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Old 13th April 2019, 09:32   #136
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Default Re: Airbus A320neo: Pratt & Whitney engine issues

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Originally Posted by Aditya_Bhp View Post
Has P&W found any solution to this mess? Why does Indigo still continue adding new A320Neos with P&W engines? They could switch their new A321neos over to CFM engines. Why are they not doing that?
There was one more incident reported in today TOI print edition. Engine no 2 went off apparently due to claimed bird hit.

As for using P & W engines goes & what i read somewhere, CFM engines are 30-40% more costly than P & W engines.
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Old 13th April 2019, 10:42   #137
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Default Re: Airbus A320neo: Pratt & Whitney engine issues

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Originally Posted by Aditya_Bhp View Post
Why does Indigo still continue adding new A320Neos with P&W engines?
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They could switch their new A321neos over to CFM engines. Why are they not doing that?
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Originally Posted by .sushilkumar View Post
As for using P & W engines goes & what i read somewhere, CFM engines are 30-40% more costly than P & W engines.
(1) Indigo have bought a certain configuration of a A320 airframe married to a P&W engine which is quite different where interface is concerned of that the same airframe married to a CFM engine. You cannot fit a CFM on a plane with interfaces for a P&W. Other than the engineering complexity of a thousand and one interfaces there will be a whole year long certification process of a A320 airframe originally designed for a P&W now modified for a CFM.

(2) The rumour of a CFM costing 30% to 40% more seems totally off to me based on my professional experience in engine leasing contracts. Engine acquisition pricing is a complex matter covering hardware, upgrades, liabilities, spares support level, lifetime support level, lease versus no-lease versus part lease etc. Depending on how you pick and choose data you could prove the engine is free even! - literally. A particular P&W engine contract for 100 engines without support on X , Y & Z could be 40% cheaper than a CFM acquisition of 5 engines with all the support only from the OEM at full price.

(3) Indigo cannot just cancel the contract unless they wish to incur penalties that could half shut the airline down. As for P&W I am quite sure this matter will be behind us soon - it is a hardware issue - it should not have happened and is not acceptable and I expect it is only a matter of time for things to get resolved versus that batch of engines as well as P&W completing retrofitting new engines (hopefully without the problems) to the rest of the Indigo fleet. I can understand an engine shutdown being a very frightening prospect for a lay passenger. It does not stop me from flying Indigo as a carrier.

PS: I have no business or personal connection to Indigo
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Old 13th April 2019, 11:24   #138
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Default Re: Airbus A320neo: Pratt & Whitney engine issues

The new engines from P&W, as well as the 737 Max aircraft from Boeing, would have come to the end users only after so many months of exhaustive testing, trials and certification. So why are they throwing up problems at this stage and not during those stages? Were they not exhaustive enough?
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Old 14th April 2019, 11:08   #139
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Default Re: Airbus A320neo: Pratt & Whitney engine issues

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Must be a broken link. Here is the text of the article:
Thank you for pasting the full article. I am responding here primarily to help T-BHP readers who are passengers with the nuances of the situation so that each can take a better decision, for themselves, on their flying patterns.

PS: Never would I have thought that in the late afternoon of my life I would write in support of the DGCA!!

When things go wrong the reaction of a typical Govt Dept is to ban without thinking through the nuances of the many shades of grey and the many branches of the citizenry who will be affected in many different ways. The P&W engine issue is one situation where the DGCA has actually thought through how to balance flight safety within limits with availability of aircraft to meet passenger volume demand with fare prices going to the stratosphere if there is a shortage of seats with what is the probability of a fatality if one engine suffers a mid-air problem. Contrary to the very understandable fears of the flying public an engine shut down is not the end of the world in a twin engine machine. In my day when we tested a second hand or even a first hand aircraft for a client amongst other flight tests we would often {though not always} do a one engine shut down test too mainly to check stability and flying characteristics on a single engine.

Coming back to our case - hence the DGCA has said that no aircraft can operate with both engines belonging to the P&W batch which went rogue - i.e. providing a high assurance that in the event of a mid-air problem you still have a normal engine from the 'good batch' to get back to land. And they have added a few more measures elaborated upon in the article. On a single normal engine the A320 IIRC is rated for a 6-hour flight.

Mind you this is not an ideal situation. It is a band aid. But given that Jet Airways is gasping, Spice has a part of its fleet grounded a ban will only make a bad demand-supply-price situation worse. So the DGCA has determined what is a feasible band aid to keep things from collapsing further while P&W sort out the technical issue. No sympathy for P&W from my side, mind you.

Keeping all factors in mind I think the DGCA has taken a sensible decision without resorting to hysteria. I won't comment on the luminaries quoted in the article as my views might be prejudiced.To say that the DGCA is manned by dodos is incorrect. They are bureaucratic and inflexible and at times infuriating but I can think of several genuinely competent and diligent technical officers in the DGCA.

Last edited by V.Narayan : 14th April 2019 at 11:16.
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Old 18th May 2019, 18:35   #140
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So A320neo engines, have they been fixed or are they forgotten over the 737max issue.
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Old 30th May 2019, 22:21   #141
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Default Re: Airbus A320neo: Pratt & Whitney engine issues

As per news reports, Indigo has dropped Pratt and Whitney engines from their line up and may sign up rival CFM for 280 aircrafts. The deal may be announced during the Paris Air Show in June.

https://www.businesstoday.in/current...ry/352054.html

I feel this is the need of hour. Their aircrafts were getting stuck at many places with danger to passengers. Looking at this, GoAir may follow suit.

Last edited by BoneCollector : 30th May 2019 at 22:24.
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Old 17th June 2019, 22:09   #142
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Default Re: Airbus A320neo: Pratt & Whitney engine issues

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As per news reports, Indigo has dropped Pratt and Whitney engines from their line up and may sign up rival CFM for 280 aircrafts. The deal may be announced during the Paris Air Show in June.

https://www.businesstoday.in/current...ry/352054.html

I feel this is the need of hour. Their aircrafts were getting stuck at many places with danger to passengers. Looking at this, GoAir may follow suit.

As reported earlier, Indigo has placed order for 280 CFM engines for its single aisle A320s and A321s. The deal is worth 20 billion USD. This would come as a blow to Pratt and Whitney and increase the presence of CFM in India after Vistara and Air India which already use them. Earlier report said engines for 280 aircrafts, current one says 280 engines.

https://www.livemint.com/companies/n...777154435.html
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Old 16th July 2019, 11:03   #143
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Default Re: Airbus A320neo: Pratt & Whitney engine issues

An Indigo A320 Neo with P&W engines operating flight 6E-162 from Goa to Ahmedabad on 15th July developed a snag and returned to Goa about 50 minutes after take-off, as per AVHerald
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