SECTION 9
PA-28-181, ARCHER III SUPPLEMENT 19
ISSUED: JULY 12, 1995 REPORT: VB-1611
REVISED: JUNE 14, 2004 5 of 8, 9-107
SECTION 3 - EMERGENCY PROCEDURES
ABNORMAL PROCEDURES
A. If GARMIN GNS 530 navigation information is not available or invalid,
utilize remaining operational navigation equipment as required.
B. If “RAIM POSITION WARNING” message is displayed the system will
flag and no longer provide GPS based navigational guidance. The crew
should revert to the GNS 530 VOR/ILS receiver or an alternate means of
navigation other than the GNS 530’s GPS receiver.
C. If “RAIM IS NOT AVAILABLE” message is displayed in the enroute,
terminal, or initial approach phase of flight, continue to navigate using the
GPS equipment or revert to an alternate means of navigation other than the
GNS 530’s GPS receiver appropriate to the route and phase of flight. When
continuing to use GPS navigation, position must be verified every 15
minutes using the GNS 530’s VOR/ILS receiver or another IFR-approved
navigation system.
D. If “RAIM IS NOT AVAILABLE” message is displayed while on the final
approach segment, GPS based navigation will continue for up to 5 minutes
with approach CDI sensitivity (0.3 nautical mile). After 5 minutes the
system will flag and no longer provide course guidance with approach
sensitivity. Missed approach course guidance may still be available with 1
nautical mile CDI sensitivity by executing the missed approach.
E. In an in-flight emergency, depressing and holding the Comm transfer button
for 2 seconds will select the emergency frequency of 121.500 Mhz into the
“Active”frequency window.
SECTION 9
PA-28-181, ARCHER III SUPPLEMENT 19
ISSUED: JULY 12, 1995 REPORT: VB-1611
REVISED: JUNE 14, 2004 5 of 8, 9-107
SECTION 3 - EMERGENCY PROCEDURES
ABNORMAL PROCEDURES
A. If GARMIN GNS 530 navigation information is not available or invalid,
utilize remaining operational navigation equipment as required.
B. If “RAIM POSITION WARNING” message is displayed the system will
flag and no longer provide GPS based navigational guidance. The crew
should revert to the GNS 530 VOR/ILS receiver or an alternate means of
navigation other than the GNS 530’s GPS receiver.
C. If “RAIM IS NOT AVAILABLE” message is displayed in the enroute,
terminal, or initial approach phase of flight, continue to navigate using the
GPS equipment or revert to an alternate means of navigation other than the
GNS 530’s GPS receiver appropriate to the route and phase of flight. When
continuing to use GPS navigation, position must be verified every 15
minutes using the GNS 530’s VOR/ILS receiver or another IFR-approved
navigation system.
D. If “RAIM IS NOT AVAILABLE” message is displayed while on the final
approach segment, GPS based navigation will continue for up to 5 minutes
with approach CDI sensitivity (0.3 nautical mile). After 5 minutes the
system will flag and no longer provide course guidance with approach
sensitivity. Missed approach course guidance may still be available with 1
nautical mile CDI sensitivity by executing the missed approach.
E. In an in-flight emergency, depressing and holding the Comm transfer button
for 2 seconds will select the emergency frequency of 121.500 Mhz into the
“Active”frequency window.
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