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Safety Recommendation Details

Safety Recommendation A-15-032
Details
Synopsis: On May 31, 2014, about 2140 eastern daylight time, a Gulfstream Aerospace Corporation G-IV, N121JM, registered to SK Travel, LLC, and operated by Arizin Ventures, LLC, crashed after it overran the end of runway 11 during a rejected takeoff at Laurence G. Hanscom Field (BED), Bedford, Massachusetts. The airplane rolled through the paved overrun area and across a grassy area, collided with approach lights and a localizer antenna, passed through the airport’s perimeter fence, and came to a stop in a ravine. The two pilots, a flight attendant, and four passengers died. The airplane was destroyed by impact forces and a postcrash fire. The corporate flight, which was destined for Atlantic City International Airport, Atlantic City, New Jersey, was conducted under the provisions of 14 Code of Federal Regulations (CFR) Part 91. An instrument flight rules flight plan was filed. Night visual meteorological conditions prevailed at the time of the accident. The NTSB determines that the probable cause of this accident was the flight crewmembers’ failure to perform the flight control check before takeoff, their attempt to take off with the gust lock system engaged, and their delayed execution of a rejected takeoff after they became aware that the controls were locked. Contributing to the accident were the flight crew’s habitual noncompliance with checklists, Gulfstream Aerospace Corporation’s failure to ensure that the G-IV gust lock/throttle lever interlock system would prevent an attempted takeoff with the gust lock engaged, and the Federal Aviation Administration’s failure to detect this inadequacy during the G-IV’s certification.
Recommendation: TO THE FEDERAL AVIATION ADMINISTRATION: Develop and issue guidance on the appropriate use and limitations of the review of engineering drawings in a design review performed as a means of showing compliance with certification regulations.
Original recommendation transmittal letter: PDF
Overall Status: Open - Acceptable Response
Mode: Aviation
Location: Bedford, MA, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: ERA14MA271
Accident Reports: ​Crash on takeoff of Gulfstream Aerospace Corporation G-IVRunway Overrun During Rejected Takeoff, Gulfstream Aerospace Corporation G-IV, N121JM
Report #: AAR-15-03
Accident Date: 5/31/2014
Issue Date: 9/24/2015
Date Closed:
Addressee(s) and Addressee Status: FAA (Open - Acceptable Response)
Keyword(s):

Safety Recommendation History
From: NTSB
To: FAA
Date: 8/23/2017
Response: We agree with your determination that a revision to Advisory Circular (AC) 21-51, “Applicant’s Showing of Compliance and Certifying Statement of Compliance,” will satisfy this recommendation, and we note that you are currently revising that AC. Pending issuance of a revised AC that addresses the issue in Safety Recommendation A-15-32, it remains classified OPEN--ACCEPTABLE RESPONSE.

From: FAA
To: NTSB
Date: 7/10/2017
Response: -From Michael P. Huerta, Administrator: As stated in our letter dated December 9, 2015, the Federal Aviation Administration (FAA) provides generic guidance materials concerning various means of showing compliance in FAA Order 8110.4C, Type Certification, Advisory Circular (AC) 21 -40A, Guide for Obtaining a Supplemental Type Certificate, and AC 21-51 , Applicant' s Showing of Compliance and Certifying Statement of Compliance. The FAA agrees that more specific guidance about the appropriate use and limitations of showing compliance to airworthiness standards may add safety value to the certification process. After a thorough review of all published guidance materials related to the certification process, it was determined that a revision to AC 21 -51 is the most appropriate course of action to address this safety recommendation. As a result, the FAA is revising AC 21-51 to provide better guidance on the intended meaning of language used in 14 CFR 21.20. The FAA Office of the Chief Counsel has directed issuance of a technical amendment to§ 21.20 to permit different treatment of domestic and foreign applicants that is consistent with FAA 's strategic Global Leadership Initiative. The AC is expected to enter internal coordination and review by September 20 17. The targeted publication date is September 2018. I will keep the Board informed of the FAA's progress on these recommendations and provide an update by October 31, 2018.

From: NTSB
To: FAA
Date: 3/15/2016
Response: We note that, after you have completed your review of existing guidance, you intend to develop specific guidance about appropriate use and limitations of different means of showing compliance to airworthiness standards. Pending the development and issuance of the recommended guidance, Safety Recommendation A-15-32 is classified OPEN—ACCEPTABLE RESPONSE.

From: FAA
To: NTSB
Date: 12/9/2015
Response: -From Michael P. Huerta, Administrator: The FAA currently provides generic guidance materials concerning various means of showing compliance in publications, such as FAA Order 811 0.4C, Type Certification, Advisory Circular (AC) 21 -40A, Guide for Obtaining a Supplemental Type Certificate, and AC 21-51, Applicants Showing Compliance and Certifying Statement of Compliance. We agree that more specific guidance about appropriate use and limitations of different means of showing compliance to airworthiness standards may add safety value to the certification process. We will perform a thorough review of all published guidance materials and determine areas where more specific guidance would be most appropriate by the end of the September 2016. I will keep the Board informed of the FAA's progress on these recommendations and provide an update by December 2016.