investigating TAIL WHL UNLOCK SEL EUFD Message extinguishes during ground taxi

[Talonfox]

ISSUE: TAIL WHL UNLOCK SEL advisory message on the EUFD flickers between 19 & 21% torque (TQ) and is fully extinguished by 22%. 

DISCUSSION: One source states that when the message is presented the tail wheel unlock position has been selected. (This advisory is only presented when the aircraft is on the ground. In reality, the AH-64D generally ground taxis between 25-30% TQ and as the aircraft gets light around 40-50% the weight-on-wheels switch on the left main landing gear prompts the message to extinguish. Note: the UNLOCK pushbutton illuminates correctly.

RECOMMENDATION: Adjust the software to turn off the advisory message at 45% instead of 20%.

TAIL WHL UNLOCK SEL EUFD Message extinguishes during ground taxi.trk

[Raptor9]

I think the landing strut sensitivity for the squat switch just needs adjusted, to account for variances in gross weight.  The squat switch is just disengaging without enough strut extension.  This is also causing the pylons to go to FLT STOW while taxiing. But agree, not quite accurate.