MAULE AEROSPACE TECHNOLOGY, INC.
MAINTENANCE MANUAL
FOR M-5-220C
Rev. B 23/38
The fuselage is a welded truss type structure having an integral vertical tail fin. Chrome
molybdenum steel (4130) is used for all tube members, control fittings, floor supports and seat
members. Doorframes and other nonstructural parts are made of cold rolled steel (1008 to 1015)
or stainless steel (per customer’s request).
If it becomes necessary to replace any fuselage members, sleeve type splices should be
made in accordance with practices outlined in FAA AC 43.13-1, Aircraft Inspection and Repair.
The forward fuselage section is aluminum covered (5052-H34 or 2024-T3). The firewall and
bottom fuselage just aft of the cooling air egress are made of .018 CRS (1008) and is cadmium
plated or primed with zinc chromate or are made of .018 galvanized sheet steel.
The aft fuselage section is covered with Fiberglass fabric and standard dope finish. This
covering is the Razorback method as per Instruction Manual No. 39-5 by Planters, Inc., Blythe-
ville, Arkansas. This fabric need not be pulled or punch tested.
:
The ailerons and flaps are aluminum alloy structures covered with 2024-T3.
The aileron control system consists of a chain drive connecting the two control wheels and
is attached to the necessary cables which are routed over pulleys through the fuselage and into
the wing section to the aileron horns.
The flap control system consists of a control lever, which has two active positions, 15° and
35° or *20° and *40°. This is connected to the control cables which are routed to the flap through
the fuselage and wing to the flap bellcrank which operates the flap by means of a push-pull rod
attached to the inboard hinge fitting.
:
The elevator has a chrome molybdenum (4130) internal structure covered with fiberglass
fabric. Inspect for corrosion. Drain grommets should be kept open. The hinge attachments
should be lubricated with light engine oil. Accumulations of dust and dirt on hinges should be re-
moved.
:
The stabilizers have chrome molybdenum steel (4130) internal structures covered with fi-
berglass fabric. Inspect for corrosion including elevator hinges and struts.
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