Avionics
Cockpit and cabin avionics
Word that operators of nearly 600 U.S.-registered business jets failed to comply with an FAA mandate calling for installation of emergency locator transmit

Word that operators of nearly 600 U.S.-registered business jets failed to comply with an FAA mandate calling for installation of emergency locator transmitters (ELT) by January 1 this year could not have sat well with FAA officials in Washington.

Handed down by Congress more than three years ago, the order was developed in response to the Christmas Eve 1996 crash of a Learjet 35A in southern New Hampshire, the wreckage from which remained missing for more than three years despite a search-and-rescue effort that turned out to be the biggest in state history.