Still approved...
POWERBACK
General
The powerback maneuver can be an efficient means for the airplane to
depart the gate and transition to the taxi phase. There are, however,
several factors of safety and passenger comfort that must be considered
before commencing the maneuver and during the maneuver itself. These
considerations are as follows:
• Flight and ground crew must have completed an appropriate
powerback procedures training program.
• Powerback can be performed only in approved ramp areas.
• Thrust reversers on both engines must be operative.
• Ramp must be clear of contamination.
• There must be no more than moderate precipitation.
• Use minimum reverse thrust required.
• Do not use brakes while the airplane is moving rearward.
• Both pilots should have their feet on the floor during the powerback
maneuver.
• Verify all personnel and equipment are clear of engines fore and aft
prior to initiating movement of thrust levers.
