** J.P.Morgan cuts aircraft parts maker TransDigm's TDG.N PT to $1405 from $1500, representing 9.3% upside on stock's last close
** TransDigm shares fall nearly 1% to about $1278.5 in early trading
** "TDG has a model for generating equity returns by focusing on the aftermarket, pricing its products aggressively, undertaking accretive acquisitions, and employing financial leverage," brokerage says
** Says co's underperformance since its last earnings report is notable, and brokerage has been relatively cautious on stock
** 18 of 22 brokerages rate stock "buy" or higher and four "hold"; their median PT is $1550 - data compiled by LSEG
** Including session moves, shares up about 9% YTD
(Reporting by Parth Chandna)
((Parth.Chandna@thomsonreuters.com;))