all previous editions of Doc , Volume I. Doc OPS/ Procedures for. Air Navigation Services. International Civil Aviation Organization. Volume I. PANS-OPS (Doc ): It is one of three documents issued by ICAO to provide additional recommendations of aspects of aircraft operations. specified in this document should be notified and take effect in accordance Aircraft Operations (PANS-OPS, Doc ), Volume I,. Part VIII.

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Aerodrome operating minima AOM are calculated by operators based on information supplied by national authorities in their AIPs.

From May 2,the FAA started publishing new instrument approach plates that include an enlarged segment of airspace to protect aircraft during circling approaches. These values are calculated differently and therefore, may result in different AOM. Jeppesen Chart Basics – a presentation.

National authorities or operators may require adjustments to be applied to operating minima to compensate for these differences. The new airspace also offers pilots additional obstacle clearance while considering their MSL altitude above the MDA, which affects true airspeed. Under the new criteria that radius will increase by 65 percent, to 2.



As a result, circling minima at certain airports may increase significantly. B, vicinity Busan Korea, The boundaries of protected airspace for circling approaches are defined by arcs drawn from the threshold of each runway at an airport.

Both systems assume a 25 kt Additionally, pilots not aware of the dic bank angle expected in US TERPS calculations might, in certain circumstances, stray outside the circling area due to the increased circling radius.

Charts without the new designation will continue to be guided by the old, smaller-radii criteria.

The Airline Pilots Forum and Resource

It is therefore essential that pilots understand these differences and are aware of the basis of calculations for all airfields at which they intend to operate, including alternates. These distances, dependent on aircraft category, are also based on the circling altitude which accounts for the true airspeed increase with altitude.

The higher the speed of the aircraft, the larger the arc.

The basis for calculation of minima is usually printed on the approach plate see Further Reading: The circling approach area has been expanded to provide improved obstacle protection.


Retrieved from ” https: Terminal Procedures and Jeppesen both plan to use new chart symbology to identify the updated approaches. This is especially true in respect of Circling Approaches where the assumed radius of turn and minimum obstacle clearance are markedly different see below.

The procedures themselves are based on obstacle clearance domains constructed using internationally accepted standards.

The latter is shown on Table This is believed to have been a major factor in the following fatal accident, which resulted in considerable loss of life: If you wish to contribute or participate in the discussions about articles you are invited to join SKYbrary as a registered user. Table 1 shows the lowest value of visibility assumed by each method:. This information typically consists of approach and departure procedures which assure safe separation between the aircraft and known obstacles located close to the intended flight path of the procedure in question.

For details refer to the relevant documents listed below.