Misinterpreted ATC communication speed below 10000 ft.

Attributes
ACN	320632
Time
Date	199511
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : ymx
State Reference	FO
Altitude	msl bound lower : 8500 msl bound upper : 8500
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	enroute airway : czyz
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 25 flight time total : 6000 flight time type : 500
ASRS Report	320632
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted other
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

I was captain of flight X from ymx-mem. On climb out of ymx above 3000 ft I was cleared to FL230. I accelerated the aircraft to 340 KTS below 10000 ft MSL as per our operations specifications and canadian regulations. I was handed off to ymx. While still in canadian airspace leaving 8500 ft MSL ymx queried me on my approach. If there is a special speed restr in that area it is not readily available. I do not believe I was in violation of an airspeed regulation. However, if I was, it was not published on any charts, NOTAMS or regulations (canadian) made available to pilots. If there are airspeed restr in that airspace they should be published on the charts.

Original NASA ASRS Text

Title: MISINTERPRETED ATC COM SPD BELOW 10000 FT.

Narrative: I WAS CAPT OF FLT X FROM YMX-MEM. ON CLBOUT OF YMX ABOVE 3000 FT I WAS CLRED TO FL230. I ACCELERATED THE ACFT TO 340 KTS BELOW 10000 FT MSL AS PER OUR OPS SPECS AND CANADIAN REGS. I WAS HANDED OFF TO YMX. WHILE STILL IN CANADIAN AIRSPACE LEAVING 8500 FT MSL YMX QUERIED ME ON MY APCH. IF THERE IS A SPECIAL SPD RESTR IN THAT AREA IT IS NOT READILY AVAILABLE. I DO NOT BELIEVE I WAS IN VIOLATION OF AN AIRSPD REG. HOWEVER, IF I WAS, IT WAS NOT PUBLISHED ON ANY CHARTS, NOTAMS OR REGS (CANADIAN) MADE AVAILABLE TO PLTS. IF THERE ARE AIRSPD RESTR IN THAT AIRSPACE THEY SHOULD BE PUBLISHED ON THE CHARTS.

Data retrieved from NASA's ASRS site as of July 2007 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.