|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : mic|
airport : fcm
|Altitude||msl bound lower : 1500|
msl bound upper : 3000
|Controlling Facilities||tracon : msp|
|Operator||general aviation : personal|
|Make Model Name||Small Aircraft, Low Wing, 1 Eng, Retractable Gear|
|Flight Phase||cruise other|
descent : approach
|Route In Use||enroute : on vectors|
|Function||flight crew : single pilot|
|Qualification||pilot : instrument|
pilot : commercial
|Experience||flight time last 90 days : 40|
flight time total : 800
|Affiliation||government : faa|
|Function||controller : approach|
|Qualification||controller : radar|
|Anomaly||aircraft equipment problem : critical|
inflight encounter : weather
other anomaly other
|Independent Detector||other flight crewa|
|Resolutory Action||controller : provided flight assist|
controller : issued new clearance
flight crew : declared emergency
While on radar vectors en route to crystal, I experienced a pitot/static system failure. While maintaining 3000' my altimeter suddenly dropped to approximately 2500' and my vsi showed 2000 FPM descent. At the same time this happened, approach called asking my altitude. My vsi was normal at this time and my indicated altitude agreed with what approach said they were reading so I elected to continue to crystal. In a few seconds I lost my airspeed indicator (showed 0), so I asked approach to let me find VFR. I was allowed to descend to 1500' while turning south towards fcm. I broke out of the clouds with fly cloud field directly off my left wing. I was turned over to fly cloud tower and allowed to land. I have a very light accumulation of mixed ice on the leading edge of the plane. Pitot heat was working on preflight. When I turned it on prior to entering the clouds, there was a bunch of static coming through the radio. On the ground I checked pitot heat again and it didn't work. The pitot heat has been repaired since at crystal shamrock, crystal airport.
Original NASA ASRS Text
Title: LOSS OF FLT INSTRUMENTS IN IMC. FLTASSIST.
Narrative: WHILE ON RADAR VECTORS ENRTE TO CRYSTAL, I EXPERIENCED A PITOT/STATIC SYS FAILURE. WHILE MAINTAINING 3000' MY ALTIMETER SUDDENLY DROPPED TO APPROX 2500' AND MY VSI SHOWED 2000 FPM DSCNT. AT THE SAME TIME THIS HAPPENED, APCH CALLED ASKING MY ALT. MY VSI WAS NORMAL AT THIS TIME AND MY INDICATED ALT AGREED WITH WHAT APCH SAID THEY WERE READING SO I ELECTED TO CONTINUE TO CRYSTAL. IN A FEW SECS I LOST MY AIRSPD INDICATOR (SHOWED 0), SO I ASKED APCH TO LET ME FIND VFR. I WAS ALLOWED TO DSND TO 1500' WHILE TURNING S TOWARDS FCM. I BROKE OUT OF THE CLOUDS WITH FLY CLOUD FIELD DIRECTLY OFF MY LEFT WING. I WAS TURNED OVER TO FLY CLOUD TWR AND ALLOWED TO LAND. I HAVE A VERY LIGHT ACCUMULATION OF MIXED ICE ON THE LEADING EDGE OF THE PLANE. PITOT HEAT WAS WORKING ON PREFLT. WHEN I TURNED IT ON PRIOR TO ENTERING THE CLOUDS, THERE WAS A BUNCH OF STATIC COMING THROUGH THE RADIO. ON THE GND I CHKED PITOT HEAT AGAIN AND IT DIDN'T WORK. THE PITOT HEAT HAS BEEN REPAIRED SINCE AT CRYSTAL SHAMROCK, CRYSTAL ARPT.
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.