CHENNAI , India, Aug. 2 (UPI) -- The search for an Indian air force plane, missing over the Bay of Bengal with 29 people aboard, has been hampered by the plane's lack of an underwater locator.
The Russian-made AN-32 plane was not equipped with an underwater locator beacon, or ULB, a basic safety device. Emergency locator transmitters were installed during its September 2015 upgrade, but the ELTs are of little use underwater, officials said.