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General Description
You open and close the cargo door manually. The door has
hinges on their upper edge, and swings open in a upward and
inward motion. A counterbalance mechanism in the door helps
lift the door and holds it in an uplock position.
You can open the door from inside or outside of the cargo
compartment.
Exterior Operation
To open the cargo door from outside the airplane, pull the
handle fully out of its recess and turn the handle
counterclockwise. This disengages the door latch
mechanisms. The door then moves inboard by the action of
the counterbalance mechanism. When the door is free of the
latch mechanisms, return the handle to its recess. When you
begin to push the door open, the door counterbalance will lift
the door to the fully open position and hold it there.
An adjustable nylon safety strap is on the ceiling of the cargo
compartment. You can use it to hold the cargo door in the open
position if necessary.
Before you close the door from outside of the airplane, examine
these things:
* The cargo nets should be secure to prevent cargo from
contact with the door components
* The door frame should be clear of obstruction.
To close the door, do these steps:
* Pull the soft-grip bungee lanyard at the forward edge of the
door. This will pull the door out of uplock and lower the door
until you can reach the handle.
* When you have the handle, release the lanyard and the
bungee will retract it back into the cargo compartment.
* Turn the handle counterclockwise so that the door latch
rollers will enter their latch tracks.
* Pull the door to the closed position with the handle.
* Turn the handle clockwise to fully close and latch the door.
* Return the handle to its recess.
Interior Operation
You can open and close the cargo doors from inside the cargo
compartments. The interior handle is not retractable. The
procedure is similar, except you turn the inside handle
clockwise to unlatch the door and counterclockwise to latch
the door.
Training Information Point
A switch on the forward door latch mechanism causes the P5
door warning light to come on (unlatched) or go off (latched).
Properly secure the baggage in the cargo compartments with
the cargo nets and other cargo restraints. This will keep the
baggage from contact with the door and it’s mechanisms.
DOORS - CARGO - OPERATION
EFFECTIVITY
GUN ALL 52-30-00
Page 13
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
52-30-00-020
The forces required to operate the door are not great. If a door
is difficult to operate, the door may be jammed by loose cargo
or there may be a malfunction of a door component.
DOORS - CARGO - OPERATION
EFFECTIVITY
GUN ALL 52-30-00
Page 14
D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
52-30-00-020
DOORS - CARGO - OPERATION
DOORS - CARGO - OPERATION
EFFECTIVITY
GUN ALL 52-30-00
Page 15
D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
52-30-00-020
THIS PAGE IS INTENTIONALLY LEFT BLANK
52-40-00
Page 1
D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
Purpose
The miscellaneous exterior service doors give access to areas
with components that require regular servicing.
IDG Oil Reservoir Access Door
The IDG oil reservoir access door is on the left forward engine
fan cowl. It gives access to the IDG oil reservoir and sight gage.
Ground Air Conditioning Access Door
The ground air conditioning access door is on the lower
fuselage centerline, forward of the air conditioning bay doors.
Waste Service Panel
The waste service panel is on the aft, lower left surface of the
fuselage. It gives access to the lavatory drain outlet, drain valve
handle, and rinse fitting.
Section 48 Access and Blowout Door
The section 48 access and blowout door is on the left side of the
lower fuselage, aft of the aft pressure bulkhead. It hinges open
downward to give access to the section 48 components.
The door has a spring-loaded latch system. This protects the
empennage structure if the aft pressure bulkhead fails. The
door latch will open when a load of 52-68 pounds is put on the
　
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