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A mooney private pilot climbs above his assigned altitude when on an IFR flight plan. Pilot attempted VFR on top to remain clear of icing in the clouds below, north of gnv, fl.
| Attributes | |
| ACN | 460908 |
| Time | |
| Date | 200001 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : gnv.airport |
| State Reference | FL |
| Altitude | msl bound lower : 18000 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | Mixed |
| Weather Elements | Ice |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx.artcc tower : leb.tower |
| Operator | general aviation : personal |
| Make Model Name | M-20 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : private |
| Experience | flight time last 90 days : 30 flight time total : 1020 flight time type : 700 |
| ASRS Report | 460908 |
| 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 non adherence : far non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
IFR flight eyw to pdk. Tops projected to be 15000 ft. Climb to higher altitudes along route necessary to remain on top and clear of clouds where icing was a possibility (especially north florida). Spoke to flight watch en route (1 or 2 times). ATC (gnv) tried several times for tops report and said (finally) another aircraft clear at 17000 ft, and cleared me to FL180. I was with ZJX and being vectored east to avoid MOA which went active. Tops higher this direction, and I requested higher. Waiting, ATC was working another aircraft and I was in need to climb to stay clear of clouds where icing was a possibility. My aircraft not icing equipped. I began climb and when possible made ATC aware of the climb to avoid icing. At FL200, I completed the flight on top, over the area of south georgia and north florida where the majority of the WX was. In my mind, I avoided an emergency situation.
Original NASA ASRS Text
Title: A MOONEY PVT PLT CLBS ABOVE HIS ASSIGNED ALT WHEN ON AN IFR FLT PLAN. PLT ATTEMPTED VFR ON TOP TO REMAIN CLR OF ICING IN THE CLOUDS BELOW, N OF GNV, FL.
Narrative: IFR FLT EYW TO PDK. TOPS PROJECTED TO BE 15000 FT. CLB TO HIGHER ALTS ALONG RTE NECESSARY TO REMAIN ON TOP AND CLR OF CLOUDS WHERE ICING WAS A POSSIBILITY (ESPECIALLY N FLORIDA). SPOKE TO FLT WATCH ENRTE (1 OR 2 TIMES). ATC (GNV) TRIED SEVERAL TIMES FOR TOPS RPT AND SAID (FINALLY) ANOTHER ACFT CLR AT 17000 FT, AND CLRED ME TO FL180. I WAS WITH ZJX AND BEING VECTORED E TO AVOID MOA WHICH WENT ACTIVE. TOPS HIGHER THIS DIRECTION, AND I REQUESTED HIGHER. WAITING, ATC WAS WORKING ANOTHER ACFT AND I WAS IN NEED TO CLB TO STAY CLR OF CLOUDS WHERE ICING WAS A POSSIBILITY. MY ACFT NOT ICING EQUIPPED. I BEGAN CLB AND WHEN POSSIBLE MADE ATC AWARE OF THE CLB TO AVOID ICING. AT FL200, I COMPLETED THE FLT ON TOP, OVER THE AREA OF S GEORGIA AND N FLORIDA WHERE THE MAJORITY OF THE WX WAS. IN MY MIND, I AVOIDED AN EMER SIT.
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.