CAAN decides not to allow flights until weather is clear

May 31, 2022

The Civil Aviation Authority of Nepal (CAAN) has decided not to allow domestic flights unless the weather is clear. The authority has taken this decision after the recent Tara Aircraft crash.

CAAN has now decided not to allow the flight even if the en-route weather is not clear. Earlier, CAAN used to allow flights if the weather at arrival and departure airports were clear.

According to CAAN spokesperson Karna, such a decision would only apply to aircraft flying from VFR (Visual Flight Rules) and not to aircraft flying from IFR (Instrument Flight Rules) method does not apply to aircraft and airports.

What is VFR?

Visual Flight Rules (VFR) are the rules that govern the operation of aircraft in Visual Meteorological Conditions (VMC) (conditions in which flight solely by visual reference is possible). Because of the limited communication and/or navigation equipment required for VFR flight, a VFR aircraft may be subject to limitations if and when it is permitted in controlled airspace. Any conditions are detailed in national Aeronautical Information Publications (AIPs).
What is IFR?
Instrument Flight Rules (IFR) are rules which allow properly equipped aircraft to be flown under instrument meteorological conditions (IMC).

JAR-OPS 1.652 and associated guidance material specifies the flight and navigational instruments and associated equipment required for IFR or night operations. This may be supplemented by requirements contained in national Aeronautical Information Publications (AIPs). Minimum equipment lists (MELs) detail the conditions under which IFR flight may be commenced or continued when elements of aircraft equipment are unserviceable.

JAR-OPS 1.960 details qualification requirements for pilots to carry out IFR flights.

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