To limit error, confirms flight (6,2)

I believe the answer is:

checks in

'confirms flight' is the definition.
(as in checking in at an airport)

'to limit error' is the wordplay.
'to limit' becomes 'check' (synonyms).
'error' becomes 'sin' (a sin is a moral error).
'check'+'sin'='CHECKS IN'

(Another definition for checks in that I've seen is " Chickens (anag)".)

I've seen this clue in The Times.

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