92-185 GPS-1270FW Antenna
A. Removal
1. Remove tailcone cowling per § 53-23.
2. Refer to Figure 92-1. Remove hardware securing GPS-1270FW antenna to F706-
1 cowling assembly and remove antenna. Discard o-ring.
B. Installation
1. Refer to Figure 92-1. Turn battery & news equipment switches off and pull out
MWAVE XMIT (5 amp) circuit breaker at panel.
2. Install new o-ring and install hardware securing GPS-1270FW antenna to F706-1
cowling assembly. Verify security.
3. Install tailcone cowling per § 53-23.
4. Push in MWAVE XMIT (5 amp) circuit breaker at panel. Turn battery & news
equipment switches on.
5. Perform appropriate post-installation function checks. Turn battery switch off.
C. Scheduled Inspections
Every 100-hour or annual inspection, inspect GPS-1270FW antenna for proper
installation (refer to R66 Illustrated Parts Catalog Chapter 92) & proper operation per
Part B steps 4 and 5.
D. Special Inspections
1. Refer to Figure 92-1. Turn battery & news equipment switches off. Open circuit
breaker panel.
2. As required, remove GPS-1270FW antenna per Part A. Inspect condition of
and verify no obvious damage to antenna, circuit breaker, and wiring. Verify no
loose, chafed, or broken wires or terminals. Verify no evidence of arcing. Verify
equipment security.
3. Secure circuit breaker panel. Install antenna per Part A if removed.
Page 92.32 Chapter 92 ENG Version JUL 2020
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