Honeywell BENDIX KING KMH 880 System Installation Manual page 32

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1.9.1 KMH 820/KTA 810 Unit
If the unit should require maintenance, remove the unit and have it repaired by an
appropriately rated Honeywell approved Instrument Service Center. If the aircraft
is to fly with the KMH 820/KTA 810 removed, secure the connector(s) as neces-
sary and placard the aircraft accordingly. After re-installation of the unit, accom-
plish the appropriate Post Installation Checkout in Section IV.
During each annual or 100 hour inspection of the aircraft, perform a Level 2 Self
Test of the KMH 820/KTA 810 as defined in the Post Installation Checkout in Sec-
tion IV.
1.9.2 Annunciators/Relays
If an annunciator bulb needs replacement, use a bulb with with the same type and
voltage rating as originally installed. If a relay malfunctions, replace it with an air-
worthy relay having the same part number. If a combination annunciator/relay unit
is used, e.g. MD41-1208/1308, remove the unit and have it repaired by a factory-
rated service center. If the aircraft is to fly with a relay or annunciator removed,
secure the connector(s) as necessary and placard the aircraft accordingly. After
re-installation of the unit, accomplish the appropriate Post Installation Checkout in
Section IV.
1.9.3 GPS Antenna
If the GPS Antenna should fail, replace it with an airworthy antenna having the
same part number. Verify good electrical bonding surfaces before installing the
antenna. Ensure that antenna radome is clean and not covered with paint. After
re-installation of the antenna, accomplish the appropriate Post Installation Check-
out in Section IV.
1.9.4 GPS Antenna Splitter
If the GPS Antenna Splitter should fail, replace it with an airworthy antenna splitter
having the same part number. The signal loss between the GPS Antenna and the
GPS Receiver cannot exceed 8 dB. After re-installation of the GPS Antenna Split-
ter, accomplish the appropriate Post Installation Checkout in Section IV.
1.9.5 Temperature Probe
If the KMH 820/KTA 810 Self Test indicates a failure of the temperature probe,
replace the temperature probe with an airworthy temperature probe having the
same part number. after installation of the temperature probe, accomplish the
appropriate Post Installation Checkout in Section IV.
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KMH 880/KTA 870
Rev 0, October/2000