|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||atc facility : orf|
|Altitude||msl bound lower : 6000|
msl bound upper : 7500
|Controlling Facilities||tracon : orf|
|Operator||general aviation : personal|
|Make Model Name||Small Aircraft, Low Wing, 1 Eng, Fixed Gear|
|Flight Phase||cruise other|
|Function||flight crew : single pilot|
|Qualification||pilot : instrument|
pilot : private
|Experience||flight time last 90 days : 30|
flight time total : 310
flight time type : 150
|Anomaly||altitude deviation : excursion from assigned altitude|
non adherence : clearance
|Independent Detector||other controllera|
other flight crewa
|Resolutory Action||flight crew : became reoriented|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
Assigned 6000' by orf approach. They were vectoring me around a line ot thunderstorms. During a 2 min period of moderate turbulence, I was concentrating solely on keeping the wings level. A vertical shaft of air carried me to 7500' in less than 1 min. I believe that trying to out descend this vertical shaft would have been extremely dangerous, and the big sky method of collision avoidance seems safer to me. Callback conversation with reporter revealed the following: pilot felt maintaining wings level attitude was primary task and returned to assigned altitude as soon as able. Communicated problem to controller. Had a very scared passenger on board.
Original NASA ASRS Text
Title: ALT DEVIATION WHILE CIRCUMNAVIGATING TSTM.
Narrative: ASSIGNED 6000' BY ORF APCH. THEY WERE VECTORING ME AROUND A LINE OT TSTMS. DURING A 2 MIN PERIOD OF MODERATE TURB, I WAS CONCENTRATING SOLELY ON KEEPING THE WINGS LEVEL. A VERT SHAFT OF AIR CARRIED ME TO 7500' IN LESS THAN 1 MIN. I BELIEVE THAT TRYING TO OUT DSND THIS VERT SHAFT WOULD HAVE BEEN EXTREMELY DANGEROUS, AND THE BIG SKY METHOD OF COLLISION AVOIDANCE SEEMS SAFER TO ME. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: PLT FELT MAINTAINING WINGS LEVEL ATTITUDE WAS PRIMARY TASK AND RETURNED TO ASSIGNED ALT AS SOON AS ABLE. COMMUNICATED PROB TO CTLR. HAD A VERY SCARED PAX ON BOARD.
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.