Jetfuel From Australia, joined Jan 2005, 2206 posts, RR: 0 Posted (5 years 7 months 5 hours ago) and read 6299 times:
Qantas Airbus A330 incident, 480km North West of Perth on 27 December 2008
02 January 2009
The Australian Transport Safety Bureau was advised on 27 December 2008 of an occurrence that day involving a Qantas Airbus A330-300 aircraft while in cruise at FL360 (36,000 ft) enroute from Perth to Singapore.
At about 0829 UTC (1729 Local Time), the autopilot disconnected and the crew received an ECAM message (NAV IR 1 Fault) indicating a problem with ADIRU Number 1. The crew actioned the Airbus Operations Engineering Bulletin (OEB) procedure by selecting the IR 1 push-button to OFF and the ADR 1 push-button to OFF. Both OFF lights illuminated. The crew elected to return to Perth and an uneventful overweight landing was conducted. At the time that the autopilot disconnected, the aircraft was approximately 260 nautical miles (NM) North-West of Perth airport and approximately 350 NM South of Learmonth airport.
It is very early in the investigation and too soon to draw any conclusions as to specific causal factors involved in this incident. As it appears to be a similar event to a previous event involving an A330 aircraft (AO-2008-070 on 7 Oct 2008) it will be included as part of the earlier investigation. The ATSB investigation will explore all aspects of the operation of the aircraft, including examination of recorded data, and any commonalities with past occurrences.
While the investigation is likely to take a number of months, the ATSB has been working with a number of national and international parties on this investigation and plans to release an Interim Factual report by about mid-February 2009.
Should any critical safety issues emerge that require urgent attention, the ATSB will immediately bring such issues to the attention of the relevant authorities who are best placed to take prompt action to address those issues.
ADIRU = Air Data Inertial Reference Unit
ECAM = Electronic Centralized Aircraft Monitor
IR = Inertial Reference
ADR = Air Data Reference
NAV = Navigation
Where's the passion gone out of the airline industry? The smell of jetfuel and the romance of taking a flight....
707lvr From United States of America, joined Jun 2004, 582 posts, RR: 2
Reply 1, posted (5 years 7 months 4 hours ago) and read 6266 times:
I was intrigued by the title.
".. received an ECAM message (NAV IR 1 Fault) indicating a problem with ADIRU Number 1. The crew actioned the Airbus Operations Engineering Bulletin (OEB) procedure by selecting the IR 1 push-button to OFF and the ADR 1 push-button to OFF."
pretty much represents the excitement of flight in the modern era. Not much seat-of-pants these days I guess.
QF744FAN From Australia, joined Jan 2007, 121 posts, RR: 0
Reply 2, posted (5 years 6 months 4 weeks 1 day 21 hours ago) and read 5837 times:
Ok..... I'm going to repeat something that I posted in one of the discussions when the first incident happened last year, at the the time it lead to me being pretty much ripped apart by other a.netters, and yes I'm laughing at it.
With a very similar incident taking place, is this a sign of something wrong with A330?
Surely with such a new fleet of these aircraft there's nothing QF could have failed to do yet that could lead to two seperate occurences.
Ikramerica From United States of America, joined May 2005, 21474 posts, RR: 60
Reply 3, posted (5 years 6 months 4 weeks 1 day 21 hours ago) and read 5835 times:
Quoting QF744FAN (Reply 2): With a very similar incident taking place, is this a sign of something wrong with A330?
Possibly something uncommon but repeatable. Considering the number of A330 flights each day that don't have those problems, it seems rare, but also needs to be addressed lest something really bad happens in the future.
Maybe an errant line of code somewhere in the vast code of today's pushbutton aircraft…
Of all the things to worry about... the Wookie has no pants.
Breiz From France, joined Mar 2005, 1915 posts, RR: 2
Reply 7, posted (5 years 6 months 4 weeks 1 day 20 hours ago) and read 5618 times:
Quoting SpeedBirdA380 (Reply 6): Are we not seeing something of a pattern recurring in this particular region?
You mean the famous "Perth triangle"?
Seriously, earlier reports on the first incident mentioned a powerful military transmitting station of sort.
I mean this: http://www.news.com.au/heraldsun/story/0,21985,24505353-661,00.html
"Powerful signals from a secretive naval base are being probed as a possible cause of a Qantas jet plunge last week."
TristarSteve From Sweden, joined Nov 2005, 3982 posts, RR: 34
Reply 9, posted (5 years 6 months 4 weeks 1 day 19 hours ago) and read 5472 times:
Quoting Bobnwa (Reply 8): You aren't seriously suggesting a Bermuda Triangle situation are you.
No, it is not a triangle, just the third reported IRU failure in the same place.
And on the ground is The radio station that transmits to submarines, not only Australian, but USN as well, using huge amounts of power to send signals round the world.
Quoting SpeedBirdA380 (Reply 6): nd I think I am correct in thinking that a 777 also suffered an in flight upset due to uncommanded flight control inputs a few years ago which again happened near Perth.
Yes it was a Malaysia B777 which also had an IRU failure.
SpeedBirdA380 From United Kingdom, joined Jul 2008, 539 posts, RR: 2
Reply 10, posted (5 years 6 months 4 weeks 1 day 18 hours ago) and read 5302 times:
Quoting Bobnwa (Reply 8): You aren't seriously suggesting a Bermuda Triangle situation are you. The Bermuda Triangle has proved to be pure fiction, so please no more of that. I doubt it has anything to do with area 51 either.
I was merely pointing out that the three simular incidents all occured in the same region. I was not suggesting anything like "The Bermuda Triangle".
And as "Briez" and "TristarSteve" have pointed out the idea of a Military base and the radio signals it transmits possibly having something to do with these incidents is not impossible.
SunriseValley From Canada, joined Jul 2004, 4874 posts, RR: 5
Reply 12, posted (5 years 6 months 4 weeks 1 day 11 hours ago) and read 3083 times:
The effective difference between the two incidents appears to be that the first put the aircraft into a dive, presumably with the auto-pilot engaged and the second disengaged the auto-pilot before any harm could be done.
No doubt the investigation will determine any connection between the two incidents. Informed sources say the first is suspected to have been caused by software issues.
QF744ER From Australia, joined Jun 2004, 304 posts, RR: 0
Reply 13, posted (5 years 6 months 4 weeks 1 day 7 hours ago) and read 2350 times:
CX, TG, MH, GA (seasonal) and D7 all operate A330's in and out of Perth...CX have been flying their A333's here since the mid 90's, long long before QF even ordered theirs and I too find it odd that these 'occurances' seem to be isolated to QF A333's.
NZ1 From New Zealand, joined May 2004, 2249 posts, RR: 25
Reply 15, posted (5 years 6 months 4 weeks 1 day 4 hours ago) and read 1792 times:
AIRLINERS.NET CREW FORUM MODERATOR
I'm also wondering if the incidents on the 2 QF A330's could be linked in ANY way to the NZ A320 crash off Perpignan back in November. The 2 QF aircraft were at altitude, and had time to recover, whereas the A320 did not.