757 Airplane Recovery Document 飞机恢复文件(96)

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4.  The safety pins for the landing gear doors should also be installed to make sure the doors do not close when someone is working in or near the wheel wells for the landing gear.
A.  Install the main landing gear doors downlock pins using the following procedures: Refer to MM 32-00-15 for additional information.
(1)  If the electrical system is energized and the center hydraulic system is pressurized, do the steps below:
(a)  Push the main gear door unsafe LT PTT switch, on the P72 panel, to make sure the door unsafe lights come on. See Figure 4-3.
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GENERAL
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WARNING:  MAKE SURE THAT THE DOOR UNSAFE LIGHT IN EACH WHEEL WELL FOR THE MAIN LANDING GEAR IS OFF. IF A DOOR UNSAFE LIGHT IS ON, DO NOT GO INTO THE RELATED WHEEL WELL. WHEN A DOOR UNSAFE LIGHT IS ON, THE DOOR FOR THE RELATED MAIN LANDING GEAR IS IN A NOT SAFE CONDITION AND CAN ACCIDENTALLY CLOSE. THE DOORS CLOSE QUICKLY AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(b)  
Release the switch and make sure the lights go off.

(c)  
Install the safety pin in the door actuator lock. See Figure 4-4.

(d)  
Make sure the REMOVE-BEFORE-FLIGHT streamer is extended and can be easily seen.

B.  Install the nose landing gear door downlock pins using the following procedures: Refer to MM 32-00-15 for additional information.
(1)  If the electrical system is energized and the center hydraulic system is pressurized, do the steps below:
(a)  Push the nose gear door unsafe LT PTT switch, on the P63 panel, to make sure the door unsafe light comes on. See Figure 4-3.
WARNING:  MAKE SURE THAT THE DOOR UNSAFE LIGHT IN EACH WHEEL WELL FOR THE NOSE LANDING GEAR IS OFF. IF THE DOOR UNSAFE LIGHT IS ON, DO NOT GO INTO THE WHEEL WELL. WHEN THE DOOR UNSAFE LIGHT IS ON, THE DOORS FOR THE NOSE LANDING GEAR IS IN A NOT SAFE CONDITION AND CAN ACCIDENTALLY CLOSE. THE DOORS CLOSE QUICKLY AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
WARNING:  MAKE SURE THAT THE DOOR UNSAFE LIGHT IN EACH WHEEL WELL FOR THE NOSE LANDING GEAR IS OFF. IF THE DOOR UNSAFE LIGHT IS ON, DO NOT GO INTO THE WHEEL WELL. WHEN THE DOOR UNSAFE LIGHT IS ON, THE DOORS FOR THE NOSE LANDING GEAR IS IN A NOT SAFE CONDITION AND CAN ACCIDENTALLY CLOSE. THE DOORS CLOSE QUICKLY AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(b)  
Release the switch and make sure the light goes off.

(c)  
Install the door lock in the door actuator lock. See Figure 4-5.

(d)  
Make sure the REMOVE-BEFORE-FLIGHT streamer is extended and can be easily seen.

NOTE: FOR LANDING GEAR DOOR SAFETY PINS REMOVAL PROCEDURES REFER TO AMM CHAPTER 32.
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GENERAL
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757
AIRPLANE RECOVERY DOCUMENT

　
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