AIRPLANE
OPERATIONS
MANUAL
ABNORMAL
PROCEDURES
REVISION 36
1-03-48
Page
1
Code
03
AOM-145/1114
HYDRAULIC POWER
BOTH HYDRAULIC SYSTEMS FAILURE
EICAS CAUTION: HYD SYS 1-2 FAIL, RUDDER SYS 1-2 INOP,
AIL SYS 1-2 INOP
EICAS ADVISORY: E1-2 HYD PUMP FAIL
LIGHT: Master Caution
INDICATION: Hydraulic pressure indication on MFD may be amber.
Airspeed........................................................................ MAXIMUM
250 KIAS
Check hydraulic systems fluid quantity:
If any hydraulic system fluid quantity is in green range:
Associated Electric Hydraulic Pump .................. ON
If any hydraulic system fluid quantity is in amber range:
Associated Electric Hydraulic Pump .................. OFF
CAUTION:
DO NOT OPEN THE SPEED BRAKE.
If one system can be recovered, complete the appropriate procedure
for one hydraulic system failure.
If both systems remain inoperative:
Quick Disconnect Button ......................................... PRESS
Both Electric Hydraulic Pumps ................................ OFF
NOTE: The nose landing gear doors will open, therefore the pilot
should expect noise increase.
ABNORMAL LANDING GEAR
EXTENSION Procedure ..................................... ACCOMPLISH
Rudder and aileron are operating under mechanical reversion
mode. Expect greater rudder pedals and control wheels control
forces. Both pilots should act together to control the airplane, if
required. Consider the use of aileron and asymmetric thrust to help
in yaw control.
Land at the nearest suitable airport. Avoid landings at airports with
anticipated crosswind or turbulence. Perform a long final approach.
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