Passenger Stairway PS-813B/E Boeing | 17
SECTION 1 - PROCEDURES, SPECS & CAPABILITIES
3. For night operations, turn on stairway, platform and A-frame lights
by engaging LIGHTS switch (Figure 1.1.3.1).
4. Proceed to top of stairs and slide platform side panels rearward.
5. Open aircraft door as prescribed in the airline manual.
6. Slide side panels forward until they latch.
1.2.3.8 | Removing the Stairway from Aircraft
1. Slide platform side panel away from door.
2. Close the aircraft door as prescribed by the aircraft manual.
3. Secure platform side panels by latching with foot latch in one of
the stops.
4. Raise stabilizers as follows:
• Ensure that the engine is running.
• Place and hold STABILIZER control valve handle in UP position
until stabilizers are fully raised.
5. Pull stairway a short distance away from aircraft. Stairway can now
be lowered.
6. Tow stairway away from vicinity of aircraft.
1.2.3.9 | Charging the Battery
Two 6 V batteries provide electrical power for the engine electric starter
and the stairway and A-frame lights. These batteries are charged by
means of a battery charger which requires external 120 VAC power
supplied through a power cord on the charger.
1. To charge the batteries, connect facility 120 V, 60 Hz power to
stairway battery charger cord. Charger functions whenever the unit
is plugged in.
2. Always disconnect external power cord before towing stairway.
1.2.4 | Emergency Operating Procedures
In case the engine, hydraulic system or electrical system is disabled, the
stairway unit should be towed away from the aircraft and repaired. If
the stabilizers are down, raise the stabilizers (using auxiliary hand pump)
before towing the stairway unit.
1.2.4.1 | Operating Auxiliary Hand Pump
The auxiliary hand pump provides emergency hydraulic power for
operating the stairway, A-frame and stabilizers in case the engine-
NOTE:
Stairway should be raised to
service height before adjusting
A-frame height.
NOTE:
The A-Frame ratchet does not
have to be locked in ratchet
stop for normal operation. It
is intended as a safety device
in the event of cylinder failure.
The ratchet assembly (dogs)
must operate freely and be
in with the ratchet bars on
the A-Frame for normal safe
operation.
NOTE:
The side panel locks are on
the platform oor and can be
released by foot.
To Next Page
Loading...