A/C off the runway in CPH

[tribo]

Re: A/C off the runway in CPH

Originally Posted by Short Approach?

Neither I (ATCO) or the ground guy whoo does the measuring will take steps to close a runway. He reports what he sees and measuers, I relay the report to the A/C´s, and then it´s ultimately their decision.

Ever heard about GASR?

http://www.airports.unina.it/

They have a Working Paper 061 Aspects related to winter mintenance of aerodromes, hereunder contamination measurement and reporting.

http://www.airports.unina.it/WP%20061%20.pdf

With four appendix:
http://www.airports.unina.it/WP%2006...pendix%201.pdf
http://www.airports.unina.it/WP%2006...pendix%202.pdf
http://www.airports.unina.it/WP%2006...pendix%203.pdf
http://www.airports.unina.it/WP%2006...pendix%204.pdf

There exist a draft GASR Working Paper, (not publihed) from where i quote:


Introduction

Winter operations are among the most challenging flight operations. During winter the weather is worse, with low cloud base, reduced visibility and heavy winds, and in addition the runways often are covered with snow and ice.

The GASR AGA WP061 – “Aspects related to winter maintenance of aerodromes, hereunder contamination measurement and reporting”- stated that predicting aircraft braking action based on friction measurement is more complicated and unreliable than earlier assumed. Further it was realised that the way of reporting runway status to aircrew varies among GASR states.

During the winter 1999/2000 Norway experienced a number of runway veer-offs/overruns on contaminated runways. Thereafter the CAA-Norway focused on winter operations and one result was the new requirements for runway status reporting. The revised reporting gives special attention to the great uncertainty related to the measurement of friction level and depth of deposits.

However it is of vital importance for safe winter operations that reporting of runway status can never be a substitute to the removal of deposits of slush, snow or ice. Aviation authorities should therefore require that the aerodrome operator establish exact criteria for winter maintenance of runways and other parts of the movement area and to deny operations on areas not meeting the established criteria. The requirements for a safety management system should further assure that if a risk analyses concludes that the runway conditions are not acceptable, then the runway should be kept closed until the conditions becomes acceptable.

In the Norwegian regulation BSL E 4-1 and 4-2 the Authorithy requires closing criterias to be established. (Norwegian text)

http://www.lovdata.no/cgi-wift/ldles...0627-0935.html

http://www.lovdata.no/cgi-wift/ldles...0427-0670.html