Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Engineer; Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Flight Instructor
Flight Crew Last 90 Days 210; Flight Crew Total 18000; Flight Crew Type 400
Deviation - Speed All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Wake Vortex Encounter
General None Reported / Taken
Environment - Non Weather Related
ATC assigned 160 KTS to 4 DME. The Captain (pilot flying) slowed to 155 KTS after a wake turbulence encounter at approximately 6 DME. ATC queried our speed; we reported 155 KTS and explanation. They chastised us and there was no problem. Normal landing. Aircraft behind us continued normally.
A330-300 First Officer reported slowing below assigned speed on final at EGLL following a wake vortex encounter.