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Small aircraft flying in drizzle just below clouds with temperature of 1 degree C encounters airframe ice.
| Attributes | |
| ACN | 353102 |
| Time | |
| Date | 199611 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lnk |
| State Reference | NE |
| Altitude | msl bound lower : 2900 msl bound upper : 2900 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : lnk |
| Operator | general aviation : instructional |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor |
| Qualification | pilot : flight engineer pilot : instrument pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 300 flight time total : 1900 flight time type : 500 |
| ASRS Report | 353102 |
| Person 2 | |
| Affiliation | Other |
| Function | instruction : trainee oversight : pic |
| Events | |
| Anomaly | inflight encounter : weather inflight encounter other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : exited adverse environment |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | other |
Narrative:
During preflight, checked WX. Temperatures were +1 degree C, ceilings during preflight reported higher than 3000 ft MSL, no ice or freezing drizzle, no reported ice (aircraft were taking off). Before takeoff, aircraft reported icing in the clouds but none below. Decided to take off and stay below clouds, so maintained 3000 ft and below (MSL). As we flew further north of airport, began to pick up a trace of ice under the clouds so decided to go into airport for full stop. On descent ice dissipated and still no report of any freezing drizzle. Icing was only reported in clouds. We were out of clouds the entire time as we were just under them. No icing under clouds was reported.
Original NASA ASRS Text
Title: SMA FLYING IN DRIZZLE JUST BELOW CLOUDS WITH TEMP OF 1 DEG C ENCOUNTERS AIRFRAME ICE.
Narrative: DURING PREFLT, CHKED WX. TEMPS WERE +1 DEG C, CEILINGS DURING PREFLT RPTED HIGHER THAN 3000 FT MSL, NO ICE OR FREEZING DRIZZLE, NO RPTED ICE (ACFT WERE TAKING OFF). BEFORE TKOF, ACFT RPTED ICING IN THE CLOUDS BUT NONE BELOW. DECIDED TO TAKE OFF AND STAY BELOW CLOUDS, SO MAINTAINED 3000 FT AND BELOW (MSL). AS WE FLEW FURTHER N OF ARPT, BEGAN TO PICK UP A TRACE OF ICE UNDER THE CLOUDS SO DECIDED TO GO INTO ARPT FOR FULL STOP. ON DSCNT ICE DISSIPATED AND STILL NO RPT OF ANY FREEZING DRIZZLE. ICING WAS ONLY RPTED IN CLOUDS. WE WERE OUT OF CLOUDS THE ENTIRE TIME AS WE WERE JUST UNDER THEM. NO ICING UNDER CLOUDS WAS RPTED.
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.