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inside of the door.
Engine Oil Tank Access Door
The engine oil tank access door is on the right forward engine
fan cowl. It gives access to the engine oil tank filler cap and
sight glass.
External Power Receptacle Door
The external power receptacle door is on the lower right
fuselage, forward of the nose wheel well. It gives access to the
external power receptacle and panel. The door also gives
access to the nose wheel well light switch.
Center Fuel Tank Sump Access Door
The center fuel tank sump access door is on the keel beam
between the air conditioning pack bays. It gives access to the
center fuel tank sump valve.
Hydraulic Brake Accumulator Access Door
The hydraulic brake accumulator access door is aft of the right
main landing gear wheel well. It gives access to the hydraulic
brake accumulator and the standby hydraulic pump
components.
Water Service Panel
The water service panel is on the aft, lower right surface of the
fuselage. It gives access to the potable water system valve
handles and fill fitting.
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Location
The forward equipment compartment access door is forward of
the nose wheel well.
General Description
The door is a plug type door. It hinges on its aft edge and
swings open upward, into the fuselage.
The door structure is an aluminum casting. A continuous seal
around the door prevents loss of cabin pressure. Pressure
loads transmit from the door to the door frame by stop pins and
pads.
Two hinge arms on the door extend aft to engage hinge fittings
on the nose wheel well forward bulkhead.
A guide pin on the forward edge of the door aligns the door as it
closes.
The door latch mechanism holds the door closed, and has these
parts:
* Spring-loaded handle with a push-button release
* Handle shaft and link
* Latch pin plunger.
Operation
The handle fairs with the door skin. Push on the button marked
PUSH, and the handle extends from spring force.
Turn the handle counterclockwise and the latch pin retracts
from its boss. This unlatches the door. You can then push the
door open. A spring-loaded catch that engages the left side of
the door holds the door fully open. When the door is open, you
can turn the handle clockwise and push it into its recess.
When you close the door, you must extend the handle and turn it
counterclockwise to retract the latch pin. This allows the door to
seat in its frame. When the door is closed, it latches with a
clockwise turn of the handle. This forces the latch pin into the
frame boss. When the door is closed and latched, push the
handle back into its recess.
Operational Displays
The forward equipment compartment access door has an
interface with the door warning system. It shares the P5 panel
EQUIP door warning light with the EE compartment external
access door.
When the door is not latched, the latch pin does not push on the
door warning microswitch. The switch closes and the P5 panel
EQUIP door warning light comes on.
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When the door latches, the latch pin enters the frame boss and
opens the door warning microswitch. This removes the ground
from the light.
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