I'm at bar '75 in Singapore https://t.co/PcqQGbuyUH
East Region
[{'url': 'https://t.co/PcqQGbuyUH', 'expanded_url': 'https://www.swarmapp.com/c/adKWOY3MBfU', 'display_url': 'swarmapp.com/c/adKWOY3MBfU', 'indices': [28, 51]}]
CHANGI AIRPORT
["i'm", 'bar', '75', 'singapore', 'https://t.co/pcqqgbuyuh']
[]
bar 75 singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post "bar 75 singapore" does not relate to a maintenance report feedback to a public flat house. It is not clear what the post refers to, as it does not provide any context or information that would suggest otherwise. Therefore, the answer is that the post does not relate to a maintenance report feedback to public flat house.