MD Helicopters CSP-900RMM-2, Техническое обслуживание и ремонт

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CSP − 900RMM − 2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 24
Original
53-30-00
D. Striker Plates
The baggage door installation installs three
striker plates; an upper, a lower, and side
striker plate. Each striker plate is installed
with screws. The striker plates are fabricated
from corrosion resistant steel sheet.
7. Forward Fairings and Doors Installation
(Ref. Figure 12)
The forward fairings and doors installation
includes the forward and aft swashplate
fairing assemblies, the left and right forward
access door assemblies, the left and right
transmission access door assemblies, hinge
and door latch hardware, and the left and
right forward fairing support assemblies.
Components within this installation, although
not considered structural, do transfer and
support aerodynamic air loads generated by
flight or by main rotor down wash.
A. Swashplate Fairing Assemblies
The forward and aft swashplate fairing
assemblies join to each other on each side. The
forward end of the combined assembly is
attached to the FS 155.50 fuselage bulkhead.
The aft end of the combined assembly is
attached to the forward firewall assembly and
the left and right inlet panels. The center of
the combined assembly is attached to the
forward fairing support assemblies. All
attachments to supporting structure or
components, as well as at the joint to each
other, is by screws and bolts.
The forward and aft swashplate fairing
assemblies are constructed of multiple plies of
graphite/epoxy cocured with Nomex honey­
comb core. Around the periphery of each panel
assembly, and in the areas of secondary
attachment, the core tapers and the sandwich
panel transitions to form monolithic laminate
flanges that incorporate additional reinforce­
ment plies of graphite/epoxy.
B. Forward Fairing Support Assemblies
The left and right forward fairing support
assemblies, attach to and support the forward
and aft swashplate fairing assemblies. Door
latching strikers/receptacles are attached at
forward and transmission access door interface
locations. In addition, the support assemblies
provide the aft and forward seal lands for the
forward and transmission access doors.
(NACA CONFIG) −
On aircraft with NACA
engine inlets installed, the forward fairing
support assemblies also support the forward
end of the NACA inlet duct.
Each forward fairing support assembly
consists of metallic supports, frames, doublers,
intercostals, angles, a 4-mesh wire oil cooler
inlet screen, and a composite oil cooler inlet
duct frame. All metallic components are
fabricated from aluminum alloy sheet. The
4-mesh wire cloth oil cooler inlet screen is
fabricated from 0.032-0.035 in. (0.81-0.89
mm) diameter corrosion resistant steel wire.
The oil cooler inlet duct frame is fabricated as
a cocured multiple ply monolithic laminate
incorporating graphite/epoxy and fiberglass/
epoxy.
C. Fixed Panel Assemblies
The left and right fixed panel assemblies are
removable filler panels that are installed
between the lower aft edge of the transmission
access door and the lower edge of the forward
inlet panel. The fixed panel assemblies
complete the seal land and incorporate the aft
mounting provisions for the transmission
access doors. Attachment of the panel assem­
blies is by screws and bolts.
The fixed panel assemblies are built-up
assemblies. Each assembly consists of a panel,
frame, and spacer, as well as standard
hardware. All components are fabricated from
aluminum alloy sheet.