Takeoff checks

[Lawndart]

I've posted this elsewhere, but without anyone able to give me a definitive answer.

I grabbed some comms from the Tbird air show at MacDill recently, and I'm trying to make out what Deuce says during the takeoff checks?

Listen here (http://www.virtualthunderbirds.com/misc/Takeoff%20Litany.wma) and help me fill in the blanks!

After boss says: "Go ahead with the litany", two replies:
G-suit
?
Alt flaps
Trim
Tapes
Cat 1
Landing light
Seat
Fuel
Transmitters
Followed by three acknowledging: "Got it Deuce".

What is #2 on the list?

Anyone with block 52 or Tbird inside info?



P.S. If anyone wants the complete MacDill recording from the performance, grab it here (http://www.virtualthunderbirds.com/Library/2009_Tbirds_MacDill_AFB.zip).

[himti]

My guess......

EPU Off

[Bogusheadbox]

Hard to make out. Sounds to me like he is saying "TPR".

No idea what he is referring to though

[Lawndart]

DB(U) - Digital Backup??

[Haole]

DBU Off