SIRS NAVIGATION LTD
COMPONENT MAINTENANCE MANUAL
INTRODUCTION
1. General
A. This manual is written to ATA iSpec 2000 and in AECMA Simplified English.
SI units of measurement are used with imperial units in parentheses.
B. The manual refers to physical and technical details of the compass and gives
necessary information to overhaul the compass units shown on the title page.
C. This manual refers to compasses manufactured to a ‘MOD.02’ specification.
‘MOD.02’ compasses were introduced in 1988 and no ‘MOD.01’ compasses have
been built since that date. All compasses overhauled by SIRS Navigation Ltd., are
modified to ‘MOD.02’.
D. Changes have been made to each page of the CMM and revision markers have
been excluded.
E. The manual does not refer to maintenance on the component when it is installed on
the aircraft. The compass is a sealed unit and must be repaired by the manufacturer
or an approved repair agent.
F. Only use trained employees for repair or maintenance of the compass.
G. This manual contains:
- Technical data for the component.
- Maintenance and repair procedures for the component.
- An Illustrated Parts List (IPL) . Parts are identified in all sections of the manual by
an IPL Figure and an item number.
H. The ‘Disassembly’, ‘Testing’, ‘Fault Isolation’ and ‘Assembly Procedures’ contained
in this manual have been written with reference to accepted working procedures.
I. SIRS Navigation Ltd. Purchased all rights to the compass products from ‘Smiths
Industries’ in 1994. Questions must be refered to SIRS Navigation Ltd.
INTRO 1
APR 10/03
34-25-21
The document reference is online, please check the correspondence between the online documentation and the printed version.
