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A handle on the left of the door operates two locking bolts. The locking bolts are at the bottom front and rear corners of the door.
The handle has two parts. The inner handle is black and has a double lever. The outer handle is red and attaches to the inner handle with two roll pins. A long connecting rod attaches to the rear of the double lever. The other end of the long connecting rod attaches to the inside of the rear locking bolt. A safety lock is fitted to prevent accidental movement of the handle.
You must lift the safety handle before you can operate the black handle from inside the passenger compartment. To operate the red handle from the outside you must push the button next to the red handle to lift the inner safety lock.
A short connecting rod attaches to the front of the double lever. The short connecting rod goes to the front locking bolt. If you pull the canopy handle away from the canopy frame, these things happen:
) The double lever turns to pull the both of the connecting rods.
) The long connecting rod pulls the rear locking bolt forward.
) The short connecting bolt pulls the front locking bolt aft. The aft movement of the locking bolt operates a micro switch for the door unlocked warning light (DOOR or DOORS) located on the annunciator panel.
The door can be pushed up and out to open.
With the door fully closed, push the door handle towards the door frame. This engages the locking bolts in the fuselage holes. The forward locking bolt operates the door unlocked micro switch. When the handle is flush with the door frame, the door is locked. Push outwards on the bottom of the door frame to make sure that it is locked.
Doc # 6.02.01 Page 7
Rev. 4 09 Jan 2003

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DA 40 Series
Doors AIRCRAFT AMM
Hinges
Gas Spring Strut
Rear Locking Bolt
Passenger Door
Door Handle
Front Locking Bolt Child Safety Lock
Door-Closed Switch Fuselage Shell
Locking Clip Long PTFE Block
Connecting Rod
Inner Fork
Door Handle End-Fitting

Door Frame
Short
Connecting Rod

Locking Bolt
PTFE Bush
Door Frame Locking Clip
Fork
Outer Door End-Fitting Front HandleLocking Bolt Door-HandlePTFE Bush Spring
Door-Closed Microswitch
% Figure 4: Passenger Door
Page 8 Doc # 6.02.01 09 Jan 2003 Rev. 4
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Doors
AMM

Trouble-Shooting
1. General
This table below lists the defects you could have with the canopy and passenger door. If you have the trouble detailed in the Trouble column, read across to the Possible Cause column. Then do the repair in the Repair column.
Trouble  Possible Cause  Repair 
Canopy/door is difficult to move.  Canopy/door frame damaged. Canopy/door hinges damaged. Gas spring strut defective.  Replace the canopy/door. Replace the damaged parts. Replace the gas spring strut. 
Canopy/door handle is difficult to move.  Locking bolts damaged. Handle bushes damaged.  Replace the damaged bolt. Replace the canopy/door. 
Canopy handle is difficult to move.  Teleflex cable defective.  Replace the teleflex cable. 
Incorrect operation of door unlocked warning on the annunciator panel.  Canopy/Door micro-switch incorrectly adjusted. Canopy/Door micro-switch defective. Defective wiring.  Adjust Canopy/Door micro switch. Replace defective micro switch. Do a continuity test of the wiring. Refer to Chapter 92 for the wiring diagrams. 

Doc # 6.02.01 Page 101
Rev. 4 09 Jan 2003

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AMM

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Doors
AMM

Maintenance Practices
1. General
These maintenance practices tell you how to install and remove the canopy and passenger door. They also tell you how to test and adjust the locking mechanism.
　
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