ASN Wikibase Occurrence # 247900
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| Date: | Saturday 13 February 2021 |
| Time: | 11:10 |
| Type: |  AgustaWestland AW119MKII |
| Owner/operator: | Critical Care Services Inc DBA |
| Registration: | N352LL |
| MSN: | 14820 |
| Year of manufacture: | 2014 |
| Total airframe hrs: | 2631 hours |
| Engine model: | P&W Canada PT6B-37A |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Chandler Field Airport (AXN/KAXN), Alexandria, MN -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Ambulance |
| Departure airport: | Alexandria Airport, MN (AXN/KAXN) |
| Gleenwood, MN | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airline transport pilot of the commercial air medical flight reported that during a climbing left turn on departure, he heard a “thud.” He confirmed with the crew they had not dropped anything, and they affirmed they had not. The pilot believed the helicopter had hit something and elected to return to the departure airport. The pilot scanned the air to find what they could have impacted but did not see anything and then assumed a cowling had become unlatched due to the cold and vibration. He landed and left the helicopter running while the crew looked over the helicopter. At this time, the pilot was notified the trip was cancelled so he shut down, refueled, and moved the helicopter into the hangar. Once in the hangar, the pilot noticed the
leading edge of the main rotor blade was a dented with a hole through the blade just aft of the dent. What caused the substantial damage to the main rotor blade was not determined. The pilot reported there were no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
Probable Cause and Findings
The helicopter’s impact with an object on departure that could not be determined.
Accident investigation:
 |
|
Sources:
https://www.asias.faa.gov/apex/f?p=100:96:16642916136086::::P96_ENTRY_DATE,P96_MAKE_NAME,P96_FATAL_FLG:16-FEB-21,AGUSTA+WESTLAND
https://flightaware.com/live/flight/N352LL
https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=352LL
Location
Media:
#NTSB Preliminary: AW119MKII N352LL Air Ambulance #helicopter 13 Feb 2021: Main Rotor Blade Damage Under Investigation - Suggested #Drone Strike (tbd) https://t.co/Q8IlhCpM37 #flightsafety #aviationsafety #uas #rpas pic.twitter.com/2VQ9Yr8YbV
— Aerossurance (@Aerossurance) June 9, 2021
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 17-Feb-2021 02:11 | Geno | Added |
| 09-Jun-2021 19:44 | Aerossurance | Updated [Phase, Embed code, Narrative] |
| 20-Jul-2021 18:38 | harro | Updated [Destination airport, Embed code, Category] |
| 20-Jul-2021 18:39 | harro | Updated [Narrative, Accident report] |
Corrections or additions? ... Edit this accident description
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