Super 80 Professional – AOM
APU
Section 9 Page 2
Super 80 Professional – Aircraft Operating Manual
Coolsky, 2018
GENERAL
General
The Auxiliary Power Unit (APU) is a gas
turbine engine installed to supply pneumatic
requirements for cabin air conditioning and
engine starting as well as electrical power
for normal airplane systems operation while
on the ground. The APU is operable in flight
to supply an alternate source of electrical
power. The APU installed aft of the rear
pressure bulkhead in the unpressurized area
of the lower fuselage.
All APU controls and indicators are located
on the overhead panel.
Limitations
The APU can be started on the ground or in-
flight. Maximum operating altitude for the
APU is FL350. Maximum starting altitude for
the APU is FL240. APU bleed air is only
available on the ground.
Electrical system
A 40 KVA power AC generator is mounted
on the APU to provide electrical power to
either or both electrical systems.
