PROCEDURE TROUBLESHOOTING REFERENCE

TM 55-1510-218-MTF

TROUBLESHOOTING

PROCEDURE

REFERENCE

Flight management system (KNS-

*2.

660) flight test - Perform as fol-

lows:

A triangular test flight shall be performed. Satisfacto-

ry performance shall be demonstrated by flying over

three checkpoints whose latitude and longitude are

known, and comparing them with the flight manage-

ment system coordinate readouts. The aircraft shall

establish a low altitude, compatible with aircraft safe

ty and applicable Laws and Codes of Flight which will

allow accurate sighting of ground landmarks. An alti-

tude of 1000 feet is recommended whenever possible.

a. Flight management system -

Set up and operate in accor-

dance with TM 55-1510-218-

10.

b. Insert the coordinates of two

distant ground checkpoints

and point of departure. Dis-

tances between ground check-

points should be far enough

apart to provide a 1 hour tri-

angular closed course.

c. Fly the triangular course and

monitor the navigation instru-

ments for proper operation.

d. Check the operation of the

system in the RNAV ENR-

mode, and verify the opera-

tion of each sensor (BLEND,

VLF/

TACAN,

VOR,

OMEGA, and GPS) as appro-

priate.

e. Using the RNAV APP mode

perform an RNAV approach.

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