3710.17F - CNATRA

COMTRAWINGSIXINST 3710.17F
22 Nov 11
GPS SETUP PROCEDURES
–Intending to execute GPS as primary Navaid (approach, SID,
STAR)
Preflight:
• GPS NOTAMS (Dest/Alt) GPS NOTAMS - “KGPS” in DINS
Ground Procedures:
• Database Currency: SET pg 0
• Predicted Destination RAIM availability status
1. STA 5
2. Enter airfield identifier (destination/drop-in)
3. Enter ETA to airfield
4. Press ENT. RAIM calculation will start.
5. RAIM calculation results will be displayed in bar format
for the selected identifier and ETA (± 15 minutes).
a. Bars above the line indicate RAIM is available.
b. Bars below the line indicate RAIM is not available.
Note: If RAIM check indicates that appropriate reliability for
the planned destination may not be available, either develop an
alternate (non-GPS reliant) plan for landing at the intended
destination or proceed to an alternate airfield. To check RAIM
airborne, select STA 5 page. Destination and ETA should be
automatically updated based on the active flight plan.
SID:
1. Select SID from appropriate APT page.
2. Use left knobs to reduce CDI scale to ± 1.00 on MODE page.
Enroute/Descent (as appropriate):
1. On STA 2 page, check estimated position error, RAIM and FDE
status. RAIM and FDE should both indicate YES – if not,
develop an alternate (non-GPS reliant) plan for landing.
2. Check predicted RAIM availability status on STA 5 page.
STAR:
1. Select STAR from appropriate APT page.
2. Use left knobs to set CDI scale at ± 1.00 on MODE page.
RAIM – Receiver Autonomous Integrity Monitoring
FDE – Fault Detection and Exclusion
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Enclosure (3)