The cockpit instruments were old ... Mexican aviation regulator DGAC did not seek background information on the Learjet 25 co-pilot, saying he was inexperienced and lacked the U.S. certification ...

Investigators have located the Learjet’s two engines, and retrieved the cockpit-voice recorder, disclosing that it was found at the point of impact at a depth of 8ft (2.4m). Search personnel ...

Butler National previously an obtained STC approval for ADS-B Out compliant solutions in the Learjet Model 24, 25, 35 ... ADS-B In provides pilot cockpit advisory services that consist of the ...

which might provide clues as to what was happening in the cockpit during the crash. The Learjet did have such a recorder, though it was an older, tape-based model. (Newer ones are solid-state ...

Cockpit voice recorder of the Learjet 55 that crashed on January 31 in Philadelphia. [Credit: National Transportation Safety Board] NTSB said it also recovered the aircraft’s enhanced ground ...

A cockpit voice recorder was not functioning ... And while the doomed Learjet 55 was in contact with an air traffic control tower, "there were no distress calls received from the flight crew ...

It's unclear whether the medical jet was required to have a functioning cockpit voice recorder. In the U.S., it depends on the size and type of plane. However, the Learjet 55 that crashed in ...

The cockpit voice recorder wasn’t working on ... All six people on the Learjet 55 were killed — including 11-year-old Valentina Guzman Murillo — while one person was killed on the ground ...

The cockpit voice recorder (CVR) of the Learjet 55 that crashed on January 3 in Philadelphia has been discovered by ...