A B767-300 first officer reported encountering wake turbulence shortly after takeoff at their intern...

Attributes
ACN	904535
Time
Date	201008
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Environment
Flight Conditions	Marginal
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Component
Aircraft Component	Landing Gear Indicating System
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 210 Flight Crew Total 11000 Flight Crew Type 7000
Person 2
Function	Pilot Not Flying
Experience	Flight Crew Last 90 Days 260 Flight Crew Total 6000 Flight Crew Type 2500
Events
Anomaly	Aircraft Equipment Problem Less Severe Inflight Event / Encounter Wake Vortex Encounter

Narrative:

I was the flying pilot; performing reduced thrust; flaps 5; ICAO procedure takeoff. We had minimal spacing for takeoff behind an A320. Winds straight down the runway. During normal ICAO encountered mild wake turbulence from preceding aircraft. Retracted gear at the normal point. Approaching 1;300 ft AGL received master caution aural warning. I remained fully engaged flying the aircraft on the ICAO climb schedule; dealing with wake turbulence and the altitude restriction. A quick glance provided a gear door light with all three gear lights indicating black; not down and locked; which matched the handle position. I noted the need to monitor speed for gear door limits. While I flew; the captain and [relief pilot] commented the condition and the captain put the gear handle down noting the gear door indication. Upon normal cycling time the gear indicated 3 green gear lights with no other warnings or indications of problems. The captain then raised the gear handle; a normal retraction occurred. We referenced the associated checklists; determined we were in a normal condition; continued on to destination.

Original NASA ASRS Text

Title: A B767-300 First Officer reported encountering wake turbulence shortly after takeoff at their international departure airport; complicated by an abnormal gear door indication. Cycling the gear solved the indication problem and they continued.

Narrative: I was the flying pilot; performing reduced thrust; flaps 5; ICAO procedure takeoff. We had minimal spacing for takeoff behind an A320. Winds straight down the runway. During normal ICAO encountered mild wake turbulence from preceding aircraft. Retracted gear at the normal point. Approaching 1;300 FT AGL received master caution aural warning. I remained fully engaged flying the aircraft on the ICAO climb schedule; dealing with wake turbulence and the altitude restriction. A quick glance provided a gear door light with all three gear lights indicating black; not down and locked; which matched the handle position. I noted the need to monitor speed for gear door limits. While I flew; the Captain and [Relief Pilot] commented the condition and the Captain put the gear handle down noting the gear door indication. Upon normal cycling time the gear indicated 3 green gear lights with no other warnings or indications of problems. The Captain then raised the gear handle; a normal retraction occurred. We referenced the associated checklists; determined we were in a normal condition; continued on to destination.

Data retrieved from NASA's ASRS site as of April 2012 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 B767-300 first officer reported encountering wake turbulence shortly after takeoff at their international departure airport; complicated by an abnormal gear door indication. Cycling the gear solved the indication problem and they continued.