July 22 (Reuters) - Air India has completed

precautionary inspections on the locking mechanism of the fuel

control switch on all its Boeing 787 and Boeing 737 aircraft,

with no issues found, the airline said on Tuesday.

Air India operates a fleet of Boeing 787 twin-aisle jets on

its long-haul operations, while low-cost unit Air India Express

operates the Boeing 737 single-aisle jets.

The probe into the Air India flight that crashed and killed

241 of the 242 people on board and 19 on the ground, is centred

around the fuel control switches on the Boeing 787 jetliner.

A final report into the incident is expected within a year

of the accident.

The switches regulate fuel flow into a plane's engines. They

are used by pilots to start or shut down engines on the ground

or to manually shut down or restart engines if an engine failure

occurs during a flight.