Small transport pilot encounters icing at 700 ft AGL on approach. Off airport landing.

Attributes
ACN	196529
Time
Date	199112
Day	Mon
Local Time Of Day	0001 To 0600
Place
Locale Reference	atc facility : mnz airport : t21
State Reference	TX
Altitude	agl bound lower : 700 agl bound upper : 700
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : grk
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : flight engineer pilot : atp pilot : cfi
Experience	flight time last 90 days : 246 flight time total : 31000 flight time type : 2600
ASRS Report	196529
Events
Anomaly	inflight encounter : weather other anomaly other other spatial deviation
Independent Detector	other other : unspecified cockpit
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

Flew into super cool water. Froze on airplane unable to maintain altitude because of the ice. Cause: unknown temperature and heavy rain that was super cool. Callback conversation with reporter revealed the following information. Reporter states he was at 700 ft on downwind of NDB circle approach when ice was encountered. Strange WX phenomena existed. Inversion layer with freezing level at 6000 ft, then a warming on descent and zap into the super cool rain at 700 ft with surface temperature of 36 degree. Ice formed on top of leading edge and destroyed lift. Could not make the airport even though so close. Caught and sheared wing on telephone pole on the landing. Reporter uses his small transport to commute to work as air carrier pilot. He thought he had experienced everything in unusual WX until this incident.

Original NASA ASRS Text

Title: SMT PLT ENCOUNTERS ICING AT 700 FT AGL ON APCH. OFF ARPT LNDG.

Narrative: FLEW INTO SUPER COOL WATER. FROZE ON AIRPLANE UNABLE TO MAINTAIN ALT BECAUSE OF THE ICE. CAUSE: UNKNOWN TEMP AND HVY RAIN THAT WAS SUPER COOL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO. RPTR STATES HE WAS AT 700 FT ON DOWNWIND OF NDB CIRCLE APCH WHEN ICE WAS ENCOUNTERED. STRANGE WX PHENOMENA EXISTED. INVERSION LAYER WITH FREEZING LEVEL AT 6000 FT, THEN A WARMING ON DSCNT AND ZAP INTO THE SUPER COOL RAIN AT 700 FT WITH SURFACE TEMP OF 36 DEG. ICE FORMED ON TOP OF LEADING EDGE AND DESTROYED LIFT. COULD NOT MAKE THE ARPT EVEN THOUGH SO CLOSE. CAUGHT AND SHEARED WING ON TELEPHONE POLE ON THE LNDG. RPTR USES HIS SMT TO COMMUTE TO WORK AS ACR PLT. HE THOUGHT HE HAD EXPERIENCED EVERYTHING IN UNUSUAL WX UNTIL THIS INCIDENT.

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.