B767-300 and 300 ER
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Communication Breakdown; Confusion; Situational Awareness
ATC Issue All Types; Deviation - Speed All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR
Flight Crew Requested ATC Assistance / Clarification
Company Policy; Human Factors
Controller advised us that we would be going below Class B airspace. We advised that we would need to slow below 200 knots. Controller requested we keep our speed up as it was IFR and there was no traffic below us. Confusion about Controller ability to waive 200 Knot limit. On arrival; we called Duty Officer and discussed with ATC liaison. We also followed with a call to ATC Supervisor.
B767 Captain reported confusion when ATC requested speed above 200 knots when below the Class Bravo airspace.