Misidentified crossing restriction fix. Failed to comply with restriction altitude.

Attributes
ACN	113836
Time
Date	198906
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : tul
State Reference	OK
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 5700 flight time type : 3000
ASRS Report	113836
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : detected after the fact none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were cleared to cross vinta intersection at 10,000. Read appropriate chart and found vinta to be 036 degree radial 39 DME from tul. After flying several minutes I had it switched in my mind to be 039 degree radial 36 DME. Controller inquired our altitude and said we were over vinta at this time. Several factors enter into play: 1) mind was on personal family situation not on the business at hand. 2) 'standard' procedure from descent into tulsa has been to cross 30 DME out of tul at 10,000. 3) I should have reconstructed the appropriate chart and verified the intersection. 4) although I realize the responsibility is totally mine, it would have been helpful if the controller could have inquired earlier as to potential altitude conflict. 5) better cockpit resource management is in order.

Original NASA ASRS Text

Title: MISIDENTIFIED CROSSING RESTRICTION FIX. FAILED TO COMPLY WITH RESTRICTION ALT.

Narrative: WE WERE CLRED TO CROSS VINTA INTXN AT 10,000. READ APPROPRIATE CHART AND FOUND VINTA TO BE 036 DEG RADIAL 39 DME FROM TUL. AFTER FLYING SEVERAL MINUTES I HAD IT SWITCHED IN MY MIND TO BE 039 DEG RADIAL 36 DME. CTLR INQUIRED OUR ALT AND SAID WE WERE OVER VINTA AT THIS TIME. SEVERAL FACTORS ENTER INTO PLAY: 1) MIND WAS ON PERSONAL FAMILY SITUATION NOT ON THE BUSINESS AT HAND. 2) 'STANDARD' PROC FROM DSCNT INTO TULSA HAS BEEN TO CROSS 30 DME OUT OF TUL AT 10,000. 3) I SHOULD HAVE RECONSTRUCTED THE APPROPRIATE CHART AND VERIFIED THE INTXN. 4) ALTHOUGH I REALIZE THE RESPONSIBILITY IS TOTALLY MINE, IT WOULD HAVE BEEN HELPFUL IF THE CTLR COULD HAVE INQUIRED EARLIER AS TO POTENTIAL ALT CONFLICT. 5) BETTER COCKPIT RESOURCE MGMNT IS IN ORDER.

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.