Wrong altimeter setting leads to a leveloff below assigned altitude on departure.

Attributes
ACN	470750
Time
Date	200004
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pdk.airport
State Reference	GA
Altitude	msl single value : 3700
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : atl.tracon tower : oma.tower
Operator	general aviation : personal
Make Model Name	Cessna 340/340A
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 45 flight time total : 2013 flight time type : 300
ASRS Report	470750
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	altitude deviation : undershoot non adherence : far non adherence : published procedure non adherence : clearance other anomaly other
Independent Detector	other controllerb
Resolutory Action	controller : issued advisory
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

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.

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.