Corp aircraft mis-sets altimeter. Altitude deviation.

Attributes
ACN	309130
Time
Date	199507
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : olm
State Reference	WA
Altitude	msl bound lower : 9600 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zse
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 2800 flight time type : 1400
ASRS Report	309130
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence other other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : became reoriented flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

ZSE told me to cross whyte intersection at or below 16000 ft, descend and maintain 10000 ft and then gave me the olm's altimeter setting. When I reached 10000 ft 7 NM west of whyte intersection, center said 'I show you at 9600 ft off your encoder' and then said the olm altimeter again (29.91). For some unknown reason, I had set the altimeter to 30.11 for the descent. I immediately corrected. I was tired and was not listening to what the controller was telling me. I was too relaxed with the flight and I became complacent. I try and fight against complacency, but that time it got me.

Original NASA ASRS Text

Title: CORP ACFT MIS-SETS ALTIMETER. ALTDEV.

Narrative: ZSE TOLD ME TO CROSS WHYTE INTXN AT OR BELOW 16000 FT, DSND AND MAINTAIN 10000 FT AND THEN GAVE ME THE OLM'S ALTIMETER SETTING. WHEN I REACHED 10000 FT 7 NM W OF WHYTE INTXN, CTR SAID 'I SHOW YOU AT 9600 FT OFF YOUR ENCODER' AND THEN SAID THE OLM ALTIMETER AGAIN (29.91). FOR SOME UNKNOWN REASON, I HAD SET THE ALTIMETER TO 30.11 FOR THE DSCNT. I IMMEDIATELY CORRECTED. I WAS TIRED AND WAS NOT LISTENING TO WHAT THE CTLR WAS TELLING ME. I WAS TOO RELAXED WITH THE FLT AND I BECAME COMPLACENT. I TRY AND FIGHT AGAINST COMPLACENCY, BUT THAT TIME IT GOT ME.

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.