B767-300ER captain reported deviating from cleared departure track at lebl because of lingering wake...

Attributes
ACN	1338870
Time
Date	201603
Local Time Of Day	0601-1200
Place
Locale Reference	LEBL.Airport
State Reference	FO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Aircraft 2
Make Model Name	A340
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter Wake Vortex Encounter Inflight Event / Encounter Weather / Turbulence

Narrative:

I was the PNF and; at the gate; briefed the departure off of runway 25L in lebl. The departure requires an 80 degree turn after takeoff for noise abatement. Company [procedure] mandates that the first turn airborne be hand-flown before engaging the autopilot. We departed behind a heavy A340. At 500 feet; the first officer requested the heading change. I delayed responding to his request because of two factors: I felt we were too slow to initiate that turn as we were very heavy; and; as we initially climbed; we had encountered turbulence; thus at our heavy weight and slow speed wanted to make sure that we would have adequate speed and altitude before continuing the turn.[suggest] choosing a different runway. Take the full 2 minutes behind a departing heavy.

Original NASA ASRS Text

Title: B767-300ER Captain reported deviating from cleared departure track at LEBL because of lingering wake turbulence.

Narrative: I was the PNF and; at the gate; briefed the departure off of runway 25L in LEBL. The departure requires an 80 degree turn after takeoff for noise abatement. Company [procedure] mandates that the first turn airborne be hand-flown before engaging the autopilot. We departed behind a Heavy A340. At 500 feet; the first officer requested the heading change. I delayed responding to his request because of two factors: I felt we were too slow to initiate that turn as we were very heavy; and; as we initially climbed; we had encountered turbulence; thus at our heavy weight and slow speed wanted to make sure that we would have adequate speed and altitude before continuing the turn.[Suggest] choosing a different runway. Take the full 2 minutes behind a departing heavy.

Data retrieved from NASA's ASRS site 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.

B767-300ER captain reported deviating from cleared departure track at lebl because of lingering wake turbulence.