Narrative:

Recently went to a 2 pilot crew. Our company hired a low time pilot and this is the first time I have worked in a 2 pilot environment. As I am used to flying solo, I am having a hard time getting used to the 2 pilot system. Taxied out at dawn, 4 planes in line for departure. We were issued a VFR stage III departure clearance, left turn 270 degree 4500'. We were cleared for takeoff immediately behind a medium large transport. As there were other planes waiting, I decided to get the plane off the runway as soon as possible and to the 270 degree heading to avoid any wake turbulence. As I was concentrating on avoiding the wake turbulence, I let the copilot handle the radios and didn't listen to them during the takeoff roll. Turned to 270 degree an as I leveled at 4500', the controller came on and said I was cleared only to 4000'. Copilot immediately apologized. Controller said no problem, stay at 4500'. Copilot said controller never said 4000'. Controller said he did but pilot didn't acknowledge. Controller blamed himself for not forcing pilot for acknowledgement. I blame myself for not paying attention, putting too much trust in a new copilot and not being used to a 2 pilot environment. I am sure copilot heard clearance but forgot it or it didn't sink in.

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Original NASA ASRS Text

Title: CPR SMT ALT DEVIATION OVERSHOT DURING CLIMB.

Narrative: RECENTLY WENT TO A 2 PLT CREW. OUR COMPANY HIRED A LOW TIME PLT AND THIS IS THE FIRST TIME I HAVE WORKED IN A 2 PLT ENVIRONMENT. AS I AM USED TO FLYING SOLO, I AM HAVING A HARD TIME GETTING USED TO THE 2 PLT SYS. TAXIED OUT AT DAWN, 4 PLANES IN LINE FOR DEP. WE WERE ISSUED A VFR STAGE III DEP CLRNC, LEFT TURN 270 DEG 4500'. WE WERE CLRED FOR TKOF IMMEDIATELY BEHIND A MLG. AS THERE WERE OTHER PLANES WAITING, I DECIDED TO GET THE PLANE OFF THE RWY AS SOON AS POSSIBLE AND TO THE 270 DEG HDG TO AVOID ANY WAKE TURB. AS I WAS CONCENTRATING ON AVOIDING THE WAKE TURB, I LET THE COPLT HANDLE THE RADIOS AND DIDN'T LISTEN TO THEM DURING THE TKOF ROLL. TURNED TO 270 DEG AN AS I LEVELED AT 4500', THE CTLR CAME ON AND SAID I WAS CLRED ONLY TO 4000'. COPLT IMMEDIATELY APOLOGIZED. CTLR SAID NO PROB, STAY AT 4500'. COPLT SAID CTLR NEVER SAID 4000'. CTLR SAID HE DID BUT PLT DIDN'T ACKNOWLEDGE. CTLR BLAMED HIMSELF FOR NOT FORCING PLT FOR ACKNOWLEDGEMENT. I BLAME MYSELF FOR NOT PAYING ATTN, PUTTING TOO MUCH TRUST IN A NEW COPLT AND NOT BEING USED TO A 2 PLT ENVIRONMENT. I AM SURE COPLT HEARD CLRNC BUT FORGOT IT OR IT DIDN'T SINK IN.

Data retrieved from NASA's ASRS site as of August 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.