New Delhi, Aug. 6 -- Air India is planning to bring some aircraft maintenance services in-house by leaning on shareholder Singapore Airlines (SIA) instead of outsourcing them to state-owned AI Engineering Services Ltd. (AIESL).

This shift follows a fatal crash in June - the cause of which remains unknown, a sector-wide safety audit and a temporary safety-related pause in service, a Bloomberg report said.

The move to gain control of maintenance services was a part of Air India's transformation plan even before the plane crash. The plan had been delayed to focus on other priorities, such as increasing flight frequency and improving passenger experience, Bloomberg reported.

However, the June crash of flight AI 171 in Ahmedabad, which kill...