MD Helicopters CSP-900RMM-2, Servicing And Maintenance

Page: 1670 / 2144

CSP − 900RMM − 2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 804
Revision 35
64-30-01
2. Modification
A. Upgrades for Fan Assembly
(Ref. Table 801 and Table 802)
NOTE:
Table 801 and Table 802 describe the
fan assembly components that must be
changed to upgrade early configuration fan
assemblies to later or current configura­
tions.
(1). Fan assembly part number
900R1441002-113 can be upgraded to
900R1441002-109 by replacement of
900R2441007-101 center spline and
900R2442012-105 fan blades with
900R2441016-101 center spline and
900R2442012-103 fan blades.
(2). Fan assembly part number
900R1441002-109 can be upgraded to
900R1441005-101 by replacement of
900R2441013-107 fan hub with a
900R2441013-105 fan hub.
(3). Fan assembly part number
900R1441005-101 can be upgraded to
900R1441005-103 by replacement of
500N5311-5 tension-torsion straps
with 900R3442009-101 tension-torsion
straps.
(4). Fan assembly part number
900R1441005-103 can be upgraded to
900R1441005-105 by replacement of
900R2441013-105 fan hub with a
900R2441013-109 fan hub and addi­
tion of 900R2441017-101 sleeves.
Table 801. Conversions for Fan Assembly Configurations
Configuration From To
Modification Required
(Ref. Item No., Table 802)
900R1441002 − 113 900R1441002 − 109 1
900R1441002 − 109 900R1441005 − 101 2
900R1441005 − 101 900R1441005 − 103 3
900R1441005 − 103 900R1441005 − 105 4
NOTE:
Configuration upgrades are not mandatory.
Table 802. Criteria for Fan Assembly Modifications
Item
No.
Quantity Parts to be Removed Parts to be Installed
1 1 900R2441007 − 101 Center Spline
900R2442012 − 105 Fan Blade
900R2441016 − 101 Center Spline
900R2442012 − 103 Fan Blade
2 1 900R2441013 − 107 Fan Hub 900R2441013 − 105 Fan Hub
3 13 500N5311 − 5 Tension − Torsion Strap 900R3442009 − 101 Tension − Torsion Strap
4 1 900R2441013 − 105 Fan Hub 900R2441013 − 109 Fan Hub and add
900R2441017 − 101 Sleeves
900R2441007 − 101 or
900R2441016 − 101 Center Spline
900R3442009 − 101 (Set of 13) or
900R3442009 − 103 (Set of 13) Tension −
Torsion Straps
NOTE:
PN 900R3442009 − 103 and 900R6442009 − 103 tension − torsion straps are two − way interchangeable with
each other and can be used in combination with each other.