In the wake of coronavirus-induced lockdown, the Indian aviation regulator has extended the deadline for IndiGo and GoAir to replace unmodified Pratt and Whitney (PW) engines on their A320neo planes by three months to August 31.
The deadline to replace unmodified engines on their airbus 320 Neo had expired on May 31. The Directorate General of Civil Aviation (DGCA), on Monday, said that both IndiGo and GoAir can replace all unmodified P&W engines in their A320 neo planes with new series of engines by August 31.
This is the second extension of this deadline. Earlier, the aviation regulator had extended the deadline to May 31 from January 31.
A senior official at DGCA said that due to disruption in supply chains and production lines amid coronavirus-triggered lockdown, the regulator decided to extend the deadline.
However, the DGCA has tentatively allowed the airlines to fly those aircraft that have modified engines. "This should not be difficult as the curtailed operations are likely to last for some more time," a senior official at DGCA said.
IndiGo and GoAir's P&W engine-powered A320 neo planes have been facing glitches over the past few months causing large-scale flight disruptions affecting thousands of passengers and raising safety concerns. Subsequently, the DGCA warned IndiGo to modify the glitch-prone older PW engines on A320neo aircraft. The Indian civil aviation regulator had intervened after four incidents of technical snags involving P&W-powered A320neo planes operated by IndiGo in October. The major glitches due to unmodified PW engines are-Low-Pressure Turbine (LPT), Gear Box errors and engine vibration.
In January, IndiGo was asked to replace 135 engines by the aviation regulatory body. So far, the airline has placed at least one modified engine in each of its P&W powered A320neo aircraft in its fleet. Each aircraft has two engines. As a result, the DGCA had asked IndiGo and GoAir, the two airlines which operate on Pratt & Whitney A320neo in India, to replace both engines of these aircraft.