Small aircraft's depart airport VFR into WX factor icing.

Attributes
ACN	230270
Time
Date	199301
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : lns
State Reference	PA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	ground : preflight
Flight Plan	None
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller military : 4 controller radar : 13
ASRS Report	230270
Person 2
Affiliation	government : faa
Function	oversight : supervisor
Qualification	controller : radar
Experience	controller non radar : 9 controller radar : 1 controller supervisory : 1
Events
Anomaly	inflight encounter other
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

Moderate clear ice was reported by several aircraft, all quadrants 3000 ft and below. Runway braking action was poor. Numerous light singles flew in with forecast for deteriorating conditions. Aircraft, VFR overflts reported moderate clear ice and accumulating, but continued, flts into areas reported. Several aircraft called for taxi, were advised of icing conditions and braking action. All departed. Some reported back to concur they were picking up moderate icing. This situation showed to me the continued poor judgement used by many GA pilots. These singles obviously did not have deice equipment. The PIREPS were on ATIS and reissued to aircraft prior to takeoff clearance. Supplemental information from acn 230266: numerous pilots departed lns VFR in known icing conditions. Tower advised the pilots of moderate clear icing reported by numerous aircraft WX at airport was 6000 ft overcast, 12 mi visibility with freezing light rain, temperature 32 degrees. Runway had thin ice with braking action reported fair to poor.

Original NASA ASRS Text

Title: SMA'S DEPART ARPT VFR INTO WX FACTOR ICING.

Narrative: MODERATE CLR ICE WAS RPTED BY SEVERAL ACFT, ALL QUADRANTS 3000 FT AND BELOW. RWY BRAKING ACTION WAS POOR. NUMEROUS LIGHT SINGLES FLEW IN WITH FORECAST FOR DETERIORATING CONDITIONS. ACFT, VFR OVERFLTS RPTED MODERATE CLR ICE AND ACCUMULATING, BUT CONTINUED, FLTS INTO AREAS RPTED. SEVERAL ACFT CALLED FOR TAXI, WERE ADVISED OF ICING CONDITIONS AND BRAKING ACTION. ALL DEPARTED. SOME RPTED BACK TO CONCUR THEY WERE PICKING UP MODERATE ICING. THIS SITUATION SHOWED TO ME THE CONTINUED POOR JUDGEMENT USED BY MANY GA PLTS. THESE SINGLES OBVIOUSLY DID NOT HAVE DEICE EQUIP. THE PIREPS WERE ON ATIS AND REISSUED TO ACFT PRIOR TO TKOF CLRNC. SUPPLEMENTAL INFO FROM ACN 230266: NUMEROUS PLTS DEPARTED LNS VFR IN KNOWN ICING CONDITIONS. TWR ADVISED THE PLTS OF MODERATE CLR ICING RPTED BY NUMEROUS ACFT WX AT ARPT WAS 6000 FT OVCST, 12 MI VISIBILITY WITH FREEZING LIGHT RAIN, TEMP 32 DEGS. RWY HAD THIN ICE WITH BRAKING ACTION RPTED FAIR TO POOR.

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.