Hydraulics

Question 1

Desired airspeed following any hydraulic system failure

Answer 1

75-100 kias

Question 2

Tail Rotor Note

Answer 2

Note: with the 10-bladed tail rotor hub installed, the loss of a single hydraulic system (either by actual failure or by placing the TAIL HYD ISOLATE switch in CUTOFF) will result in considerable feedback in the pedals. Any isolate condition, including a #2 DC bus short, movement of the EECO to CUTOFF, or pulling the SEC HYD CB will also induce this condition

Question 3

1) PRI SERVO P warning light illuminated
2) SERVO JAM warning light illuminated
3) Limit lights illuminated
4) HYD2 PRESS

Answer 3

Primary Hydraulic System Failure (pg 67-68)

1) Cruise airspeed - 75-100 kias
2) Avoid abrupt maneuvers
3) Land as soon as practicablef

Question 4

1) SEC SERVO P warning light illuminated
2) SEC HYD LO PRESS warning light illuminated
3) SERVO JAM warning light illuminated
4) HYD1 PRESS

Answer 4

Secondary Hydraulic System Failure (pg 68-71)

1) Cruise airspeed - 75 to 100 kias
2) Avoid abrupt maneuvers
3) non-memory…

Question 5

1) SEC HYD ISOLATE warning light illuminated
2) SERVO JAM warning light illuminated
Possible symptoms:
3) High-pitched noise from transmission area
4) Stiffness in flight controls

Answer 5

Secondary Hydraulic System Low Fluid Level (pg 72-77)

1) TAIL HYD ISOLATE switch - NORM
(Caution: if pedal pressure is not relaxed prior to placing the TAIL HYD isolate switch back to NORM, a rapid right yaw and pedal induced MGB overtorque may occur)
2) a lot of non-memory…

Question 6

1) SEC HYD HI PRES warning light illuminated

2) SEC HYD LO PRES warning light illuminated

Answer 6

Secondary Hydraulic Pressure High/Low (pg 77-78)

1) Landing gear handle - down (check wheels down)
2) Safety pin - install (if available)
3) Monitor for indications of a secondary hydraulic system failure
4) Land as soon as practicable

Question 7

1) SERVO JAM warning light illuminated

2) Flight control loading may increase

Answer 7

Servo Jam (pg 78)

1) SC JAM CB - pull, reset (pilot aft R5#8)
2) Land as soon as practicable

Question 8

Any ONE of the following conditions:

1) HYD 1 pressure indication goes to full scale, zero, or is blanked
2) HYD 2 pressure indication goes to full scale, zero, or is blanked
3) PRI SERVO P warning light illuminated
4) SEC SERVO P warning light illuminated

Answer 8

Hydraulic Indicating System Failure (pg 79)

1) Monitor for secondary indications
2) Abort mission