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Safety Recommendation Details

Safety Recommendation A-18-021
Details
Synopsis: On April 28, 2017, about 2348 central daylight time (CDT), a Pilatus PC-12 airplane impacted terrain near AMA shortly after takeoff. The airline transport pilot and two flight crewmembers were fatally injured, and the airplane was destroyed. The airplane was registered to and operated by Rico Aviation LLC, under the provisions of Title 14 Code of Federal Regulations Part 135 as an air ambulance flight. The flight, which was operating on an instrument flight rules flight plan, was originating at the time of the accident and was en route to Clovis Municipal Airport, Clovis, New Mexico. The flight was cleared for takeoff about 2344, and the pilot reported to the AMA air traffic control (ATC) tower at 6,000 ft above mean sea level (msl) about 2347. About 2348, the transponder signal was lost; shortly after, a fireball was observed south of the airport.
Recommendation: TO THE NATIONAL WEATHER SERVICE: Revise National Weather Service Instruction 10-811 to include guidance on the issuance of airmen’s meteorological information advisories and other products that advise of nonconvective turbulence hazards when convective significant meteorological information advisories are active, or may be issued, in the same region.
Original recommendation transmittal letter: PDF
Overall Status: Open - Initial Response Received
Mode: Aviation
Location: Amarillo, TX, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: CEN17FA168
Accident Reports: Safety Recommendation Report: Guidance on the Issuance of Turbulence Products and Training for Low-Level Turbulence Identification and Forecasting for National Weather Service Forecasters
Report #: ASR-18-03
Accident Date: 4/28/2017
Issue Date: 8/8/2018
Date Closed:
Addressee(s) and Addressee Status: United States Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service (Open - Initial Response Received)
Keyword(s):

Safety Recommendation History
From: United States Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service
To: NTSB
Date: 6/20/2019
Response: -From John D. Murphy, Chief Operating Officer, NOAA National Weather Service: The NWS is committed to creating more consistent guidance for forecasters to follow when low-level turbulence hazards are in close proximity to Convective Significant Meteorological Information (SIGMET) areas. Consistent with the FAA AC 00-45 series, any Convective SIGMET implies severe or greater turbulence, severe icing, and low-level windshear. The NWS issues Convective SIGMETs for those aviation weather hazards directly associated with convection and, when necessary, issues SIGMETs or Airmen’s Meteorological Information (AIRMETs) for turbulence areas not associated with convection. The AWC is currently training forecasters on techniques to assess and collaborate on convective and non-convective weather hazards occurring in the same region. As training continues, work will begin to update AWC policy for collaboration on Convective and Non-convective hazards to be included in the AWC Forecast Operations documentation. Target completion for this documentation update will be the end of FY19. Once complete, the AWC will work with the Aviation and Space Weather Services Branch (AFS24) at NWS headquarters to revise NWS Instruction 10-811 to reflect these techniques. Target completion of this revision will be March 2020.

From: NTSB
To: United States Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service
Date: 8/8/2018
Response: The National Transportation Safety Board (NTSB) is an independent federal agency charged by Congress with investigating every civil aviation accident in the United States and significant accidents in other modes of transportation—railroad, highway, marine, and pipeline. We determine the probable cause of the accidents and issue safety recommendations aimed at preventing future accidents. In addition, we carry out special studies concerning transportation safety and coordinate the resources of the federal government and other organizations to provide assistance to victims and their family members affected by major transportation disasters. On August 2, 2018, the NTSB adopted its safety recommendation report, “Guidance on the Issuance of Turbulence Products and Training for Low-Level Turbulence Identification and Forecasting for National Weather Service Forecasters” (ASR-18/03). The details of the related accident investigation and the resulting safety recommendations may be found in the attached report, which can also be accessed at http://www.ntsb.gov. Two safety recommendations are issued to the National Weather Service, which can be found on page 6 of the report. The NTSB is vitally interested in these recommendations because they are designed to prevent accidents and save lives. We would appreciate a response within 90 days, detailing the actions you have taken or intend to take to implement the recommendations. When replying, please refer to the safety recommendations by number. We encourage you to submit your response to correspondence@ntsb.gov. If it exceeds 20 megabytes, including attachments, please e-mail us at the same address for instructions. Please do not submit both an electronic copy and a hard copy of the same response.