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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Flight crew of a jetstream BA32 declared an emergency during departure climb after encountering heavy ice at 7000 ft, and the aircraft started vibrating. Since ATC was unable to provide a higher altitude, a return land was made. The aircraft stopped vibrating when the ice fell off. However, the aircraft exceeded maximum landing weight and the reporter did not write it in the aircraft log as required.
| Attributes | |
| ACN | 387762 |
| Time | |
| Date | 199712 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Altitude | msl bound lower : 7000 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : stl tower : stl |
| Operator | common carrier : air carrier |
| Make Model Name | Jetstream 32 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | cruise other other other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | other other : other pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 8000 flight time type : 3800 |
| ASRS Report | 387762 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | inflight encounter : weather non adherence : far non adherence other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency flight crew : exited adverse environment other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Left stl, ATC leveled us off at 7000 ft. Heavy ice was encountered and requested our climb from ATC, but they were unable at that time. Aircraft started vibrating. Declared emergency and returned to stl. As ice melted off aircraft during descent, vibrating stopped. I talked to our maintenance people about a possible overweight landing by 100 pounds. I did not write this up in log can because they informed me it would be taken care of and they would make the write-up. I found out later it was not written up. I was ready to write it up and maintenance talked me out of it. Aircraft went to hangar for the inspection. I should not have trusted them in saying they would make the write-up.
Original NASA ASRS Text
Title: FLC OF A JETSTREAM BA32 DECLARED AN EMER DURING DEP CLB AFTER ENCOUNTERING HVY ICE AT 7000 FT, AND THE ACFT STARTED VIBRATING. SINCE ATC WAS UNABLE TO PROVIDE A HIGHER ALT, A RETURN LAND WAS MADE. THE ACFT STOPPED VIBRATING WHEN THE ICE FELL OFF. HOWEVER, THE ACFT EXCEEDED MAX LNDG WT AND THE RPTR DID NOT WRITE IT IN THE ACFT LOG AS REQUIRED.
Narrative: LEFT STL, ATC LEVELED US OFF AT 7000 FT. HVY ICE WAS ENCOUNTERED AND REQUESTED OUR CLB FROM ATC, BUT THEY WERE UNABLE AT THAT TIME. ACFT STARTED VIBRATING. DECLARED EMER AND RETURNED TO STL. AS ICE MELTED OFF ACFT DURING DSCNT, VIBRATING STOPPED. I TALKED TO OUR MAINT PEOPLE ABOUT A POSSIBLE OVERWT LNDG BY 100 LBS. I DID NOT WRITE THIS UP IN LOG CAN BECAUSE THEY INFORMED ME IT WOULD BE TAKEN CARE OF AND THEY WOULD MAKE THE WRITE-UP. I FOUND OUT LATER IT WAS NOT WRITTEN UP. I WAS READY TO WRITE IT UP AND MAINT TALKED ME OUT OF IT. ACFT WENT TO HANGAR FOR THE INSPECTION. I SHOULD NOT HAVE TRUSTED THEM IN SAYING THEY WOULD MAKE THE WRITE-UP.
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.