49
Cross Country Emergency Procedures
Weather Deviations Thunderstorms
Note
As per POH Supplement 23, the WX-500 Stormscope is approved for use only in avoiding hazardous
weather (thunderstorms); use of the WX-500 to penetrate hazardous weather is prohibited.
1. Stormscope…CONFIRM ON
Note
A yellow lightning bolt on a light blue background signifies that Stormscope data is being displayed.
Note
A black lightning bolt on a grey background indicates that Stormscope data is not being displayed.
Note
A black lightning bolt on a grey background with a red slash and circle (international “NO” symbol)
indicates that there is a problem with the WX-500 unit.
2. Stormscope…ADJUST AND CHECK AS REQUIRED
Note
Utilize stormscope information to assist with determining areas of thunderstorms to be deviated around.
If deviation is required:
ATC…ADVISE IF REQUIRED
Deviation…COMPLETE
Track Correction…COMPLETE
Fuel…CHECK
Note
It is recommended to determine fuel utilized prior to the deviation and fuel utilized during the deviation
and reassess the current fuel situation and compare it against the flight plan requirements.
If diversion is required:
Diversion Destination…DETERMINE
Direction…DETERMINE
Diversion to Alternate Aerodrome…INITIATE
Distance…CALCULATE
Time to Alternate…CALCULATE
Altitude…ADJUST
Note
A safe altitude should be selected giving consideration to all important factors including but not limited
to weather, obstacle/terrain clearance, and traffic.
Fuel…CALCULATE