It means a trace back to airline.
121 - Airline that flies only within the USA 129 - Foreign Airline that flies into the USA
Aircraft parts come from a variety of places. These codes are used to identified the parts origin. 145 trace indicates it came from a domestic repair station and there is paperwork to support it. 129 is a foreign carrier or operator of U.S. A/C.
No. It is not practicle to make it float as well. What if the black box float to other part of the ocean, it will be very difficult for the team to find out the actual location of the crashed aircraft. Black box's ULB (Underwater Locater Beacon) will emit ultrasound to trace its location.
Shane Trace goes by Trace.
Trace
The plural of aircraft is aircraft.One aircraft, two aircraft, ten aircraft.
Trace, Tracy = Brave
this utterly gorgeous mans name is trace adkins.
Place the trace paper on top of the pattern you are trying to trace so the pattern shows through the trace paper. Then secure the paper to make sure it does not move with some tape and then trace with a pencil or pen.
No Trace was created in 1950.
Trace can copy all abilities except for Trace and Multitype.