Altitude deviation. Track deviation. In-flight WX encounter.

Attributes
ACN	137882
Time
Date	199002
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : tul
State Reference	OK
Altitude	msl bound lower : 12000 msl bound upper : 12500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc tracon : tul
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private pilot : commercial
Experience	flight time last 90 days : 15 flight time total : 1100 flight time type : 200
ASRS Report	137882
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter : weather non adherence : clearance other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I took off from rogers airport, after 2 briefings, believing the tops were at 7000 MSL and also knowing ice was reported in the clouds above freezing level. As I approached tulsa we were handed from ZKC to tulsa approach. At that time I requested 12000' to get over the tops, we were currently in the clear. I realized the tops were above us at approximately 14000-16000 but the clouds were very thin and reported to be 70-110 miles wide so I decided to penetrate to see if there was ice. We picked up ice within 3 min of cloud penetration and I asked for a 180 degree turn. As we exited the clouds we headed back to rcz while I called flight watch which we tried a more southerly route. We entered the clouds and began to ice again at which time I asked for another 180 turn. The controller's reply indicated it would be a few moments at which time I began a 180 degree turn and started a climb to get out of icing as soon as possible for the safety of the flight. I deviated from altitude and course without permission which occurred because of my determined attitude to complete the flight over the shortest route and more thorough briefing was necessary.

Original NASA ASRS Text

Title: ALT DEVIATION. TRACK DEVIATION. INFLT WX ENCOUNTER.

Narrative: I TOOK OFF FROM ROGERS ARPT, AFTER 2 BRIEFINGS, BELIEVING THE TOPS WERE AT 7000 MSL AND ALSO KNOWING ICE WAS REPORTED IN THE CLOUDS ABOVE FREEZING LEVEL. AS I APCHED TULSA WE WERE HANDED FROM ZKC TO TULSA APCH. AT THAT TIME I REQUESTED 12000' TO GET OVER THE TOPS, WE WERE CURRENTLY IN THE CLEAR. I REALIZED THE TOPS WERE ABOVE US AT APPROX 14000-16000 BUT THE CLOUDS WERE VERY THIN AND REPORTED TO BE 70-110 MILES WIDE SO I DECIDED TO PENETRATE TO SEE IF THERE WAS ICE. WE PICKED UP ICE WITHIN 3 MIN OF CLOUD PENETRATION AND I ASKED FOR A 180 DEG TURN. AS WE EXITED THE CLOUDS WE HEADED BACK TO RCZ WHILE I CALLED FLT WATCH WHICH WE TRIED A MORE SOUTHERLY ROUTE. WE ENTERED THE CLOUDS AND BEGAN TO ICE AGAIN AT WHICH TIME I ASKED FOR ANOTHER 180 TURN. THE CTLR'S REPLY INDICATED IT WOULD BE A FEW MOMENTS AT WHICH TIME I BEGAN A 180 DEG TURN AND STARTED A CLIMB TO GET OUT OF ICING AS SOON AS POSSIBLE FOR THE SAFETY OF THE FLT. I DEVIATED FROM ALT AND COURSE WITHOUT PERMISSION WHICH OCCURRED BECAUSE OF MY DETERMINED ATTITUDE TO COMPLETE THE FLT OVER THE SHORTEST ROUTE AND MORE THOROUGH BRIEFING WAS NECESSARY.

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.