COMPONENT MAINTENANCE MANUAL
15-0705
Table INTRO-2. MTOSS Function Code Definitions (Cont)
Code
Function
Definition
800
MISCELLANEOUS
810
Fault Isolation
Operation of an engine at constant thrust level
or identical Engine Pressure Ratio (EPR) to
locate the prime suspect deficient system:
operating an improperly functioning system or
component to locate the cause; or performing
a series of checks to isolate a failed part or
component.
820
Adjusting/Aligning/Calibrating
Making a physical correction to ensure
proper placement or operation of a system or
component.
830
Rigging
Hooking-up, arranging, or adjusting a
component or accessory linkage for proper
operation.
840
Service Bulletin Incorporation
Performing the work specified in the
service bulletin. Provides for identification
of modification tasks at the task level with
subtasks recognizing any functional changes
(chemical, visual/dimensional, cleaning,
machining, etc.) necessary to incorporate the
service bulletin.
850
Part Number Change/Re-identification
Change of part number, application of part
number by transfer, engrave repair number, etc.
860
Unassigned
870
Description and Operation
Electrical and mechanical description of the
unit or component. Includes leading particulars,
descriptions, limitations, specifications, and
theory of operation.
878
Schematic and Wiring Diagrams
Schematic diagrams, wiring diagrams,
interconnect diagrams and wire lists.
880
Approved Vendor Processes
Includes processes that may be proprietary
and controlled by a particular manufacturer, or
by nonproprietary and approved for application
by conforming vendors.
890
Airline Maintenance Program (Customer Use)
900
Unassigned
910
Special Equipment Maintenance
Identification of tasks to maintain special
support equipment.
EFFECTIVITY
ALL
33-30-15
Page INTRO-13
30 Mar 2017
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