	twa twa declines comment on usair u a transworld airlines inc official said the airline has no comment on usair group inc s planned buyout of piedmont aviation inc twa however has pursued its application with the department of transportation for a takeover of usair according to mark buckstein twa general counsel and vice president twa filed a revised application today following the dot s rejection friday of an incomplete application filed last week earlier usair said it agreed to buy piedmont for dlrs cash per share 
