Friday, April 27, 2018

Pilots report A320neo engine ‘sluggish' while revving to avoid close call in air

New Delhi:  In the latest incident involving Pratt & Whitney (PW) engines for the Airbus A320 Neo, one of them was reported to be "sluggish" when the aircraft needed it to rev to veer away from another plane dangerously close to it. The planes flew safely away from each other, but the pilot filed a report about this alleged under-performance and the Indian aviation regulator is probing it.
The incident happened on Monday afternoon when IndiGo's 6E 6488 (VT-IGK) was flying from Kolkata to Delhi and GoAir G8 585 was on its way from Mumbai to Patna. While the GoAir A320 new engine option (Neo, VTWGE) was descending from 37,000 feet to 33,000 feet and IndiGo's A320 (not a Neo) was at 36,000 feet in Varanasi airspace, the two planes breached minimum separation and came uncomfortably close.
Modern aircraft have traffic collision avoidance systems (TCAS) equipment that issue two types of advisories to pilots: traffic advisories (TAs) and resolution advisories (RAs). In the first step, a TA is issued to give an advance warning to crew of two planes that they are headed in the same direction. In the second stage, RA asks crew to take evasive action to avoid mid-air collisions.
27/04/18 Saurabh Sinha/Times of India
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