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MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Date
MAR 2017
Rev Date
Page 5
52- 00- 00 - GENERAL
Both cabin doors are constructed of an inner and outer
composite shell fastened together by a 2- part epoxy
compound. The doors are provided with single opera-
tion dual latching mechanisms, 1) a lock pin extends
into a mating receptacle in mid- lower door frame, and
2) a jaw type latch clamps a special designed nut in the
upper door frame to hold door securely in place. The
door is hinged at the forward edge by 2 billet, aluminum
hinges. A guide pin is in both door assemblies to assist
in holding both doors tightly shut at forward, upper door
area. The inner and outer handles are interconnected
by adjustable push- pull tubes. This mechanism is
spring loaded to an over center position in the latched
position for positive security. Adjustment for each
push- pull tube is provided to accurately rig latching pin
and jaw type latch. Adjustment to the special nut at the
top of door frame can be made for proper closure.
The baggage compartment door is constructed of an
inner and outer heat treated, aluminum shell, fastened
together by rivets. It has dual pin latches that extend
into receptacle fittings on both sides of the door frame
when exterior handle is closed properly.
The auxiliary exit handle is located inside baggage
door. This handle can be operated from inside even if
outer handle is locked. A cam mechanism allows a cle-
vis pin to bypass outer handle latch groove and open
the two latching pins which hold baggage door closed.
(Refer to POH/AFM Section III for specific procedures
to operate auxiliary exit handle.) This door is hinged at
the top with an extruded piano type hinge.
Hold open arms are attached on doors to assist in hold-
ing doors open.
A door lock is provided for both entrance doors and the
baggage door. A single key will operate all door locks.
Interior panels require removal if door locks are to be
removed and replaced.
COTTER PINS
DOOR
WASHER
HOLD OPEN
ARM
WASHER
MOUNTING
SCREW
HINGE PIN
ROLL PIN
BUSHINGS
VIEW
ROTATED FOR
CLARITY
REF: DOOR FRAME
PILOTS
DOOR
CABIN DOORS ATTACHING HARDWARE
FIGURE 52- 1
52- 10- 00 - CABIN DOORS – MAINTENANCE
PRACTICES
1. The cabin doors may be removed to replace or re-
pair door. A new door will need to be fitted to door frame
by carefully trimming outer edges of door shell.
A. Remove interior panel(s) around door frame
area.
B. Remove hold open arm at lower door frame, by
removing cotter pin and washers from hold open arm
shaft Figure 52-1.
C. Remove eight (8) screws from outside airplane
that hold upper and lower hinges (door side) in place.
(Figure 52- 1).
2. Door Repair.
A. The door should be repaired, if applicable, ac-
cording to standard procedures in AC 43.13- 1B CHG
1.
52- 00- 00