MD-11 Flight Crew Operations Manual
k
Engines -
Description and Operation
Eng.10.11
As the reverser levers are raised to reverse idle, each N1 display on the EAD will
show an amber U/L (reverser unlocked). When the reversers are fully deployed
and available, a green REV will appear on the N1 displays.
NOTE: The U/L and REV displays are red during flight.
When reducing reverse thrust, the reverser lever will be returned to the reverse idle
detent. This position is felt as a slight increase in resistance to lever movement.
The reversers are stowed by movement of the reverser levers through the reverse
idle detent to the forward idle stop position.
The EAD displays U/L in each N1 display as each reverser is being stowed. The
U/L message will be removed when forward thrust is restored.
Thrust reverser override switches are installed on the cockpit maintenance panel.
These switches allow maintenance checks of the reverse thrust range of the
throttle resolvers. When pushed, these switches cancel the ECU signals to the
wing engine reverser interlocks in the pedestal. This releases the reverser levers
so that they can be moved without operating the thrust reversers.
Test Displays
EAD
Engine EAD failure indications are amber Xs over the thrust limit, TAT, and fuel
flows, and larger amber Xs over the tapes. These failure indications will appear
when all of the following conditions are met:
• The aircraft is on the ground.
• The aircraft is operational.
• The ANNUN LT TEST button on the forward overhead panel is pushed.
SD
SD secondary engine display power failure indications are amber Xs over the
digital readouts. In the case of the oil PRESS, TEMP, and QTY the amber Xs are
over the tapes. These failure Xs will appear when all of the following conditions
are met:
• The aircraft is on the ground.
• The aircraft is operational.
• The ANNUN LT TEST button on the forward overhead panel is pushed.
• Secondary engine display is on the SD.
October 02, 2006
To Next Page
Loading...