The team en route to the suspected crash site aim finally to solve the mystery of her 1937 disappearance.
The United Arab Emirates' attorney-general also alleges the co-pilot was trying to crash the plane into Tel Aviv's airport.
The man - who was piloting the aircraft - died on the scene, say emergency services.
The aircraft lost communication with flight controllers after significantly dropping in altitude, according to flight data.
Sqn Ldr Mark Long was killed when the plane he was flying crashed in a field in May 2024.
State police and the country's security agency are looking into the co-pilot, who attempted to take control of a Flydubai plane travelling to Israel.
Investigators say Peter Beeson's poor mental health make it "likely" he crashed on purpose.
Capt Smit Machchhar was attacked by another pilot onboard the Flydubai flight bound for Tel Aviv.
