Maintenance Practices; Vent System; Vent System Inspection - MD Helicopters MD Explorer Servicing And Maintenance

1. Vent System

(Ref. Figure 201)
A. Vent System Inspection
(1). Open right forward access door assem­
bly R155 and transmission access door
assembly R210 (Ref. Section 06-00-00).
(2). Remove cabin compartment interior
roof panels (Ref. Section 25-20-00).
(3). Inspect air scoop for cracks. Repair or
replace as required.
(4). Inspect inlet air screen for cracked and
broken wire mesh. Inspect for obstruc­
tion, corrosion and security. Repair or
replace as required.
(5). Inspect inlet duct for cracks, deforma­
tion, and security. Repair or replace as
required.
(6). Inspect water separator for cleanness,
cracks, corrosion and security. Inspect
welds at mounting brackets for cracks.
Repair or replace as required.
(7). Inspect water separator rubber drain
check valve for deterioration. Repair or
replace as required.
(8). Inspect fan assembly for cleanness.
(9). Inspect fan mounting brackets for
cracks. Repair or replace as required.
MD Helicopters, Inc.
Rotorcraft Maintenance Manual
VENT SYSTEM

MAINTENANCE PRACTICES

(10). Inspect electrical connector for corro­
sion. Verify fan for two-speed opera­
tion.
(11). Inspect air plenum duct assemblies for
cracks, tears, deterioration, deforma­
tion and security. Repair or replace as
required.
(12). Inspect distribution flexible ducts for
cuts, deterioration and collapsed nylon
coiled supports. Repair or replace as
required.
(13). Inspect door pillar plenum duct for
cracks. Repair or replace as required.
(14). Inspect crew compartment gasper
assemblies for cracks, cylindrical disc,
cap and ball socket for freedom of
operation. Repair or replace as re­
quired.
(15). Inspect cabin compartment gasper
assemblies for cracks, cylindrical disc,
cap and ball socket for freedom of
operation. Repair or replace as re­
quired.
(16). Install cabin compartment interior roof
panels (Ref. Section 25-20-00).
(17). Close right-hand forward access door
assembly R155 and transmission access
door assembly R210 (Ref. Section
06-00-00).
21-20-00
CSP−900RMM−2
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