686 - INSTRUMENT MECHANIC, AIRCRAFT
[INSTRUM MECH, AIR]
Inspects, tests, maintains, and repairs electrical and mechanical aircraft navigation and engine instruments.
Checks accuracy of zero settings and condition of dials, pointers, and mountings. May calibrate deviation charts. Must be familiar with the construction and principles of operation of various types of pressure, vacuum, electric, spring, and hydraulic gauges. Note—See also SSN's 381, 682, and 961.