The operating crew of airlines has declared emergency in 23 flights from January 2020 till now.The Ministry of Civil Aviation in a written reply in the Lok Sabha on Thursday said that in 19 cases, after the landing of the aircraft, the affected components were replaced. Three emergency landings resulted from weather diversion, and one emergency landing was due to bird hit.Such occurrences were thoroughly analysed and their severity was determined. Based on the severity, occurrences were investigated. No violation has been found in these occurrences, said the Ministry.As per the Ministry’s information, Indigo airline’s planes observed 11 instances of emergency landing while SpiceJet planes observed four such instances from January 2020 till now. Similarly, Air India observed two such incidents while AirAsia observed one emergency landing in the given period.