NTSB has recommended 9 fixes for Metro as a result of the June accident that claimed the lives of 9 people. It’s not clear what the recommendations encompass yet, but it’s reported that the NTSB has sent letters to Metro and Alstom Signaling, who makes the parts for the train presence signaling system.
Update, 6:15pm: WTOP has more details of the 9 recommendations, which include six that are marked as Urgent.
Update, 6:18: We’ve found a copy of the letter (PDF) that gives WMATA 30 days to respond to the contents.
Update, 6:23: The letter on the NTSB website is actually only one recommendation to the Alstom Signaling, Inc, the company who acquired General Railway Signal, the original manufacturer of the WEE-Z system used to sense trains on the track and which seems to have been decided as the underlying cause of the June collision. We’ll have some analysis of this later and will continue looking for the WMATA recommendations.