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A P180 engine was shutdown after takeoff due to over torquing and ATC did not comprehend the emergency situation; communications broke down when the crew deviated from their clearance to return to the airport.
| Attributes | |
| ACN | 974123 |
| Time | |
| Date | 201110 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | P180 Avanti |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 120 Flight Crew Total 6500 Flight Crew Type 2400 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
Around 4;000 ft MSL [climbing] on a 310 degree heading; the right engine had to be shutdown due to uncontrolled over torquing. ATC was then advised and crew started a turn back to the airport. ATC did not understand the first time the situation [was] going on; and gave a frequency change to departure. The crew was heading back to the airport and last assigned altitude and heading were not maintained anymore (due to emergency). After two calls to tower the situation was resolved and tower gave us immediate clearance back to runway 4. Crew landed safely; cleared the runway and was given ok clearance to parking by ground control. During taxi; emergency vehicles were blocking communication with ground control. 100 yards before reaching parking; ground told us to stop. After the frequency cleared up; we were told to contact emergency vehicles to verify that we were able to taxi on our own (which we had been doing). We finished taxiing with a second clearance from ground. From beginning to end it was an ATC confusion.
Original NASA ASRS Text
Title: A P180 engine was shutdown after takeoff due to over torquing and ATC did not comprehend the emergency situation; communications broke down when the crew deviated from their clearance to return to the airport.
Narrative: Around 4;000 FT MSL [climbing] on a 310 degree heading; the right engine had to be shutdown due to uncontrolled over torquing. ATC was then advised and crew started a turn back to the airport. ATC did not understand the first time the situation [was] going on; and gave a frequency change to Departure. The crew was heading back to the airport and last assigned altitude and heading were not maintained anymore (due to emergency). After two calls to Tower the situation was resolved and Tower gave us immediate clearance back to Runway 4. Crew landed safely; cleared the runway and was given OK clearance to parking by Ground Control. During taxi; emergency vehicles were blocking communication with Ground Control. 100 yards before reaching parking; Ground told us to stop. After the frequency cleared up; we were told to contact emergency vehicles to verify that we were able to taxi on our own (which we had been doing). We finished taxiing with a second clearance from Ground. From beginning to end it was an ATC confusion.
Data retrieved from NASA's ASRS site as of April 2012 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.