What Am I?
There are 5 of these in the rotor drive transmission system
What is a Quantitative Debris Monitor(QDM)
A small wedge sometimes bonded to the trailing edge
What is used to aerodynamically balance the rotor blade against a master blade?
Flashing RTR BRK ON indication
What shows that the rotor brake is going through an engage to disengage cycle
This switch is located on the ancillary switch panel on the interseat console
Where is the ACSR ON/OFF switch located?
This sensor is located in the tail rotor drive on the intermediate gearbox
What is the azimuth sensor?
It reduces hydraulic pressure supply to the rotor brake from 210 bar to 132 bar.
What is the hydraulic manifold
Views and processes data passed from the Data Acquisition Unit (DAU)
What is the purpose of the Control and Display Unit (CADU)?
MGB OIL HOT caption on CWP
What caption indicates hot oil in both MGB lubrication systems?
4 full turns of the sleeve, damage can result if forced beyond this limit
How many turns is the total adjustment range of the pitch link?
The tail rotor hub is machined from this material and surrounded by a carbon epoxy winding
What is titanium?
This component within the rotors group requires regular greasing
Duplex bearings within the swashplate
Changes the angle of drive and reduces speed in the transmission system
NR NOT VALID on the AMS - XMNS TEST - TVM page of the CCU
What will be displayed while the TVM is paused?
It gathers MRB track and lead lag data
What does the UTD do?
I am located in the tail drive shaft supports
Where are the elastomeric dampers located in the tail rotor drive
Some are permanently installed on the main rotor blades, spanwise and chordwise and not adjustable at unit level
What are balance weights?
Measures torque in the transmission system
What is the SSPU?
The ACSR FAIL caution is illuminated and there is an Avionic Log entry indicating excessive vibration
What happens when the ASCR system is survivable, but the controller has switched the ASCR system OFF due to excessive airframe vibration?
The length of the pitch change rod need to be decreased
How do you increase the pitch angle of the main rotor blade track?
Because it's a splash lubricated gearbox
Why doesn't the tail gearbox oil pressure display on the SPSD?
#3 engine has an actuated one of these to eliminate wear and drag when the engine is shut down
What is a freewheel?
Conditions NR>NF by 5% or NR=NF=0 must be satisfied first
What allows the actuated freewheel to motor?
A MRH damper red band visible at the right hand of the reservoir viewing window
What indicates the MRH damper needs servicing?
5R
Fully articulated
The tail rotor is....?