CABIN DOOR
Copyright . The Boeing Company. See title page for details.
1.40.26 June 6, 2003
Airplane General, Emergency Equipment, Doors, Windows -Systems Description
737 Operations Manual
DOOR LOCK SWITCH
CAB DOOR
UNLOCKED
- Illuminates when the cabin door is unlocked.
- Press to lock the doorAFT ELECTRONIC PANEL when AC power is available.
MIRROR VIEWER BLOWOUT PANEL PANEL HINGE EMERGENCY EXIT HANDLE BLOWOUT PANELS
FROM INSIDE FLIGHT DECK Flight Deck Door (as installed) CABIN DOOR
The flight deck door meets requirements for resistance to ballistic penetration and intruder entrance. The door opens into the passenger cabin. When closed, the door locks when electrical power is available and unlocks when electrical power is removed. A viewing lens in the door allows observation of the passenger cabin.
The door can be manually opened from the flight deck by turning the door handle. The door incorporates a deadbolt with a key lock on the passenger cabin side. Rotating both concentric deadbolt levers to the locked (horizontal) position prevents the passenger cabin key from unlocking the door. Rotating only the forward deadbolt lever to locked allows the key to unlock the door.
The flight deck access system consists of an emergency access panel, chime module, three position door lock selector, two indicator lights, and an access system switch. The emergency access panel includes a six button keypad for entering the numeric access code along with red, amber, and green lights. The red light illuminates to indicate the door is locked. When the correct emergency access code is entered, the amber light illuminates. The green light illuminates to indicate the door is unlocked.
Copyright . The Boeing Company. See title page for details.
December 5, 2003 1.40.27
Airplane General, Emergency Equipment, Doors, Windows -Systems Description 737 Operations Manual
Two indicator lights and a three position door lock selector are located on the aisle stand. Illumination of the amber LOCK FAIL light indicates the door lock has failed or the access system switch is in the OFF position.
The emergency access code is used to gain access to the flight deck in case of pilot incapacitation. A flight deck chime and illumination of the amber AUTO UNLK light indicates the correct emergency access code has been entered and the door is programmed to unlock after a time delay. Selecting the DENY position on the door lock selector denies entry and prevents further keypad entry for several minutes. To allow entry, the selector is turned to the UNLKD position which unlocks the door while held in that position. If the emergency access code is entered and the pilot takes no action, the door unlocks after expiration of the time delay. Before the door unlocks, the chime sounds continuously and the AUTO UNLK light flashes.
By pressing "1" then "ENT" keys on the emergency access panel, the flight deck
chime will sound (if programmed). The door incorporates two pressure sensors that unlock the decompression panels in the event pressurization is lost. The decompression panels have manual release pins. Pulling the pins frees the panels allowing egress in the event the door is jammed.
DEADBOLT
BLOWOUT PANEL
VIEWER
BLOWOUT PANEL
FLIGHT DECK DOOR
Copyright . The Boeing Company. See title page for details.
1.40.28 December 5, 2003
Airplane General, Emergency Equipment, Doors, Windows -Systems Description
737 Operations Manual
Flight Deck Number Two Windows
The flight deck number two windows can be opened on the ground or in flight and can be used for emergency evacuation. The associated window lock lever locks or unlocks the window.
Lower Cargo Compartments
The lower cargo compartments, if equipped with smoke and fire detectors and with a built-in fire extinguisher system controlled from the flight deck, satisfy the requirements for Class C compartments.
Note: The certification standards for fire safety in Class D cargo and baggage compartments have been changed. Class D compartments in airplanes used for passenger service must now comply with the standards for Class C compartments. Class C standards require that a compartment be equipped with smoke and fire detectors and with a built-in fire extinguisher system controlled from the flight deck. No inflight access is necessary, but the flight crew must be able to control the ventilating airflow into these compartments. Class D compartments in airplanes used only for cargo service must also comply with the standards for Class C, or with the detection standards for Class E compartments.
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