Poor dissemination of information was judged to be a contributory factor in the 1983 Eastern Airlines accident. The NTSB accident report stated:
“On May 17, 1983, Eastern Air Lines issued a revised work card 7204 which stated the master chip detector installation procedures, including the fitment of O-ring seals. … The material was posted and all mechanics were expected to comply with the guidance. However, there was no accountability system in place to enable supervisors to ensure that all mechanics had seen the applicable training and procedural information.”