NEWS RELEASE: 50 SW Completes DMSP Flight 13 Rupture Review

Officials from the 50th Space Wing have completed their operations review of the Defense Meteorological Satellite Program Flight 13 that was permanently shut down Feb. 3, 2015, precipitating a debris-causing event. The review determined there were no actions that could have been taken to prevent the incident. The mission is operated by the National Oceanic and Atmospheric Administration on behalf of the U.S. Air Force.

The review into the unexpected loss of this satellite determined a failure of the battery charger as the likely cause. Analysis indicates one of the wiring harnesses lost functionality due to compression over a long period of time in the battery charge assembly. Once the harness was compromised, the exposed wires potentially caused a short in the battery power, leading to an overcharge situation with eventual rupture of the batteries.
more…