UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
ENSTROM F-28F/280F SERIES MAINTENANCE MANUAL SUPPLEMENT 1
Rev.
5
9-1
Apr
15/15
CHAPTER 9
DUAL START COLLECTIVE CONTROL INSTALLATION
SECTION 1
SYSTEM DESCRIPTION
1-1. System
Description
A. The collective control with dual start installation option is part number 28-16080-101.
B. The
dual start feature allows the rotorcraft to be started from either the pilot or copilot
positions. This is achieved with a momentary switch in the starboard-side collective stick.
The switch is connected in parallel to the standard starting switch located in the port-side
collective stick. The switch, when activated, closes the starter relay which then engages
the starter motor.
C. When configured with the dual start collective control installation, the starboard-side
collective stick is not equipped with a quick disconnect feature. Installation of both port-
and starboard-side collective sticks is identical.
D. Refer to the applicable F-28F or 280FX Rotorcraft Flight Manual for limitations and basic
operation instructions.
SECTION 2
AIRWORTHINESS LIMITATIONS
2-1. Airworthiness
Limitations
A. The Airworthiness Limitations Section is FAA approved and specifies inspections and
other maintenance required under 14 CFR §§ 43.16 and 91.403 of the Federal Aviation
Regulations unless an alternative program has been FAA approved.
B. All components of the collective control with dual start installation are “on condition.”
SECTION 3
SERVICING, TROUBLESHOOTING, AND PERIODIC INSPECTIONS
3-1.
Servicing, Troubleshooting, and Periodic Inspections
A. Refer to the F-28F/280F Series Maintenance Manual for servicing, troubleshooting, and
periodic inspection procedures for the flight controls and electrical systems.
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