IndiGo takes off altitude restriction from A320neo

IndiGo has removed the restriction on altitude for its Airbus A320neo fleet, despite persistent teething problems. The move comes after engine manufacturer Pratt & Whitney informed the airlines that the restriction on altitude won’t increase the durability of the air seal around the No 3 bearing compartment.

Footage from flight tracker website Flightradar24 showed that GoAir, the other Indian airline which operates A320neos, was still adhering to the altitude restriction.

In a notification to pilots, which was reviewed by Business Standard, Indigo said, “From September 1, planning of cruising flight levels will be as earlier on performance, environmental and other common factors irrespective of the engine type IAE, CFM or NEO up to Airbus limits as per flight command.”

Sources familiar with the situation said the altitude restriction did not solve the problem. “Pratt and Whitney told us that flying at lower altitude is not a solution,” an airline official said.

Flying at lower altitude consumes more fuel.

A Pratt & Whitney spokesperson said they were telling airlines there was no requirement to change flight altitude. "This recommendation was intended to address component durability related to the No 3 seal. Since March, new engines and overhauled engines have incorporated improvements that have enhanced the engine’s durability," the spokesperson added.