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Safety Recommendation Details

Safety Recommendation A-12-054
Details
Synopsis: On April 2, 2011, about 0934 mountain daylight time, an experimental Gulfstream Aerospace Corporation GVI (G650), N652GD, crashed during takeoff from runway 21 at Roswell International Air Center, Roswell, New Mexico. The two pilots and the two flight test engineers were fatally injured, and the airplane was substantially damaged by impact forces and a postcrash fire. The airplane was registered to and operated by Gulfstream as part of its G650 flight test program. The flight was conducted under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed at the time of the accident.
Recommendation: TO THE FEDERAL AVIATION ADMINISTRATION: Inform domestic and foreign manufacturers of airplanes that are certified under 14Code of Federal Regulations Parts 23 and 25 about the circumstances of this accident and advise them to consider, when estimating an airplane’s stall angle of attack in ground effect, the possibility that the airplane’s maximum lift coefficient in ground effect could be lower than its maximum lift coefficient in free air.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: Roswell, NM, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA11MA076
Accident Reports: Crash During Experimental Test Flight, Gulfstream Aerospace Corporation GVI (G650), N652GD
Report #: AAR-12-02
Accident Date: 4/2/2011
Issue Date: 10/23/2012
Date Closed: 3/26/2013
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: FAA
Date: 3/26/2013
Response: We reviewed a copy of Special Airworthiness Information Bulletin (SAIB) NM-13-12, “Awareness of NTSB Performance Study and Addendum,” which the FAA issued on December 27, 2012. Issuance of the SAIB completes the action recommended; consequently, Safety Recommendation A-12-54 is classified CLOSED—ACCEPTABLE ACTION.

From: FAA
To: NTSB
Date: 1/15/2013
Response: -From Michael P. Huerta, Administrator: The Federal Aviation Administration (FAA) agrees with the intent of this safety recommendation, and has disseminated the information contained in this recommendation to domestic manufacturers of part 23 and 25 airp lanes. We also advised foreign civil aviation authorities of this recommendation, and asked them to disseminate this information to manufacturers within their respective countries. I believe the FAA has effectively addressed this safety recommendation and consider our actions complete.