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C I R R U S S E R V I C E B U L L E T I N MOD E L S R 2 X S E R I E S
SB 2X-27-16
Cirrus Design SR20 Serials 1005 thru 2029. Page 2
Cirrus Design SR22 Serials 0002 thru 3459.
EFFECTIVITY:
October 02, 2009
10. MATERIAL INFORMATION
The following parts are required to comply with this Service Bulletin. Parts can be obtained from an Authorized
Cirrus Design Service Center or Parts Distributor.
Order Kit 70231-001 to obtain the following parts:
11. ACCOMPLISHMENT INSTRUCTIONS
A. Acquire necessary tools, equipment, and supplies.
B. Verify the flaps are in the UP position.
C. Remove key from ignition.
D. Pull FLAPS circuit breaker.
E. Remove passenger seats. (Refer to AMM 25-10)
F. Remove carpet. (Refer to AMM 25-10)
G. Remove access panels CF4C and CF5. (Refer to AMM 06-00)
H. Modify flap actuator. (See Figure 01)
CAUTION: To prevent damage to flap hinges and flaps, tape flaps to wing prior to disconnecting
actuator.
(1) Remove cotter pin, nut, washers, and bolt securing flap actuator to torque tube coupler. Discard
nut and cotter pin and retain washers and bolt.
(2) Loosen jam nut securing rod end to flap actuator end fitting.
(3) Remove rod end fitting and remove jam nut. Discard rod end fitting and retain jam nut.
(4) Loosen jam nut securing flap actuator end fitting to flap actuator. Remove and discard end fitting.
(5) Back jam nut to bottom of flap actuator and install new end fitting (item 1) on actuator.
(6) Bottom out end fitting on actuator to ensure maximum thread engagement. Tighten jam nut.
(7) Bottom out existing jam nut onto new rod end (item 2).
Item No. Description P/N or Spec. Supplier Quantity
1 End Fitting 11185-004 Cirrus Design 1
2 Rod End, Male, RH 11315-005 Cirrus Design 1
3 Collar, Shaft 27425-001 Cirrus Design 1
4 Screw, Socket Head MS21262-37 Cirrus Design 2
5 Nut, Castellated MS17825-4 Cirrus Design 1
6 Cotter Pin MS24665-132 Cirrus Design 1
Description P/N or Spec. Supplier Purpose
WS 40 Wing Template 13057-101/-102 Cirrus Design Flap rigging.
WS 132 Wing Template 13057-107/-108 Cirrus Design Flap rigging.
Inclinometer PRO360 Macklanburg Duncan
Oklahoma City, OK
73125
Deflection angle
determination.
C I R R U S S E R V I C E B U L L E T I N MOD E L S R 2 X S E R I E S
SB 2X-27-16
Cirrus Design SR20 Serials 1005 thru 2029. Page 3
Cirrus Design SR22 Serials 0002 thru 3459.
EFFECTIVITY:
October 02, 2009
(8) Install rod end into actuator end fitting and bottom out. Leave jam nut loose at this time.
(9) Cut cable ties securing proximity sensor wiring to flap actuator.
(10) To facilitate flap rigging, position proximity sensors on flap actuator as follows:
(a) Position 0% sensor in approximate location. (See Figure 01)
(b) Position 50% sensor 1.0 inch (2.5 cm) from 0% sensor.
(c) Position 100% sensor 1.0 inch (2.5 cm) from 50% sensor.
(11) Reset FLAPS circuit breaker.
(12) Rotate FLAPS switch to UP position.
CAUTION: Ensure actuator is clear of obstructions within its range of travel.
(13) Set MASTER SWITCH to ON position.
(14) Once actuator has stopped moving, set MASTER SWITCH to OFF position.
Note: Stack-up order may be altered to allow for better alignment between flap actuator
and torque tube coupler.
(15) Install existing bolt and washers connecting rod end to torque tube coupler and secure with new
nut (item 5). Do not install cotter pin at this time.
(16) Remove tape securing flaps to wing.
Note: During Adjustment/Test - Flap Travel, it is not necessary to adjust flap actuator end fitting
so that flap actuator and rod end connected to torque tube coupler are installed to a
depth between end fitting inspection holes. No inspection holes are drilled in new end fitting.
Additionally, when in the 0% position, a minimum 0.05 inch (1.27 mm) clearance
must be maintained between end fitting and torque tube coupler.
When adjusting position proximity sensors, it may be necessary to lengthen actuator to
achieve full 0% position. Accomplish by backing out rod end, but do not exceed 2 turns
maximum.
I. Perform Adjustment/Test - Flap Travel. (Refer to AMM 27-50)
J. Tighten jam nut securing rod end to actuator end fitting.
K. Torque bolt securing rod end to torque tube coupler and install new cotter pin (item 6).
L. Install cable ties securing proximity switch wiring to flap actuator.
M. Set MASTER SWITCH to ON position.
N. Reset FLAPS circuit breaker.
O. Rotate FLAPS switch to 100% position.
P. Position collar (item 3) onto shaft of actuator leaving 0.05 ±0.01 inch (1.27 ±0.25 mm) clearance
between face of collar and actuator seal.
　
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