Failure investigation, multiple grenade launching

Abstract

This memo presents the results of the simultaneous grenade launching failure investigation. The failure investigation includes tests made in the field at El Mirage, California, laboratory tests made at BxA to determine the exact cause, and tests made to verify the effectiveness of corrective action implemented. The grenade launch assembly (GLA) was part of the Active Seismic Experiment on Apollo 14 and Apollo 16.