Pilot of a piper aztec encounters wake turbulence on takeoff behind a cessna citation.

Attributes
ACN	429141
Time
Date	199902
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mmu.airport
State Reference	NJ
Altitude	agl single value : 100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mmu.tower tower : la.tower
Operator	common carrier : air carrier
Make Model Name	PA-23-250 Turbo Aztec
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff
Flight Plan	None
Aircraft 2
Controlling Facilities	tower : mmu.tower
Operator	general aviation : personal
Make Model Name	Cessna Citation Undifferentiated or Other Model
Flight Phase	climbout : initial
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Experience	flight time last 90 days : 25 flight time total : 950 flight time type : 500
ASRS Report	429141
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	inflight encounter : wake turbulence
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited adverse environment
Supplementary
Problem Areas	Environmental Factor
Primary Problem	Environmental Factor

Narrative:

I was advised that the citation departing ahead of me could produce wake turbulence. I asked for a turn to 330 degrees (departing runway 23) so I could turn and avoid wake. I lifted off and the liftoff was well before the spot the citation lifted off. I then started a right turn. I got a little buffet, I believe from the wake, and straightened out and hit clear air and continued my turn. 2 thoughts: 1) do not depend on lifting off before spot other aircraft did to eliminate chance of wake encounter. 2) do not start a turn in a possible wake encounter situation -- or at least not so close to the ground.

Original NASA ASRS Text

Title: PLT OF A PIPER AZTEC ENCOUNTERS WAKE TURB ON TKOF BEHIND A CESSNA CITATION.

Narrative: I WAS ADVISED THAT THE CITATION DEPARTING AHEAD OF ME COULD PRODUCE WAKE TURB. I ASKED FOR A TURN TO 330 DEGS (DEPARTING RWY 23) SO I COULD TURN AND AVOID WAKE. I LIFTED OFF AND THE LIFTOFF WAS WELL BEFORE THE SPOT THE CITATION LIFTED OFF. I THEN STARTED A R TURN. I GOT A LITTLE BUFFET, I BELIEVE FROM THE WAKE, AND STRAIGHTENED OUT AND HIT CLR AIR AND CONTINUED MY TURN. 2 THOUGHTS: 1) DO NOT DEPEND ON LIFTING OFF BEFORE SPOT OTHER ACFT DID TO ELIMINATE CHANCE OF WAKE ENCOUNTER. 2) DO NOT START A TURN IN A POSSIBLE WAKE ENCOUNTER SIT -- OR AT LEAST NOT SO CLOSE TO THE GND.

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.