Narrative:

I obtained the clearance from lax clearance delivery and, after a misunderstanding, I briefed my sic on what I believed to be the clearance. The clearance should have been takeoff heading 250 degrees, then radar vectors to lax 316 degree radial. I briefed to takeoff heading 250 degrees, then intercept the lax 316 degree radial. After takeoff I did not hear tower tell us to contact departure control. Once we were established on the 316 degree radial, I asked tower if they wanted us on departure frequency. The answer was yes. I went to departure and they asked if I had been cleared to turn. I answered that I thought that was my clearance. I asked for a phone number to discuss it on the ground. I briefed my company first. They called socal and then I called. The supervisor asked if I knew how I should have flown the departure and I said I do now. He said that would be all he needed and there would be no paperwork. Lesson learned: insure you know exactly what a clearance is, even if the person giving the clearance is speaking very fast and sounds irritated because you have already asked him to repeat it once.

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Original NASA ASRS Text

Title: A DEP HAWKER 800XP TURNS TO INTERCEPT THE PROGRAMMED RADIAL PRIOR TO RECEIVING A RADAR VECTOR FROM DEP CTLR 4 MI NW OF LAX, CA.

Narrative: I OBTAINED THE CLRNC FROM LAX CLRNC DELIVERY AND, AFTER A MISUNDERSTANDING, I BRIEFED MY SIC ON WHAT I BELIEVED TO BE THE CLRNC. THE CLRNC SHOULD HAVE BEEN TKOF HEADING 250 DEGS, THEN RADAR VECTORS TO LAX 316 DEG RADIAL. I BRIEFED TO TKOF HEADING 250 DEGS, THEN INTERCEPT THE LAX 316 DEG RADIAL. AFTER TKOF I DID NOT HEAR TWR TELL US TO CONTACT DEP CTL. ONCE WE WERE ESTABLISHED ON THE 316 DEG RADIAL, I ASKED TWR IF THEY WANTED US ON DEP FREQ. THE ANSWER WAS YES. I WENT TO DEP AND THEY ASKED IF I HAD BEEN CLRED TO TURN. I ANSWERED THAT I THOUGHT THAT WAS MY CLRNC. I ASKED FOR A PHONE NUMBER TO DISCUSS IT ON THE GND. I BRIEFED MY COMPANY FIRST. THEY CALLED SOCAL AND THEN I CALLED. THE SUPVR ASKED IF I KNEW HOW I SHOULD HAVE FLOWN THE DEP AND I SAID I DO NOW. HE SAID THAT WOULD BE ALL HE NEEDED AND THERE WOULD BE NO PAPERWORK. LESSON LEARNED: INSURE YOU KNOW EXACTLY WHAT A CLRNC IS, EVEN IF THE PERSON GIVING THE CLRNC IS SPEAKING VERY FAST AND SOUNDS IRRITATED BECAUSE YOU HAVE ALREADY ASKED HIM TO REPEAT IT ONCE.

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.