Inoperative Equipment With Hydraulic Failure
Left System No Pressure
-Left brake system (accumulator pressure available)
-Left nosewheel steering actuator
-Reverser (accumulator pressure available)
-Flap outboard cylinders
-Inboard spoilers
-Elevator augmentor (accumulator pressure available)
Right System No Pressure
-Right brake system (accumulator pressure available)
-Right nosewheel steering actuator
-Reverser (accumulator pressure available)
-Flap inboard cylinders
-Outboard spoilers
-Powered rudder (manual only)
-Hydraulic landing gear extension (must use emergency gear
extension lever to freefall gear)
MD-80 Sec. 3 Page 73
Flight Manual Continental Rev. 08/01/98 #27
HYDRAULIC QUANTITY LOSS
TRANS HYD PUMP Switch........................................................OFF
ENG HYD PUMP Switch (Affected System) .............................. OFF
IF Right System Affected:
AUX HYD PUMP Switch...................................................... OFF
WARNING: Certain hydraulic leaks can produce toxic smoke in the cabin. If smoke is encountered, turn the AIR CONDITIONING SUPPLY switch on the affected side to OFF.
IF Both Hydraulic Quantities Deplete to Zero: Proceed to LANDING WITH NO HYDRAULIC PRESSURE this section.
* * * *
IF One System Remains:
Note: Use affected system for approach and landing if any quantity remains. If loss is in right system and AUX HYD PUMP was not operating when hydraulic loss occurred, it would be preferable to operate this pump only.
Note: When extending slats on a single hydraulic system, slow to clean minimum maneuver speed or 240 KIAS, whichever is less. Move FLAP/SLAT handle directly to 15. detent.
Note: Nosewheel steering in direction of operating system will be restricted. Note: Do not arm autobrake system (if installed). IF Right System Is Unpressurized:
RUD HYD CONT Lever......................................................MAN WARNING: Rudder will revert to manual. Minimum approach speed is 135 KIAS until landing is assured.
Refer to ALTERNATE GEAR EXTENSION WITH RIGHT
HYDRAULIC FAILURE, this section. Accomplish normal approach and landing. Refer to INOPERATIVE EQUIPMENT WITH HYDRAULIC FAILURE preceding this checklist.
* * * *
Sec. 3 Page 74 MD-80
Rev. 08/01/98 #27 Continental Flight Manual
HYD TEMP HI LIGHT ON
TRANS HYD PUMP Switch............................................................... OFF
ENG HYD PUMP Switch (Affected System) ..................................... OFF
AUX HYD PUMP Switch (If Right System) ...................................... OFF
- - - - - PRIOR TO APPROACH AND LANDING - - - - -
Hydraulic Pumps (Affected System)..................................................... ON
* * * *
MD-80 Sec. 3 Page 75
Flight Manual Continental Rev. 05/15/95 #23
LANDING WITH NO HYDRAULIC PRESSURE
Note: If flaps and/or slats are extended, they will tend to remain in their last selected position.
Note: Use longest available runway commensurate with conditions (wet or dry, crosswind, etc.)
Note: Speedbrakes/spoilers and nosewheel steering are not available. Rudder will revert to manual. Reverse thrust, anti-skid braking and elevator augmentation are available from accumulator pressure. In order to preserve maximum accumulator capacity, do not depress brake pedals prior to touchdown.
Note: Autobrakes (if installed) should not be armed for landing.
Gross Weight............................REDUCE TO LOWEST PRACTICABLE
Approach Speeds......................DETERMINE FOR LANDING WEIGHT
IF Flaps/Slats Are Not In Normal Landing Range:
Refer to V-SPEEDS FOR ABNORMAL LANDINGS in Section 5 for the appropriate Vref speed. If landing with flaps up, do not make wind corrections to the Vref speed.
Plan a wide pattern and longer than normal final approach for speed stabilization. Maintain a descent gradient of not less than 2.5°.
TRANS, AUX, & Both ENG HYD Pumps ........................................... OFF
RUD HYD CONT Lever..................................................................... MAN
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