Federal Communications Commission Chairman Kevin Martin is putting pressure on senior agency staff to complete their review of the $17.6 billion carve-up of Adelphia Communications Corp. by Comcast Corp. and Time Warner Inc.

Martin hopes to receive a draft of an order clearing the transaction, with some conditions, before the end of May, according to sources close to the agency. If Martin signs off, that order would then be distributed to the four other FCC commissioners. Martin expects his colleagues would then approve the deal a few weeks later.