Garmin SA01933LA_D Manual de instrucciones descargar pdf (Pagina 13)

Instructions for Continued Airworthiness G600, GNS 530W, GNS 430W, 190-01080-05 Rev. 2

GMA 347, GTX 330D, GMX 200, WSI AV-200 Cessna 208/208B Page 13 of 29

• SDA value of 2 (≤ 1x10-5)

• SIL value of 3 (≤ 1 x10-7)

• NACp value of 8 or greater

• NIC value of 7 or greater

9. Reset the XPDR 1 squat switch configuration as follows:

a. Start XPDR 1 in configuration mode (hold the OFF key to power down the unit, then hold

the FUNC key and press the ON key).

b. Press the FUNC key until the “SQUAT SWITCH?” page is displayed. Then use the

CRSR and 8/9 keys to change the setting to “NO.” Press the CRSR key until no fields

are highlighted to save the changes.

10. Restart XPDR 1 in normal operating mode and select ALT mode.

11. Using the transponder test set, verify XPDR 1 is in the “on ground” state. This may be

accomplished by one of the following methods:

a. Verifying the length or width ADS-B Out parameter is being transmitted, or

b. Verifying the Mode S air/ground status is “on ground.”

12. Select XPDR 2 using the transponder selector switch.

13. Apply power to the GNS 430W by resetting the NAV 2 circuit breaker. Remove power from the

GNS 530W by pulling the NAV 1 circuit breaker. Ensure the GNS 430W is operating normally

and has acquired a GPS position.

14. Repeat steps 6 though 11 on XPDR 2. Note: references to XPDR 1 in these steps now refer to

XPDR 2.

15. The test is complete. Reset the NAV 1 circuit breaker and select STBY mode on the transponder

2.5.3 GTX 330D Installation Visual Inspection

Conduct a visual inspection of the GTX 330D installation in the following locations:

1. Inspect all GTX 330D knobs and buttons for legibility of labels and markings.

2. Inspect GTX 330D units for security of attachment.

3. Inspect mounting rack and hardware for integrity.

a. Verify the racks, fasteners, and support structure are in good condition and are securely

fastened.

4. Inspect the condition of the wiring harnesses and coaxial cables.

a. Verify that all wiring and cables are securely fastened.

b. Verify that the harness shows no signs of cracking, chaffing, abrasion, melting, or any

other form of damage.

5. Cargo Pod Interior: Inspect both lower transponder antenna locations (remove Isocryl tape

sealant from antenna stud holes in cargo pod):

a. Verify the antenna and ground plane fasteners are secure.

b. Verify no moisture or corrosion is present.

c. Verify no visible delaminating of composite structure exists.

d. Replace flexible Isocryl tape sealant into all antenna stud holes in accordance with the

Antenna Installation drawing, 005-00521-11.

6. Fuselage Top: Inspect the exterior top transponder antenna installations (Diversity Systems only)

a. Verify the antennas are securely fastened.

b. Verify the sealant around each antenna base is in good condition.

c. Verify there is no evidence of cracking or corrosion at the installation site.

7. Cargo Pod Exterior: Inspect the bottom exterior transponder antenna installations:

a. Verify the antennas are securely fastened.

b. Verify the sealant around each antenna base is in good condition.

c. Verify the antenna ground plane is securely attached to the cargo pod structure and that

there are no signs of de-lamination or looseness.

d. Verify there is no evidence of cracking or corrosion at the installation site.

2.5.4 GTX 330D Installation Electrical Bonding Test

Perform an equipment electrical bonding check. All electrical bonding for this installation must be 5

milliohms DC resistance or less. If the resistance is higher than 5 milliohms, remove LRU, clean bonding

interfaces, reinstall, and re-measure until 2.5 milliohms or less is reached.

GTX330D Unit Racks and Connectors:

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 28 29

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Garmin SA01933LA_D Manual de instrucciones Pagina 13

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