delayed in recent weeks due to a Chinese regulatory review

of batteries powering the cockpit voice recorder, confirming an

earlier Reuters report.

The company's jet production has slowed dramatically in the

face of increased scrutiny from regulators, airlines and

lawmakers following a January incident when a door plug blew off

an Alaska Airlines jetliner while in mid-air.