MAINTENANCE OF THE M88A1 - OD1672 - LESSON 3/TASK 1
APU ELECTRICAL SWITCHES.
To start the APU:
The access door to the APU can swing shut and injure
personnel performing maintenance checks and services
on the unit, unless the door is properly secured by a
strap. To secure this door, use stowage straps 4, 6,
and 7, (figure 30