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.


Terminal Procedures and Jeppesen both plan to use new chart symbology to identify the updated approaches. This is believed to have been a major factor soc the following fatal accident, which resulted in considerable loss of life: Jeppesen Chart Basics – a presentation. From May 2,the FAA started publishing new instrument approach plates that include an enlarged segment of airspace to protect aircraft during circling approaches.

The circling approach area has been expanded to provide improved obstacle protection. These values are calculated differently and therefore, may result in different AOM.


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The new airspace also offers pilots additional obstacle clearance while considering their MSL altitude above the MDA, which affects true airspeed. These distances, dependent on aircraft category, are also based on the circling altitude which accounts for the true airspeed increase with altitude. Both systems assume a 25 kt National authorities or operators may require adjustments to be applied to operating minima to compensate for these differences.

For details refer to the relevant documents listed below. Charts without the new designation will continue to be guided by the old, smaller-radii criteria.

Under the new criteria that radius will increase by 65 percent, to 2. The procedures themselves are based on obstacle clearance domains constructed using internationally accepted standards. 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.

The higher the speed of the aircraft, the larger the arc. B, vicinity Busan Korea, Retrieved from ” https: The latter is shown on Table If you wish to contribute or participate in the discussions about articles you are invited to join SKYbrary as a registered user.


Circling Approach – difference between ICAO PANS-OPS and US TERPS – SKYbrary Aviation Safety

The boundaries of protected airspace for circling approaches are defined by arcs drawn from the threshold of each runway at an airport. The basis jepppesen calculation of minima is usually printed on the approach plate see Further Reading: Additionally, pilots not aware of the increased bank angle expected in US TERPS calculations might, in certain circumstances, stray outside the circling area due to the increased circling radius.

As a result, circling minima at certain airports may increase significantly. Table 1 shows the lowest value of visibility assumed by each method:. 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 jeppese.

This is especially true in respect of Circling Approaches where the assumed radius of turn and minimum obstacle clearance are markedly different see below.