MD Helicopters 369-500, Maintenance Instructions Manual

Page: 591 / 722

CSP-HMI-3
MD Helicopters, Inc
.
MAINTENANCE MANUAL
[ Main Menu ]
[ HMI − 3 Book TOC ]
[ Chapter 96 TOC ]
96-48-00
Page 901
Revision 11
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.
FLOAT LAMP
INITIAL INSTALLATION
1. Float Lamp Initial Installation
This section provides detailed instructions for
installing the 369D292032 float lamp assem­
bly. This modification may be performed at the
discretion of the operator, or the helicopter
may be returned to the factory for modifica­
tion.
A. Reference Data
The consumable and expendable materials
listed are of a commercial nature that could be
procurable locally. Contact MDHI Customer
Service Department for alternate equivalent
materials that may be used.
B. Doubler Installation
(Ref. Figure 901)
Consumable Materials
(Ref. Section 91 − 00 − 00)
Item Nomenclature
CM220 Naphtha aliphatic
CM305 Lacquer, acrylic
CM405 Adhesive
CM814 Dykem, red or blue
CM819 Kimwipe
NOTE:
Doublers must be installed against the
inner side of the fuselage materials skin in
the engine bay lower section as shown. It
will be necessary to remove the 369H6006
landing gear brace assemblies (Ref. Sec.
32-00-00).
(1). Remove 12 MS20470AD3 rivets as
shown. Use #42 drill bit to remove 3/32
inch rivets.
(2). Remove two MS20615M3 rivets with
#42 drill bit.
(3). Remove two MS20615M4 rivets. Use
#31 drill bit to remove 1/8 inch rivets.
(4). Deburr holes as required.
(5). Using kimwipe (CM819) and naphtha
(CM220), clean aircraft structure of all
sealant and other foreign materials in
area to be in contact with doublers.
(6). Set left doubler so edge of extension on
long side is at Sta. 136.94, 0.560 inch
(14.224 mm), from back surface of
369H2532 ring assembly), and the
inward side is 0.20 inch (5.08 mm) from
buttline 0.00 (Ref. Figure 902).
(7). Drill two 0.062 inch (1.5748 mm) holes
in skin through two remotely located,
existing pilot holes in doubler. Use 1/16
inch drill bit.
(8). Install two Cleco fasteners, then
recheck accuracy of doubler placement.
(9). When doubler is properly situated,
enlarge three pilot holes with #41 drill
bit.
(10). Relocate two Cleco fasteners and
enlarge remaining two pilot holes with
#41 drill bit.
(11). Set right doubler so edge of extension
on long side is at Sta. 136.94, 0.560
inch (14.224 mm) from back surface of
369H2532 ring assembly), and the
inward side is 0.20 inch (5.08 mm) from
buttline 0.00.
(12). Drill two 0.062 inch (1.5748 mm) holes
in skin through two remotely located,
existing pilot holes in doubler. Use 1/16
inch drill bit.
(13). Install two Cleco fasteners, then
recheck accuracy of doubler placement.
(14). When doubler is properly situated,
enlarge three pilot holes to 0.096 inch
with #41 drill bit.
(15). Relocate two Cleco fasteners and
enlarge remaining two pilot holes with
#41 drill bit.