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Pilot of small aircraft encountered ground fog, obtained IFR clearance for on top, returned to VFR conditions for landing.
| Attributes | |
| ACN | 133573 |
| Time | |
| Date | 199001 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : cid |
| State Reference | IA |
| Altitude | msl bound lower : 2500 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | tracon : cid |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : private pilot : instrument |
| Experience | flight time last 90 days : 34 flight time total : 547 flight time type : 200 |
| ASRS Report | 133573 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | inflight encounter : weather |
| Independent Detector | other other : unspecified cockpit |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Conditions turned to IFR at cid due to ground fog forming underneath me. I was still and always was in VFR conditions, but on top. Having recently become an instrument pilot, I remembered that VFR on top was an IFR clearance. So I thought I needed an IFR clearance to continue. I requested and received the clearance. Ames, north of des moines, was VFR then. Within a few minutes, des moines went IFR, so since I was not fully prepared to do an instrument approach, I elected to do a 180 and fly back to completely VFR conditions to execute a landing.
Original NASA ASRS Text
Title: PLT OF SMA ENCOUNTERED GND FOG, OBTAINED IFR CLRNC FOR ON TOP, RETURNED TO VFR CONDITIONS FOR LNDG.
Narrative: CONDITIONS TURNED TO IFR AT CID DUE TO GND FOG FORMING UNDERNEATH ME. I WAS STILL AND ALWAYS WAS IN VFR CONDITIONS, BUT ON TOP. HAVING RECENTLY BECOME AN INSTRUMENT PLT, I REMEMBERED THAT VFR ON TOP WAS AN IFR CLRNC. SO I THOUGHT I NEEDED AN IFR CLRNC TO CONTINUE. I REQUESTED AND RECEIVED THE CLRNC. AMES, N OF DES MOINES, WAS VFR THEN. WITHIN A FEW MINUTES, DES MOINES WENT IFR, SO SINCE I WAS NOT FULLY PREPARED TO DO AN INSTRUMENT APCH, I ELECTED TO DO A 180 AND FLY BACK TO COMPLETELY VFR CONDITIONS TO EXECUTE A LNDG.
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.