CHAPTER 52
DOORS AND WINDOWS
52-00 Description
The R66 has four passenger doors and one main baggage compartment door. Passenger doors
may be removed and installed by maintenance personnel or pilots.
Passenger doors are constructed of berglass and thermoplastics. Passenger doors, locks,
weather seal, gas springs, and door vents and hinges may be replaced, and vent pivot friction
may be adjusted.
Periodically inspect windshield for cracks or crazing and replace windshield that exceeds
damage criteria per Section 52-30.
52-10 Door Assembly
Refer to R66 Illustrated Parts Catalog (IPC) Chapter 52.
A. Removal
1. Refer to Figures 52-1 and 52-2. To disconnect door from gas spring mechanism:
a. Forward Doors: Pull D573-4 rod up and off of arm assembly ball joint.
b. Aft Doors: Insert flat-tip screwdriver and pry up spring clip locking C394-1 gas
spring to channel ball joint. Pull gas spring up and off of ball joint.
2. Remove rings from door hinge pins, lift pins up from door frame hinge assemblies, and
remove door.
B. Installation
WARNING
Failure to install a ring in each door's two hinge pins may allow
door to depart aircraft in flight.
1. Refer to Figures 52-1 and 52-2. Align and insert door hinge pins in door frame hinge
assemblies.
2. Align forward door D573-4 rod with arm assembly ball joint, or aft door C394-1 gas
spring with channel ball joint, and push down to lock.
3. Install rings in door hinge pins.
25 OCT 2010 R66 Maintenance Manual Chapter 52 Doors and Windows Page 52.1
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