Go First (GOW, Mumbai International) aircraft have experienced a number of incidents in recent days enough to warrant inspections from India’s Directorate General of Civil Aviation (DGCA), local media reported. The authority currently has its hands full investigating engine problems and safety lapses at many of the country’s airlines.

Engine problems affected two of the budget carrier’s A320-200Ns in separate incidents on the same day, July 19. One of them, flying from Mumbai International to Leh Kushok Bakula Rimpochee, was diverted to Delhi International due to a fault in the engine interface unit, and the second involved a Delhi-bound flight forced to turn back to Srinagar, Business Standard reported.

“We are investigating the incidents. Both aircraft will be grounded and will fly only after clearance from the DGCA,” an unnamed executive at the airline told the newspaper.

Go First’s Airbus A320neo are powered by Pratt & Whitney PW1000 geared turbofan engines, according to the ch-aviation fleets module. The airline operates an all-leased fleet of fifty-two A320-200Ns and five A320-200. Eighteen of the neo are currently inactive as most await delivery of engine upgrades.

Go First said in a statement at the time that “maintaining the reliability of aircraft and maintaining the safety of our passengers is our top priority.”

On July 18, it was reported that in the wake of multiple incidents on passenger aircraft in recent weeks, the DGCA had conducted spot checks at various airports and found a lack of qualified maintenance engineers certified to clear aircraft for flight operations. The cause of defects was not being properly identified, and airlines were frequently giving one-off authorisations to junior-ranking engineers, it discovered.

Earlier this month, it gave SpiceJet three weeks to defend itself against regulatory action following a string of safety failures. On July 15, an IndiGo Airlines A320-200 flying from Delhi to Vadodara was diverted to Jaipur due to engine vibration, and two days later its Sharjah-Hyderabad International flight was diverted to Karachi International also due to an engine defect.

On July 15, a live bird was found in the cockpit of an Air India Express jet during a Bahrain International-Kochi International flight, and on July 16, its Kozhikode-Dubai International flight was diverted to Muscat after the smell of burning was detected. The DGCA is currently investigating all of these incidents.