C525 pilot neglected to reset altimeter climbing through FL180.

Attributes
ACN	496270
Time
Date	200012
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : fra.vortac
State Reference	CA
Altitude	msl single value : 29000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa.artcc
Operator	general aviation : personal
Make Model Name	Citationjet, C525/C526
Operating Under FAR Part	Part 91
Flight Phase	climbout : vacating altitude
Route In Use	departure : on vectors
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 38 flight time total : 4064 flight time type : 1171
ASRS Report	496270
Person 2
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : published procedure non adherence : clearance non adherence : far non adherence other
Independent Detector	other controllera
Resolutory Action	controller : issued alert other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Barometer was set at field barometric pressure and not switched to 29.92 out of FL180, resulting in incorrect transponder readout. Center asked me if I needed to reset, and I did. Problem solved. There was no separation problem. The problem was caused by not completing the checklist for climb out. Callback conversation with reporter revealed the following information: the aircraft in question was a cessna citation jet C525, being flown singularly by the reporter, who holds a C525S type rating.

Original NASA ASRS Text

Title: C525 PLT NEGLECTED TO RESET ALTIMETER CLBING THROUGH FL180.

Narrative: BAROMETER WAS SET AT FIELD BAROMETRIC PRESSURE AND NOT SWITCHED TO 29.92 OUT OF FL180, RESULTING IN INCORRECT XPONDER READOUT. CTR ASKED ME IF I NEEDED TO RESET, AND I DID. PROB SOLVED. THERE WAS NO SEPARATION PROB. THE PROB WAS CAUSED BY NOT COMPLETING THE CHKLIST FOR CLBOUT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE ACFT IN QUESTION WAS A CESSNA CITATION JET C525, BEING FLOWN SINGULARLY BY THE RPTR, WHO HOLDS A C525S TYPE RATING.

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.