Garmin GFC 600 User Manual

GFC 600 AFCS Part 23 AML STC Maintenance Manual Page 16
190-01938-00 Revision 13
4.3 Maintenance Intervals
Table 4-1 shows systems and items, installed by this STC, which must undergo tests or checks
at specific intervals. If the interval is shown to be in flight time as well as calendar months, the
first interval reached should be used as the limit.
Those inspections that are based on flight time or calendar elapsed time or cycles shall have
specific intervals stated in Table 4-1.
Those inspections that are listed as special do not align with annual or phase inspections.
Table 4-1 – Maintenance Intervals
Item
Description/Procedure
Manual
Section
No.
Interval
Equipment electrical Bonding
Test
Verify bonding of GMC 605 rack, GI 285 rack
(if installed), GSA 87, GSA 80/81, and GSM
86 mounting brackets, GTA 82, and any
associated bonding components
4.5
Following removal
and replacement of
the racks or brackets
AND
Every 2000 flight
hours or ten years,
whichever is first
Equipment Bonding Visual
Inspection – suspected
lightning strike
Inspection of bonding Components
Table 4-3
At any suspected or
actual lightning
strike
GFC 600 Equipment Visual
Inspection
Visual inspection of GFC 600 components
4.4
At every annual
inspection
Sonalert Disconnect Tone
Check (if installed)
Functional test of Sonalert
4.6
At every annual
inspection
GSA 87 Servos
Removal and Replacement
6.3
On Condition
GMC 605 Autopilot Computer
Removal and Replacement
6.1
On Condition
Air Data Module
Removal and Replacement
6.5
On Condition
GI 285 Autopilot Annunciator
Removal and Replacement
6.2
On Condition
GTA 82 Trim Adapter
Removal and Replacement
6.3.1
On Condition
Servos, Servo Control
Cables/Chains and
associated hardware
Visual Inspection
Table 4-2
With aircraft
manufacturer’s
required primary
control cable checks
GSA 80/81 Servos (all)
Removal and Replacement
6.7
On Condition
GSM 86 Servo Gear Box (all)
Removal and Replacement
6.8
On Condition
GSM 86 Servo Gear Box
Slip Clutch Torque Check *
For installations with the GSM 86 servo gear
box, verify that the pitch, roll, yaw and pitch
trim GSM 86 slip clutch torque values are
within acceptable limits
4.7
Special
3000 Hours Max
GSM 86 Servo Gear Box
Clutch Disengagement
Check *
For installations with the GSM 86 servo gear
box, verify that the pitch, roll, yaw and pitch
trim GSM 86 clutch disengages
4.8
Special
20,000 Hours Max
GSA 87 Yaw Trim Servo AP
DISC/TRIM INT Switch
Check *
For installations with a GSA 87 yaw trim
servo, verify that the yaw trim servo
disengages when the AP DISC/TRIM INT
Switch is pressed
4.9
Every 400 Hours or
annual inspection,
whichever is first
* Denotes Airworthiness Limitation Maintenance Requirement (See Section 4.1)

Garmin GFC 600 Specifications

General

System Type	Digital Autopilot System
Control Wheel Steering (CWS)	Yes
Yaw Damper	Optional
Automatic Trim	Yes
Vertical Navigation (VNAV)	Yes
Level Change (LVL) Mode	Yes
Flight Director	Yes
Safety Features	Overspeed Protection (OSP)
Interface	Interfaces with Garmin navigators and displays
Aircraft Type	Certified aircraft
Control Modes	Includes heading hold, altitude hold, vertical speed, and navigation tracking
Integration	Seamless integration with Garmin avionics
Approval	Certified