Description
Service Manual
for the
S-Tec Avionics
Flight Line For Rate Based Autopilots
P/N 87102
has 127 pages
Cover years; 2001 – 2003
1.1 Service Manual Organization
Overview Section 1
Roll Centering Section 2
Functional Ground Tests Section 3
Simulator Operation Section 4
Pilot’s Operating Handbooks Section 5
Heading Interconnect Drawings Section 6
System Interconnect Drawings Section 7
System Specifications Section 8
Glossary Section 9
1.2 Purpose
This manual provides flight line service information for the following S-TEC MEGGITT rate based autopilots:
System 20/30/30 ALT
System 40/50
System 55/55X/550
System 60-1/60-2
System 65
System 60 PSS
1.3 Required Test Equipment
Nomenclature P/N
Flight Line Autopilot Tester 95101
Breakout Box 9524
Adapter Cable 39198
Adapter Cable 39199
Extender Assembly 01264
1.4 Service Philosophy
The first objective is to determine if the installed autopilot system is functioning properly on the ground. This is
accomplished by performing the functional ground test for that particular system. No external test equipment is
required.
The second objective is to isolate a failure to a system component. The equipment listed in section 1.3 is designed
to aid in this effort. The Flight Line Autopilot Tester (P/N 95101) is used to simulate some of the major system
components. It is shown in Fig. 1-1 and contains the following, each removable from a suitcase for remote use about
the aircraft:
Nomenclature P/N
Tool, Roll Centering Adjustment 95101-1
Simulator, Heading System * 95101-2
Simulator, Servo, Roll/Pitch/Trim 95101-3
Simulator, Altitude Transducer 95101-4
Simulator, Turn Coordinator 95101-5
Cable Assembly, Extension for 95101-2 (6406/52D54) 39307
Cable Assembly, Extension for 95101-2 (6443) 39308
Cable Assembly, Extension for 95101-3 39309
Cable Assembly, Extension for 95101-4 39310
Cable Assembly, Extension for 95101-5 39311
Service Manual, Flight Line 87104
* Simulates only the following Heading Systems:
Manufacturer Type P/N
S-TEC DG 6406
S-TEC HSI 6443
EDO AIRE DG 52D54
The Breakout Box (P/N 9524), Adapter Cables (P/N 39198 & 39199), and Extender Assembly (P/N 01264) are
used to measure autopilot system power, signals, and continuity. They are connected as shown in Fig. 1-2.
The third objective is to determine if the system is functioning properly in flight. This is accomplished by performing
the flight procedures contained in the respective Pilot’s Operating Handbook (POH). However, for return of aircraft to
service, refer to the Aircraft Flight Manual Supplement (AFMS).
