T-45C TS, ADV & IUT EMFP-04
Engine and Hydraulic Emergency Procedures
II.
Hydraulic system malfunctions
Sg 2, fr 2
Lesson Organization
WARNING: Loss of all hydraulic pressure with
ENGINE AND HYDRAULIC
subsequent illumination of the HYD FAIL warning light
EMERGENCY PROCEDURES
will result in loss of control of the aircraft.
* Fuel system
malfunctions
* Hydraulicsystem
A.
Hydraulic accumulator failure 1.8.1.5.8.2
malfunctions
* Engine malfunctions
1.
Indications
a.
Ground: Absence of adequate accumulator
pressure (1,100 + 50 psi) prior to engine start
Sg 2, fr 3
during preflight
Hydraulic Accumulator
Failure (1 Overlay)
b.
In flight
NOTE: Both systems, including accumulators,
supply continuous hydraulic power to flight
controls.
(1) With both hydraulic systems operating
normally, there is no indication of a single
accumulator failure. If one accumulator
Overlay 1
fails, then the redundant accumulator
provides adequate pressure damping and
reserve power.
(2) If the aircraft is operating on only one
hydraulic system and that system
accumulator fails, or if both accumulators
fail at once, then controls rely on line
pressure only and flight controls may not
respond smoothly, especially during
periods of high demand (a large or rapid
control stick displacement)
Original (9-98)
Page 4-11
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