NASA-LLIS-1185

Abstract

<strong>Description of Driving Event:</strong> <br>On August 26, 1991 a 2.75 inch Folding Fin Aircraft Rocket (FFAR) with a French Payload aboard was being prepared for launch at the Rocket Triggered Lightning Site (RTLS), KSC. Preparations were in process using Procedure Rocket Triggered Lightning Project (RTLP) Technical Operating Procedure (TOPS) 2 Rev B dated 8/20/91. Two French scientists/engineers were working on the rocket making the final payload adjustments. One French scientist was standing on the launcher assembly checking the lanyard connector, which disables the field mil motors. It was at this time that the rocket motor inadvertently ignited and launched. The time was approximately 1:11 p. m. EDT. The rocket exhaust and flame was deflected by the concrete launch pad into the left pant leg of the flame retardant white cotton coveralls reportedly causing first and second degree burns from the ankle to the knee on the shin area. Injured person was transported to Jess Parrish Hospital in Titusville, FL, was treated and released, and later returned to the launch site. <br>The payload and rocket are not intended for recovery; however, since no data was retrieved, the launch was a total loss. Attempts to recover the payload for investigation were unsuccessful. The investigation team reviewed the RTLS operation procedures and witness statements. Key personnel from the RTLS and U.S. Air Force personnel working at the site were interviewed. In addition, the team consulted various people with expertise on the 2.75 inch FFAR, including personnel at NASA Wallops Flight Facility. Laboratory support was provided by the Materials Science Laboratory (MSL) personnel and KSC Electromagnetic Analysis (EMA) Group.