[新聞] 波音787將優先認證ETOPS
聽說某航的ETOPS....有點地位不穩...
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波音787將優先認證ETOPS
Boeing 787 Test Priority Shifts To ETOPS
By Guy Norris
Boeing’s 787 certification focus is shifting from aircraft tests to
qualification for long-range ETOPS at entry-into-service in the aftermath of
last November’s electrical fire, says Boeing CEO James McNerney.
Despite the delays caused by the fire on ZA002, the 787 program has completed
75% of the flight testing required for delivery, but the redesign of software
prompted by the incident is threatening the timing of Boeing’s ETOPS
qualification program. Without FAA approval for ETOPS at entry-into-service,
early long-range operations by launch customer All Nippon Airways (ANA) and
others will be severely limited.
Speaking to analysts on a 2010 earnings call, McNerney adds that as 787
flight hours pass the 2,500 flight-hours mark, qualification testing for
ETOPS at entry-into-service is the growing priority. “We have a clear view
of what we need to do. The FAA has been working very closely with us. ETOPS
is different this time around than it was on the 777. The FAA has a new way
of doing it. It used to be cycle-based and now it is fault-based and
condition-based. The question is what test points are applicable for each
test point, and we have to do it right.”
Commenting on development of the revised power distribution control software
after the 787 electrical fire, and whether the chances of winning ETOPS
clearance at entry-into-service have been endangered, McNerney says, “We are
in agreement. We have a temporary fix, but we are going to implement a
permanent fix before we go into ETOPS testing. But there is no
misunderstanding between us [and the FAA] on what needs to be done, and on
what timing.”
Overall Assembly Rate Will Continue To Grow
Production of the 787 is holding at two per month, and Boeing remains
confident the overall assembly rate will continue to grow to 10 per month by
the end of 2013. McNerney says the target is achievable but will occur later
in the year than originally planned because of the delivery slide to the -8
into the third quarter of 2011. “We had a very conservative view and a
significant amount of margin in our production ramp-up plans, and a lot of
that has now been eaten up by the latest delay. Everything slid to the right—
and that is offset by a contingency we had in 2013.”
McNerney adds that completion of recent assemblies into Everett has been at a
“very high” level, suggesting that the company’s supply chain is over the
hump on rework levels and aiming for a smoother ride into the production
ramp-up plan for 2011-2013. On any thoughts of rate acceleration, McNerney is
cautious. “We’re mindful of the supply chain, and we don’t want to relive
the experiences of 1997.”
Commenting on the 747-8F program, McNerney says the stretched freighter has
also passed the 1,700-flight-hour mark and, at roughly 650 flights, is about
two-thirds of the way through its test program. With fixes for the aileron
vibration and modal suppression issues discovered last year now completing
flight test, Boeing remains confident of achieving first delivery around
mid-2011. Development of the -8I passenger variant, meanwhile, remains on
track for first flight in late March, while both the first two aircraft have
now achieved ‘power-on’ in ground tests.
CFO James Bell says deliveries for 2011 are expected to cover 485-400
aircraft, and that all positions through December are “sold out.” This
includes 25-40 747-8/787s, divided “roughly equally between the two programs.
” Analysts suggest deliveries of up to 17 747-8s by yearend, meaning that
Boeing could be looking at eight to 23 787 deliveries for the last four
months of 2011.
http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=comm&id
=news/avd/2011/01/28/10.xml&headline
=Boeing%20787%20Test%20Priority%20Shifts%20To%20ETOPS
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