VFR pilot departing osh after airshow climbed through clouds.

Attributes
ACN	589932
Time
Date	200308
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : osh.airport
State Reference	WI
Altitude	agl single value : 500
Environment
Flight Conditions	Marginal
Aircraft 1
Controlling Facilities	tower : osh.tower
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff climbout : initial
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 30 flight time total : 2900 flight time type : 2500
ASRS Report	589932
Person 2
Affiliation	other
Function	controller : local
Events
Anomaly	inflight encounter : vfr in imc inflight encounter : weather non adherence : far non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited adverse environment
Supplementary
Problem Areas	Flight Crew Human Performance Weather Environmental Factor ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Departed VFR runway 27 osh special VFR procedures. ATIS reported VFR conditions. Actual conditions no better than 600 ft ceiling, visibility 4 in mist. Unable to maintain clearance with known obstructions and rising terrain to west and south, I climbed through thin overcast to VFR conditions and proceeded to msn VFR, landed, and filed an IFR flight plan to my en route destination. I feel that osh/FAA was too eager to declare VFR when, in fact, conditions were significantly below VFR. Hundreds of planes launched into these conditions with FAA blessing.

Original NASA ASRS Text

Title: VFR PLT DEPARTING OSH AFTER AIRSHOW CLBED THROUGH CLOUDS.

Narrative: DEPARTED VFR RWY 27 OSH SPECIAL VFR PROCS. ATIS RPTED VFR CONDITIONS. ACTUAL CONDITIONS NO BETTER THAN 600 FT CEILING, VISIBILITY 4 IN MIST. UNABLE TO MAINTAIN CLRNC WITH KNOWN OBSTRUCTIONS AND RISING TERRAIN TO W AND S, I CLBED THROUGH THIN OVCST TO VFR CONDITIONS AND PROCEEDED TO MSN VFR, LANDED, AND FILED AN IFR FLT PLAN TO MY ENRTE DEST. I FEEL THAT OSH/FAA WAS TOO EAGER TO DECLARE VFR WHEN, IN FACT, CONDITIONS WERE SIGNIFICANTLY BELOW VFR. HUNDREDS OF PLANES LAUNCHED INTO THESE CONDITIONS WITH FAA BLESSING.

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.