Garmin GTN 6 series Anleitung Handbuch - Seite 8

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Garmin GTN 6 series Anleitung Handbuch
I
TEM
I
NTERVAL
5. V
I
ISUAL
NSPECTION
T
O BE PERFORMED IN
MD
ALIGNMENT WITH
369E/F/FF
MAINTENANCE SCHEDULE
E
100
VERY
FLIGHT
12
HOURS OR EVERY
,
MONTHS
WHICHEVER
.
OCCURS FIRST
6. E
B
LECTRICAL
ONDING
C
HTAWS
HECK OF
A
(
NNUNCIATORS
IF
)
INSTALLED
T
O BE PERFORMED IN
MD
ALIGNMENT WITH
369E/F/FF
MAINTENANCE SCHEDULE
E
10
VERY
YEARS OR
20
100
EVERY
TH
HOUR
,
INSPECTION
WHICHEVER
COMES FIRST
190-01007-KB Rev. 3
Instructions for Continued Airworthiness GTN 6XX/7XX - MD369E/F/FF
D
/P
ESCRIPTION
ROCEDURE
The GTN unit, GMA 35 (if installed), Flight Stream 510 (if installed),
switches, and wiring harnesses should be inspected to ensure continued
integrity of the installation in accordance MDHI Model Helicopters Models
369D/E/FF – 500/600N, Basic Handbook of Maintenance Instructions, CSP-
HMI-3 Instruments-Electrical-Avionics Section 97.
.
Visually inspect the following to ensure continued installation integrity:
1. Inspect the GTN unit(s) and GMA 35 for security of attachment,
including visual inspection of mounting racks and rotorcraft instrument
panel or avionics console supporting structure to which the racks attach.
Verify the countersunk fastener heads are in full contact with unit
mounting rack holes. Inspect the condition of the console and unit
install rack around the rivets. Repair damage as necessary in
accordance with Section 53−00−00 of CSP−SRM−6,
Manual, 369D/E/FF − 500/600N Helicopters
head is fully seated into the unit mounting rack fastener hole with no
slack. Verify the electrical bond using the procedure in item 4 above. If
installed, ensure the Flight Stream 510 is properly oriented (label facing
right), fully inserted, and locked into position in the card slot on the
front-left side of the GTN.
2. Inspect for signs of corrosion, and if corrosion is found, treat in
accordance with Section 20-40-00 of MDHI Model Helicopters Models
369D/E/FF – 500/600N, Basic Handbook of Maintenance Instructions,
CSP-HMI-2.
3. Inspect all switches, knobs, and buttons for damage. If knobs or
buttons are missing or damaged, return the unit to Garmin for repair.
4. Inspect placards and switch labels. Ensure that they are legible and
properly adhered. Replace any damaged labels as necessary.
5. Inspect condition of wiring, shield terminations, routing, and
attachment/clamping. Correct any issues identified by replacing
damaged wiring and re-attaching as necessary.
6. Check the fan intake slots on the sides and bottom of the GTN unit's
bezel for dust, dirt, or obstructions. Clean as needed.
Perform an electrical bonding check as follows:
1. Measure the resistance between the metallic body of each annunciator
and the instrument panel and verify that the resistance is less than or
equal to 20 milliohms.
2. In the event of bonding test failure,
(a) Clean the mating surfaces of both the annunciator mount and the
instrument panel per MD Helicopters Inc. CSP-HMI-2 Handbook of
.
Maintenance Instructions dated 31 October 1990, section 20-20-00.
(b) Verify that the resistance between the annunciators and the
instrument panel after prepping the bond surface is less than 10
milliohms.
Structural Repair
. Verify countersunk rivet
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