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EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 194-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
Component Maintenance Manual
The following is information on the periodic maintenance, calibration and repair, for the continued
airworthiness of the Electronic Map Displays, including recommended inspection intervals and service
life:
Periodic Maintenance: None beyond that which is described in the Instructions for Continued
Airworthiness.
Calibration: None beyond that which is described in the Instructions for Continued Airworthiness.
Repair: On Condition
Recommended Inspection Intervals: None beyond that which is described Aspen Avionics document
#900-00012-001, Instructions for Continued Airworthiness.
Service Life: None Specified
Field Replaceable Parts
Description
Aspen Part Number
EFD Internal Battery – white connector
409-00003-002
EFD “SYNC” knobs (CRS/HDG knob)
520-00020-001
EFD Knob Replacement Procedure
The knob(s) are removed by gripping the knob with the fingers of your hand and then pulling straight
off the shaft using moderate force. Install the new knob P/N 520-00020-001 by pushing the knob on
to the shaft with the fingers of your hand until it bottoms out. After knob replacement, power-up the
system and verify the knob can turn freely and that the “push to enter” function operates properly by
accessing the HDG bug or CRS pointer function.
EFD Internal Battery Replacement Procedure
See the Instructions for Continued Airworthiness.