Learjet 35 captain turned the opposite direction during departure climb after takeoff due to the first officer instructing him to turn that way when he had already started the turn in the correct direction.

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Attributes
ACN	535981
Time
Date	200201
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sdl.airport
State Reference	AZ
Altitude	msl bound lower : 2500 msl bound upper : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : p50.tracon
Operator	general aviation : corporate
Make Model Name	Learjet 35
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : instrument pilot : multi engine pilot : atp
Experience	flight time last 90 days : 115 flight time total : 8090 flight time type : 460
ASRS Report	535981
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	atc equipment other atc equipment : radar other controllera
Resolutory Action	none taken : detected after the fact none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We had been assigned the banyo 3 departure, zuri transition off scottsdale with a takeoff on runway 3. I was the captain and PF. I had it in my mind that I would turn left to a heading of 260 degrees. When I started the left turn, the PNF said 'right turn, right turn.' I thought I must have been mistaken about the left turn and turned right. When we contacted phx departure they informed as it should have been a left turn as I originally thought. I think this event happened because I didn't have it firmly enough in my head what I was going to do and let the PNF talk me into a turn in the wrong direction. I only have about 20 hours as a captain, and I'm accustomed to being the copilot for the pilot who was the PNF. Since the roles were reversed on paper, but not necessarily in my mind, I followed his instructions without questioning them enough. We should have done a more thorough preflight, predep briefing so that we were both on the same page. Obviously, we weren't.

Original NASA ASRS Text

Title: LEARJET 35 CAPT TURNED THE OPPOSITE DIRECTION DURING DEP CLB AFTER TKOF DUE TO THE FO INSTRUCTING HIM TO TURN THAT WAY WHEN HE HAD ALREADY STARTED THE TURN IN THE CORRECT DIRECTION.

Narrative: WE HAD BEEN ASSIGNED THE BANYO 3 DEP, ZURI TRANSITION OFF SCOTTSDALE WITH A TKOF ON RWY 3. I WAS THE CAPT AND PF. I HAD IT IN MY MIND THAT I WOULD TURN L TO A HDG OF 260 DEGS. WHEN I STARTED THE L TURN, THE PNF SAID 'R TURN, R TURN.' I THOUGHT I MUST HAVE BEEN MISTAKEN ABOUT THE L TURN AND TURNED R. WHEN WE CONTACTED PHX DEP THEY INFORMED AS IT SHOULD HAVE BEEN A L TURN AS I ORIGINALLY THOUGHT. I THINK THIS EVENT HAPPENED BECAUSE I DIDN'T HAVE IT FIRMLY ENOUGH IN MY HEAD WHAT I WAS GOING TO DO AND LET THE PNF TALK ME INTO A TURN IN THE WRONG DIRECTION. I ONLY HAVE ABOUT 20 HRS AS A CAPT, AND I'M ACCUSTOMED TO BEING THE COPLT FOR THE PLT WHO WAS THE PNF. SINCE THE ROLES WERE REVERSED ON PAPER, BUT NOT NECESSARILY IN MY MIND, I FOLLOWED HIS INSTRUCTIONS WITHOUT QUESTIONING THEM ENOUGH. WE SHOULD HAVE DONE A MORE THOROUGH PREFLT, PREDEP BRIEFING SO THAT WE WERE BOTH ON THE SAME PAGE. OBVIOUSLY, WE WEREN'T.

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.