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A jetstream 41 encountered heavy icing at 13000 ft and after switching on engine anti-ice #1 engine ingested ice causing a short time loss of power.
| Attributes | |
| ACN | 393610 |
| Time | |
| Date | 199802 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : eno |
| State Reference | DE |
| Altitude | msl bound lower : 13000 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | Jetstream 41 |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 8000 flight time type : 1500 |
| ASRS Report | 393610 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical inflight encounter : weather other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : exited adverse environment |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
En route from iad to jfk, ATC did not advise us of any hazardous WX over eno at 13000 ft at night. We encountered heavy icing, continuous ignition was selected 'on/continuous.' engine/elevator ice protection was also selected on. The aircraft has an 'ice detector' warning which did not activate. An immediate descent was requested to ATC to include a heavy icing report. During the descent the left engine ingested ice and began negative torque signaling. At approximately 10000 ft we cleared the ice and during the descent the 'ice detect' warning activated, late. The flight continued to jfk with no further incident. Upon arrival I called maintenance to determine if any action needed to be done. Maintenance stated 'no action necessary,' the aircraft system worked as they were configured to. Dispatch was also notified of the hazardous WX.
Original NASA ASRS Text
Title: A JETSTREAM 41 ENCOUNTERED HVY ICING AT 13000 FT AND AFTER SWITCHING ON ENG ANTI-ICE #1 ENG INGESTED ICE CAUSING A SHORT TIME LOSS OF PWR.
Narrative: ENRTE FROM IAD TO JFK, ATC DID NOT ADVISE US OF ANY HAZARDOUS WX OVER ENO AT 13000 FT AT NIGHT. WE ENCOUNTERED HVY ICING, CONTINUOUS IGNITION WAS SELECTED 'ON/CONTINUOUS.' ENG/ELEVATOR ICE PROTECTION WAS ALSO SELECTED ON. THE ACFT HAS AN 'ICE DETECTOR' WARNING WHICH DID NOT ACTIVATE. AN IMMEDIATE DSCNT WAS REQUESTED TO ATC TO INCLUDE A HVY ICING RPT. DURING THE DSCNT THE L ENG INGESTED ICE AND BEGAN NEGATIVE TORQUE SIGNALING. AT APPROX 10000 FT WE CLRED THE ICE AND DURING THE DSCNT THE 'ICE DETECT' WARNING ACTIVATED, LATE. THE FLT CONTINUED TO JFK WITH NO FURTHER INCIDENT. UPON ARR I CALLED MAINT TO DETERMINE IF ANY ACTION NEEDED TO BE DONE. MAINT STATED 'NO ACTION NECESSARY,' THE ACFT SYS WORKED AS THEY WERE CONFIGURED TO. DISPATCH WAS ALSO NOTIFIED OF THE HAZARDOUS WX.
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.