AW 139 Rotor

Question 1

What is the continuous Nr overspeed limit in the power-off condition?

Answer 1

Above 110%

Question 2

What sensors can be found on the Tail Rotor Gearbox?

Answer 2

Temperature sensor
Chip detector
oil low Level sensor

Question 3

The tail rotor blade is mainly manufactured with:

Answer 3

Glass fiber

Question 4

The tail rotor damper:

Answer 4

is serviced on-condition

Question 5

Main rotor blades tie-down are secured to:

Answer 5

MLG only

Question 6

When main rotor blades tie-downs are required, one blade must be positioned:

Answer 6

Perpendicular to the longitudinal axis

Question 7

When parking the helicopter:

Answer 7

Park brake must be ON, rotor brake must be ON

Question 8

Main rotor blades are mainly manufactured with:

Answer 8

c. Glass fiber and Kevlar fiber

Question 9

Dynamic balancing weights are located:

Answer 9

In the main blade installation bolts

Question 10

The main rotor hub is made of:

Answer 10

Titanium with a graphite fiber reinforcement

Question 11

The main rotor damper can operate at low speed thanks to the oil displacement between each chamber due to:

Answer 11

Internal leaks and orifices

Question 12

The oil quantity in the main rotor damper is checked:

Answer 12

By sight only

Question 13

The main rotor swashplate spherical bearing rotation is prevented by:

Answer 13

The main rotor servoactuators

Question 14

The tail rotor drive shaft are made of:

Answer 14

1-Steel / 2-Aluminium / 3-Aluminium

Question 15

The bearings supporting the tail rotor drive shafts are total of:

Answer 15

One

Question 16

The tail rotor hub is manufactured from.

Answer 16

Titanium

Question 17

The spider and the slider assembly in the tail rotor rotating controls:

Answer 17

Rotates and slides inside the slider bushing

Question 18

The tail rotor dynamic balancing weights are located:

Answer 18

In the tail blade installation bolt

Question 19

The tail stabilizer is:

Answer 19

Fixed to the structure

Question 20

The rotor speed probe is formed by three independent coils:

Answer 20

The first for EEC #2, the second for the MAU’s, the third for EEC #1

Question 21

The main rotor speed indication is represented:

Answer 21

On the triple tachometer displayed on the PFD (default page) and on the MFD (main page)

Question 22

The caution NR MISCOMPARE is displayed on the CAS when:

Answer 22

A discrepancy of 3% between the EECs data and the corresponding back up analog data exist

Question 23

The caution ENG ANALOG FAILURE is displayed on the CAS when

Answer 23

A discrepancy of 3% between the EECs data and the corresponding back up analog data exist the

Question 24

When the ROTOR BRAKE lever is set to PUMPING LIMIT from OFF position, the pressure reported on the RB pressure indicator:

Answer 24

a. Is 46 BAR

Question 25

When the A/C is landed

Answer 25

b. The caliper moves automatically up when the logic WOW and both engine off is detected

Question 26

With the ROTOR BRAKE lever set to OFF position after an operation, the caliper is:

Answer 26

Still up and moves down when the first engine is started

Question 27

The ROTOR BRAKE pressure indicator has a green led

Answer 27

That is lit when the caliper is down

Question 28

The warning message is continuously repeated until the condition is corrected or the reset input provided is:

Answer 28

ROTOR LOW

Question 29

The Nr operative range in power off condition is:

Answer 29

95 - 110%

Question 30

The Nr overspeed in power off condition is above:

Answer 30

110%

Question 31

On the triple tachometer scale, the red band will be filled in based

Answer 31

On the value of the NR/NF indications

Question 32

Which Aural Warning Message is continuously repeated until the condition is corrected?

Answer 32

ROTOR LOW