MD Helicopters 369-500, Maintenance Instructions Manual

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CSP-HMI-3
MD Helicopters, Inc
.
MAINTENANCE MANUAL
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The information disclosed herein is proprietary to MD Helicopters, Inc.
Neither this document nor any part hereof may be reproduced or transferred to
other documents or used or disclosed to others for manufacturing or any other
purpose except as specifically authorized in writing by MD Helicopters, Inc.
Copyright
©
1999 − 2016 by MD Helicopters, Inc.
ELECTRICAL POWER
INSPECTION/CHECK
1. Module Inspection
(Ref. Figure 601)
NOTE:
This procedure covers the inspection of
terminal blocks, terminal modules, ground
blocks, and electrical relays.
(1). Visually inspect module grommet
condition using following criteria:
(a). Module insert grommets shall be free
from cuts, cracks, and splits from
contact cavity to grommet outside
edge, or from cavity to cavity.
(b). Minor scuffs, scrapes, cuts, and
gouges in the grommet that do not
degrade wire sealing or functionality
of module are acceptable.
(2). Replace module if grommet condition is
not acceptable (Ref. Installation and
Removal of Electrical Components)..
(3). Inspect module for contamination by
fluids and dirt particles.
(a). If contamination is found, decontami­
nate module (Ref. Cleaning and
Protection Practices).
G96-0032
1
2
1
UNACCEPTABLE CONDITIONS:
1. SPLIT OR CUT FROM CONTACT CAVITY
TO GROMMET EDGE.
2. SPLIT OR CUT FROM CONTACT CAVITY
TO CONTACT CAVITY
2
Figure 601. Grommet Damage Criteria
2. Connector and Accessories Inspection
(Ref. Figure 602)
NOTE:
This procedure covers the inspection of
plugs, receptacles, backshells, and any asso­
ciated connector accessory.
(1). Visually inspect connector and accesso­
ry condition using following criteria:
(a). Minor scratches and abrasions to
surfaces, keys and keyways, includ­
ing exposure of metal under dark
green coatings shall be considered
normal wear and are acceptable.
(b). Surfaces shall be free of scratches,
abrasions, gouges, dents, or other
conditions which deface markings,
create burrs or rough edges in base
material, mutilate keys and key­
ways, or interfere with proper
mechanical function.
(c). Connectors with an EMI spring that
has broken or missing fingers/seg­
ments shall be rejected. Bent or
displaced fingers are acceptable
provided connector can be fully
mated and unmated to counterpart
without causing further damage.
(2). Replace component if condition is not
acceptable (Ref. Electrical Connector
Maintenance Procedures).
(3). Inspect connector for contamination by
fluids and dirt particles.
(a). If contamination is found, decontami­
nate connector (Ref. Cleaning and
Protection Practices).
(4). Visually inspect connector grommet
condition.
(a). Replace connector if grommet condi­
tion is not acceptable.