A CRJ100 crew discovered that at canadian airports; a 'taxi to' clearance does not authorize an airc...

Attributes
ACN	647800
Time
Date	200502
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : cyyz.airport
State Reference	ON
Altitude	agl single value : 0
Environment
Flight Conditions	IMC
Weather Elements	Windshear Snow
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Challenger CL600
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 220 flight time total : 6420 flight time type : 4075
ASRS Report	647800
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : published procedure non adherence : far non adherence other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Company Chart Or Publication Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

I was recently made aware; 4 hours ago; of a canadian operational policy which states that when cleared to 'taxi to' an assigned takeoff runway or to 'taxi to' any other point on the airport an aircraft is not implicitly cleared to cross any runway which intersects the taxi route to that takeoff runway or other point. This policy requires specific ATC clearance to cross each and every runway encountered along the taxi route; is very much more restrictive than far 91.129(I); and to the best of my knowledge is not discussed in any company issued manual. I operated a flight to cyyz and attempted to fly back to ZZZ but never departed cyyz due to a combination of mechanical and WX related issues. A snow storm was reducing visibility to 4000 ft RVR and 28 KT winds caused snow to drift and obscure taxiway signs and markings. The first officer and I tried our best to conduct a safe and compliant operation; but I was unaware of the requirement for specific clearance prior to crossing every runway and an inadvertent deviation could have occurred; although ATC made no complaints. It is my belief that other pilots would benefit from having this canadian operational policy explained in the operations manual.

Original NASA ASRS Text

Title: A CRJ100 CREW DISCOVERED THAT AT CANADIAN ARPTS; A 'TAXI TO' CLRNC DOES NOT AUTHORIZE AN ACFT TO CROSS RWYS ENRTE; EITHER ACTIVE OR INACTIVE.

Narrative: I WAS RECENTLY MADE AWARE; 4 HRS AGO; OF A CANADIAN OPERATIONAL POLICY WHICH STATES THAT WHEN CLRED TO 'TAXI TO' AN ASSIGNED TKOF RWY OR TO 'TAXI TO' ANY OTHER POINT ON THE ARPT AN ACFT IS NOT IMPLICITLY CLRED TO CROSS ANY RWY WHICH INTERSECTS THE TAXI RTE TO THAT TKOF RWY OR OTHER POINT. THIS POLICY REQUIRES SPECIFIC ATC CLRNC TO CROSS EACH AND EVERY RWY ENCOUNTERED ALONG THE TAXI RTE; IS VERY MUCH MORE RESTRICTIVE THAN FAR 91.129(I); AND TO THE BEST OF MY KNOWLEDGE IS NOT DISCUSSED IN ANY COMPANY ISSUED MANUAL. I OPERATED A FLT TO CYYZ AND ATTEMPTED TO FLY BACK TO ZZZ BUT NEVER DEPARTED CYYZ DUE TO A COMBINATION OF MECHANICAL AND WX RELATED ISSUES. A SNOW STORM WAS REDUCING VISIBILITY TO 4000 FT RVR AND 28 KT WINDS CAUSED SNOW TO DRIFT AND OBSCURE TXWY SIGNS AND MARKINGS. THE FO AND I TRIED OUR BEST TO CONDUCT A SAFE AND COMPLIANT OP; BUT I WAS UNAWARE OF THE REQUIREMENT FOR SPECIFIC CLRNC PRIOR TO XING EVERY RWY AND AN INADVERTENT DEV COULD HAVE OCCURRED; ALTHOUGH ATC MADE NO COMPLAINTS. IT IS MY BELIEF THAT OTHER PLTS WOULD BENEFIT FROM HAVING THIS CANADIAN OPERATIONAL POLICY EXPLAINED IN THE OPS MANUAL.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

A CRJ100 crew discovered that at canadian airports; a 'taxi to' clearance does not authorize an aircraft to cross runways en route; either active or inactive.