Analysis of damaged components from DOE security helicopter N7EG

Technical Report · Mon Nov 06 00:00:00 EST 1989

OSTI ID:5782467

Witherell, C E

Initial contact with the writer at Lawrence Livermore National Laboratory (LLNL) was made on October 16, 1989 through a telephone call by Frank Reilly, Accident Investigator with the EG G Energy Measurements organization in Las Vegas, Nevada. This subsequently led to shipment to Livermore of the damaged searchlight components, together with several photographs showing views of the damaged searchlight and its attachment locations on the helicopter. Photographs of an intact and undamaged searchlight assembly in various positions mounted on an operating helicopter were also supplied. The damaged parts were shipped under EG G Shipping Order No. 78931 on October 19th with a covering letter by Frank Reilly dated October 18th. The shipment included two major sub-assemblies: (a) the searchlight body, and (b) its supporting yoke. Accompanying these were several fractured screw-heads and two fractured steel tubes. The objectives of the LLNL investigation, as stated in the covering letter, were to conduct an {hor ellipsis}analysis of the broken brackets, screws, and other apparatus{hor ellipsis}to assist{hor ellipsis}in establishing a failure mode of the{hor ellipsis}assembly{hor ellipsis}.'' 14 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5782467
• Report Number(s): UCID-21898; ON: DE90004488
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ACCIDENTS
INVESTIGATIONS
AIRCRAFT COMPONENTS
DAMAGE
HELICOPTERS
SECURITY
DESIGN
RECOMMENDATIONS
TECHNOLOGY ASSESSMENT
US DOE
ADMINISTRATIVE PROCEDURES
AIRCRAFT
NATIONAL ORGANIZATIONS
US ORGANIZATIONS
320201* - Energy Conservation
Consumption
& Utilization- Transportation- Air & Aerospace