EAST HARTFORD, Conn.,
Feb. 12, 2017 /PRNewswire/
-- Pratt & Whitney, with the support of Airbus, continues
to evaluate the impact of findings last week relating to a knife
edge seal on the High Pressure Compressor (HPC) aft hub on a
limited subpopulation of the PW1100G-JM engine that powers the
Airbus A320neo aircraft.
Pratt & Whitney implemented an engineering change in
mid-2017 that was intended to improve the durability of the knife
edge seal for this engine. Engines that incorporated this
engineering change entered revenue service on customer aircraft
beginning in December 2017. In late January and early
February of this year, four of these modified engines did not
perform as anticipated.
Pratt & Whitney, in coordination with Airbus, will present
to regulatory authorities this week a proposed mitigation plan for
the modified configuration.
The current population of impacted engines is 43 engines
installed on 32 aircraft, of which 21 aircraft have one engine with
the modified configuration, and 11 aircraft have two engines with
that configuration. There are also approximately 55 such
engines delivered to the Airbus final assembly line awaiting
installation on customer aircraft. Pratt & Whitney is working
with Airbus to implement the remediation plans set forth in its all
operator transmission. The company is also working to assess
an overall industrial and delivery plan to minimize customer
disruption. Pratt & Whitney will be in a position to
provide greater detail around the remediation plan and impact, if
any, on its 2018 delivery plan, once the regulatory authorities
address its proposed solution.
Pratt &
Whitney
+1 (860) 565-9600
media@pw.utc.com
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SOURCE Pratt & Whitney