May 6 (Reuters) - Aerospace supplier TransDigm Group ( TDG )

topped second-quarter profit expectations on Tuesday and

maintained its full-year earnings forecast, betting on strong

demand for aftermarket parts and services from planemakers and

carriers.

Delayed delivery of new planes has pushed airlines to extend

the use of older aircraft to cater to booming demand for air

travel, which has boosted orders for profitable aftermarket

parts at suppliers.

TransDigm ( TDG ) said it does not anticipate a "material headwind"

from U.S. President Donald Trump's sweeping tariffs and

reaffirmed its annual profit forecast of $32.27 to $34.19 per

share.

The company supplies aircraft components such as cockpit

security systems and engine sensors for commercial and military

jets, and counts planemakers Boeing ( BA ) and Airbus

among its customers.

Separately, TransDigm ( TDG ) said on Tuesday that co-Chief

Operating Officer Mike Lisman would succeed Kevin Stein as CEO.

The Cleveland, Ohio-based firm posted an adjusted profit of

$9.11 per share for the second quarter, while analysts had

expected $8.95 per share, according to data compiled by LSEG.

Net sales for the quarter through March 29, jumped 12% to

$2.15 billion, below analysts' average expectation of $2.17

billion.

(Reporting by Anandita Mehrotra and Anshuman Tripathy in

Bengaluru; Editing by Shinjini Ganguli)