37.65 Weather Avoidance

37.65.2 State the requirements for deviation off track for weather avoidance. AIP ENR

ENR 2.2 OTHER REGULATED AIRSPACE 

1 SPECIAL PROCEDURES FOR IN-FLIGHT CONTINGENCIES IN THE AUCKLAND OCEANIC FIR

1.4 Weather Deviation Procedures 

General

Note: The following procedures are intended for deviations around adverse meteorological conditions.

1.4.1 When weather deviation is required, the pilot should initiate communications with ATC via voice or CPDLC. A rapid response may be obtained by either:

• (a) stating “WEATHER DEVIATION REQUIRED” to indicate that priority is desired on the frequency and for ATC response; or
• (b) requesting a weather deviation using a CPDLC lateral downlink message.

1.4.2 When necessary, the pilot should initiate the communications using the urgency call “PAN PAN” (preferably spoken three times) or by using a CPDCL urgency downlink message.

1.4.3 The pilot shall inform ATC when weather deviation is no longer required, or when a weather deviation has been completed and the aircraft has returned to its cleared route.

ACTIONS TO BE TAKEN WHEN CONTROLLER–PILOT COMMUNICATIONS ARE ESTABLISHED 

1.4.4 The pilot should notify ATC and request clearance to deviate from track or ATS route, advising, when possible, the extent of the deviation requested. The flight crew will use whatever means are appropriate (i.e. voice and/or CPDLC) to communicate during a weather deviation.