Yes nothing is absolutely garunteed however L3CTS say,
"Training Security Bond solution
Airline Placement Limited (APL), a wholly owned subsidiary company of L3 CTS, will provide a Training Sponsorship for the Basic and Intermediate phases (excluding the initial Foundation Element of the Basic phase).
Training Sponsorship represents a significant investment, and to mitigate the risk to APL (the sponsor), you will be required to deposit a Training Security Bond of £69,000 which will be held by APL.
We provide a unique opportunity for your Training Security Bond to be repaid to you over a period of 7 to 9 years once fully employed by an Airline Partner.
Please note: This is not payment for training."