Did any plane ever get critically low on fuel without the crew telling someone?
What about Avianca Flight 52, in 1990? The crew did advise but I don't believe they declared an emergency and the aircraft went down
Avianca Flight 52 - The Delays That Ended in Disaster - NYTimes.com Avianca Flight 52 - Wikipedia, the free encyclopedia. Not sure of any others; stand to be corrected.