Honeywell MK VI - Manual (Page 129)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
Proprietary notice on title page applies
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-150 REV: SHEET 129
first of type installations, for these installations all sections of the Flight Test procedure shall be performed.
Precedence has been established for testing only the Terrain Awareness functions when replacing an existing
MK VI GPWS. Installers should contact their local FAA office for confirmation of this approach.
For follow on installations of the same aircraft type and interface, the flight test is not required. When updating
an STC to the current part number it is only necessary to flight test significant new features. The notice of
change is available in Honeywell Service Bulletins.
Suggestions for recording of the EGPWS data during a Flight Test for follow on analysis:
• In WinViews change the recording Sample Rate to 1 second intervals (WinViews / Terminal Mode / Options
/ Settings / 1000 ). This sample rate will record adequate data for future analysis.
• Continue recording between tests. Missing data is aggravating. Recording in flight between test sites
(hundreds of miles apart) is not necessary but continuous recording when Mode 1 ends and Mode 4 begins
is helpful. Recording of the take off from brakes locked through climb out also aids later analysis, as does
continuous recording of approach to aircraft off the runway.
• The WinViews software program records in 1.44 megabyte files that can be transferred from Laptop
computer to other computers with ease. Using 1 second sample rate the EGPWS will record approximately
40K bytes per minute of data. 1 hour of recorded time would be approximately 2.4MB, most laptops have
1GB or more free space.
• Use the Event Marker, F9 key, to identify events during tests.
• Use the F10 key to roll (increment) the history file name between test sequences. Rolling adds a number to
the end of the filename (or increments the existing number, if possible.) Example: use tail number (N3GC) in
the file name with a file number (01), this gives a filename N3GC01.hst which will roll to N3GC02.hst when
the F10 key is pressed.
5.2.7 Pilots Guid e
Honeywell has developed a Pilot’s Guide for the MK VI/MK VIII EGPWS, drawing number 060-4314-000 that
provides a description of the modes and the controls of the EGPWS.
5.2.8 Failure Mod es, Effects, and Safety Analysis
Honeywell has developed a Failure Modes, Effects, and Safety Analysis document for the MK VI/MK VIII
EGPWS, drawing number 060-4199-182 that provides an analysis of the failure modes of the EGPWS.