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Published: Thu, February 15, 2018
Culture | By Antonia Gonzales

Pratt Expects A320neo Engine Proposal This Week

Pratt Expects A320neo Engine Proposal This Week

Airbus brought the issue to the European aviation agency's attention, a spokesperson said, and the company has outlined safety recommendations for airlines until Pratt & Whitney can fix or replace the engines.

"And, of course, we successfully implemented the engine improvements that we promised to customers in 2017", he said.

"A cornerstone in UTC's ability to consistently generate positive earnings growth remains its ability to ramp up production of its GTF engine, which could be constrained until the latest defect on several of its most recently produced GTF engines is able to be resolved", Heymann said.

This is the second problem affecting Pratt & Whitney GTF engines since the start of their marketing, the first causing delays in 2017 in delivery of the A320neo, the re-engined version of Airbus' single-aisle plane.

IndiGo has withdrawn three A320 neo aircraft from service effective from February 9, 2018.

There are 43 affected engines in use and another 55 that have been delivered to Airbus awaiting installation, Pratt said Monday.

"Pratt & Whitney is working with Airbus to implement the remediation plans set forth in its all operator transmission".

In a statement, Airbus said it had informed the airline customers affected by the issue.

Airbus says around one-third of the in-service fleet of A320neos and A321neos has those engines installed so far, 11 of which are understood to have all two engines of the problematic standard and 21 just one of them.

Earlier overheating problems on the Pratt engines have interfered with A320neo deliveries since early previous year.

Pratt & Whitney, in coordination with Airbus, will present to regulatory authorities this week a proposed mitigation plan for the modified configuration, it said.

This problem follows a series of performance issues related to the engine's combustion chamber and carbon seal for one of the bearings witnessed for the said model over the last two years, during which, according to the civil aviation ministry, there were 69 engine removals and replacements for 23 aircraft operated by IndiGo, which is the largest A320neo customer for Airbus in the world.

ETOPS certification allows twin engine aircraft to fly straight, rather than flying close to airports for diversion in case of an engine trouble.

P&W added that preliminary findings indicated that the problem was with the knife edge seal on the modified aft hub of the high-pressure compressor.

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