Cannot Advance Throttle to Idle...

[Captain Orso]

With the throttle on cutoff, you cannot advance the throttle to idle without releasing the throttle cutoff lever first, which is in contradiction to 'NATOPS Flight Manual Navy Model AV-8B/TAV-8B 161573 And Up Aircraft ( 15 March 2008 )', Page 2-15, section 2.4.1:

 

2.4.1 Throttle

 

The throttle is located on the left console (Figure 2-6). The throttle is mechanically linked to the PLA and the combined manual fuel valve and fuel shutoff cock within the FMU. When in DECS control the PLA sends an electronic signal to the DECUs based on the position of the throttle.When the throttle is fully aft, the high pressure fuel shutoff valve is closed and cuts off fuel supply to the engine. Forward movement to the idle rpm position opens the shutoff valve and a ratchet stop prevents movement back except when a spring loaded throttle cutoff lever, on the front of the throttle, is lifted. Inside the quadrant is a spring loaded full throttle stop. If the throttle is pushed hard against this and compresses it, the jet pipe temperature limiter (JPTL) switch is switched OFF; it must subsequently be switched ON by hand. The full throttle stop can be overridden if necessary by a push force on the throttle of 30 to 35 pounds. An interference catch ensures that the throttle lever cannot be moved past a parking BRAKE LOCK position when the lock is engaged. A throttle damper friction control is aft of the throttle quadrant.

[Captain Orso]

I take this back. I was wrong. You CAN advance the Throttle to idle without doing anything else, and once at idle, if the Parking Brake is on, the in-cockpit Throttle is locked at idle by the Parking Brake Lever and the Throttle Cutoff ratchet.