Narrative:

On initial climb out in IMC, I was cleared to and climbed to 4000 ft MSL. The controller called and asked me my altitude. I reported 4000 ft MSL. He reported pdk altimeter as 29.74. I obviously had not set my altimeter correctly. It read 30.03 (the last setting from previous flight). This could have caused a dangerous situation. In all my yrs of flying, I cannot remember doing this. I will certainly be more vigilant in the future, follow the checklist more closely and doublechk myself. I must practice the same CRM I practice in a 2 pilot situation.

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Original NASA ASRS Text

Title: WRONG ALTIMETER SETTING LEADS TO A LEVELOFF BELOW ASSIGNED ALT ON DEP.

Narrative: ON INITIAL CLBOUT IN IMC, I WAS CLRED TO AND CLBED TO 4000 FT MSL. THE CTLR CALLED AND ASKED ME MY ALT. I RPTED 4000 FT MSL. HE RPTED PDK ALTIMETER AS 29.74. I OBVIOUSLY HAD NOT SET MY ALTIMETER CORRECTLY. IT READ 30.03 (THE LAST SETTING FROM PREVIOUS FLT). THIS COULD HAVE CAUSED A DANGEROUS SIT. IN ALL MY YRS OF FLYING, I CANNOT REMEMBER DOING THIS. I WILL CERTAINLY BE MORE VIGILANT IN THE FUTURE, FOLLOW THE CHKLIST MORE CLOSELY AND DOUBLECHK MYSELF. I MUST PRACTICE THE SAME CRM I PRACTICE IN A 2 PLT SIT.

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.