Kolkata, Feb 28 (IANS) Fire indication observed by the pilot during boarding delayed a Doha-bound Qatar Airways flight by nearly five hours on Thursday in Kolkata's Netaji Subhas Chandra Bose International Airport.

The flight QR-541 was originally scheduled to take off at 3.15 a.m.

Officials from the Airport Authority of India said while boarding of Qatar Airways flight QR-541 was in progress, the pilot observed fire indication in the auxillary power unit. A full emergency was declared by Air Traffic Control at 3 a.m. which was withdrawn an hour later.

After the aircraft was checked and cleared, the flight finally departed at 8.11 a.m.

--IANS bnd/ssp/pg/ab