Altitude deviation, wrong altimeter setting.

Attributes
ACN	99749
Time
Date	198812
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ffu
State Reference	UT
Altitude	msl bound lower : 18600 msl bound upper : 19000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zlc
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 12000 flight time type : 2000
ASRS Report	99749
Person 2
Affiliation	company : air carrier
Function	flight crew : captain
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Was given crossing restriction on a direct route to ffu VOR cross 10 north at 170/250 KTS. They were shooting approachs to slc in limited visibility. Hence center was slowing aircraft and delay vectoring other aircraft. We started our descent checklist to get the talking out of the way so as not to miss any radio calls. This was at 20000'. We reset altimeter to slc setting 3046 set decision ht and radio altimeters and discussed map. Right after this center gave us a heading and changed descent clearance to FL190. We stopped descent at FL190 and discovered our wrong altimeter setting showing us around 18600'. At about same time center said we were at wrong altitude and had us descend to FL180. We set altimeters to proper settings and continued on into slc. In our hurry to avoid problems we created a few for ourselves.

Original NASA ASRS Text

Title: ALT DEVIATION, WRONG ALTIMETER SETTING.

Narrative: WAS GIVEN XING RESTRICTION ON A DIRECT ROUTE TO FFU VOR CROSS 10 N AT 170/250 KTS. THEY WERE SHOOTING APCHS TO SLC IN LIMITED VISIBILITY. HENCE CENTER WAS SLOWING ACFT AND DELAY VECTORING OTHER ACFT. WE STARTED OUR DSCNT CHKLIST TO GET THE TALKING OUT OF THE WAY SO AS NOT TO MISS ANY RADIO CALLS. THIS WAS AT 20000'. WE RESET ALTIMETER TO SLC SETTING 3046 SET DECISION HT AND RADIO ALTIMETERS AND DISCUSSED MAP. RIGHT AFTER THIS CENTER GAVE US A HDG AND CHANGED DSCNT CLRNC TO FL190. WE STOPPED DSCNT AT FL190 AND DISCOVERED OUR WRONG ALTIMETER SETTING SHOWING US AROUND 18600'. AT ABOUT SAME TIME CENTER SAID WE WERE AT WRONG ALT AND HAD US DSND TO FL180. WE SET ALTIMETERS TO PROPER SETTINGS AND CONTINUED ON INTO SLC. IN OUR HURRY TO AVOID PROBS WE CREATED A FEW FOR OURSELVES.

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.