A week and a half after a mysterious event left the entire 70-man crew of the Chinese Ming-class submarine No. 361 dead at their posts, the stricken vessel was spotted by fishermen and towed to shore. The official explanation for the disaster is that the crew suffocated when diesel engines failed to shut down while the vessel was submerged. What had allowed the crippled submarine to drift for over a week without raising concern? Discuss
Source: The Free Dictionary