Archive for the 'Bombardier' Category

Canadair Regional Jet CRJ 1000 Takes First Flight

With all the news about delayed airliner programmes such as the Airbus A380, the Boeing 787 Dreamliner, or even the Sukhoi Superjet, it is good news that a new aircraft type has taken to the skies for the first time yesterday, from Montreal Mirabel in Canada: Bombarider’s CRJ 1000. (To see clearly, we have to mention that this is not a completely new aircraft as those mentioned above, it is the extended version of the operational CRJ-900 regional jet.)

CRJ-1000 Next Gen Prototype - c by Justin Jones at airliners.net

CRJ-1000 Next Gen Prototype - c by Justin Jones at airliners.net

The prototype flew a 3 hr. 25 min. first flight, reaching a maximum speed of 260 kt. and an altitude of 30,000 ft.

We put the gear up, operated the flaps and slats and exercised our fly-by-wire rudder,” pilot Jacques Thibaudeau said. “The aircraft handled similarly to the smaller CRJ900 airliner so flight crews will not have a problem transitioning.

Bombardier launched the (86-)100-seat CRJ1000 program in early 2007 and has tallied 63 firm orders, with first delivery slated for the 2009 fourth quarter. The prototype will make a few more flights from Mirabel and then head to Wichita for further testing in preparation for review by Transport Canada, US FAA and EASA.

The 1000 is 3 m longer than the CRJ-900 with an Maximum Take Off Weight of 91,800 lb and a range of 1,610 nautical miles.

(based on ATW News)

by balint01

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After Series Of Crashes SAS Buys Q400s Again

Following a series of serious crash landings last year, SAS (Scandinavian Airlines) decided to stop operating Bombardier Q400 Dash 8 type in October 2007.

A debate between the manufacturer and the airline started right after the decision was made. Investigations showed that in all cases the source of the indients was the landing gear. Therefore it was not just Bombardier involved in the discussions; Goodrich, the manufacturer of the landing gears also took part.

Finally the three parties came to a very strange agreement. SAS will receive a compensation of approximately 165 million dollars. The weird part of the agreement is that SAS orders 27 new Bombardier aircrafts and 13 of the new planes will be Q400s. This means that a few months after SAS refused to continue the operation of Q400s, it orders 13 new ones.

Although the spokesman of the airline said the Q400 NextGen is modified in several ways compared to the old ones, still it looks a little bit strange for me.

Luckily I am not the CEO of the airline, nor am I in the board of directors. It must have been a tough situation to decide on the signing of such an agreement. I am wondering how they will communicate this to their passengers.

I am interested in your opinions about it. I recommend this video to everyone interested in this topic.

By Szafi 

According to European Aviation Safety Agency Q400 Is Safe

The European Aviation Safety Agency reported Wednesday that Bombardier Inc.’s Q400 turboprops are airworthy after ruling that a series of recent accidents were not caused by design flaws. “We are very pleased with that statement, it proves that the aircraft is safe to fly and that’s what we’ve been saying from the beginning,”Bombardier spokesman Marc Duschesne said.

The European air authorities conducted the review after Scandinavian airline SAS AB permanently grounded its fleet of 27 Bombardier-built Q400s after one of its planes made an emergency landing in Copenhagen on Oct. 27 with a landing gear malfunction, the third such incident in seven weeks.

No one was seriously injured, but the Scandinavian airline said the accidents had damaged confidence in the planes.

According to the EASA, the most recent incident “was not due to a design error” and said the airworthiness of the aircraft is maintained.

Danish aviation authorities had earlier issued a preliminary report indicating that a piece of rubber stuck in the landing gear had prevented the gear from extending properly, causing the incident.

Source AP

By Szafi 

Copenhagen – Another Q400 Accident Again!

A plane carrying 46 people made an emergency landing at Copenhagen Airport in Denmark on Saturday, sliding onto its right wing after the landing gear collapsed, a police official said. No one was seriously injured in the accident, Copenhagen police spokesman Tommy Keil said. Prior to the accident, the pilots of the aircraft reported problems with its main landing gear, according to SAS.

The accident took place at 16:55 local time and the runway on which the aircraft landed — one of two at Copenhagen’s Kastrup Airport — was closed after it happened. The Q400 involved bore the registration number LN-RDI and was operating SAS flight number SK 2867 from Bergen to Copenhagen, the airline said.

See all details on Aviation.com

LN-RDI earlier while landing at Copenhagen - by Airliners.net

As AirlineWorld reported it earlier, there were similar crashes of the Bombardier Q400, when Bombardier together with FAA recommended all operating carriers the grounding of their Q400 fleet for a safety check. We even had a discussion with Mr Murray Cohen, a flight engineer and Bombardier’s spokesman about the accuracy of this check. Now I am wondering what might have happened during that safety check when not late after relaunching them the first accident happens.

By Szafi 

Q400 Safety Issues

As AirlineWorld reported earlier, all Bombardier Q400s were advised to be grounded for a security check following the accident of Scandinavian Airline’s flight to Aalborg on September 9, 2007.

Following the article, we received a comment from Mr Murray Cohen:

“I am a retired flight controls engineer. I have been following the Q400 accidents that occurred in Denmark and Lithuania very closely and consider these accidents to be very critical situations. These failures are giving the aircraft industry a subtle, but urgent warning that must be addressed. I found a report, dated September 15, 2007 online re – Preliminary Report on Danish SAS Q400 accident that included a very useful drawing for analyzing the failure mode. It would also be very useful to review a drawing or sketch of the main landing gear retract/extend actuator, manufactured by the Goodrich Corp. in Tullahoma, Tennessee in order to confirm my analysis of these failures. Please note that a nose gear incident occurred on a Q400 in Japan on March 13, 2007, and I suspect that it is probable that it contains a similar actuator design as the main landing gear system. Another nose landing gear accident occurred in Munich, Germany on September 21, 2007. If this is true, it would be very important to inspect the nose landing gear actuator as well as the main landing gear actuator. In my study of the main landing gear reports, some investigators noted the fact that the jam nut backed off and the lockwire was missing. This condition, could eventually cause a disconnection of the rod end, which was also stated by investigators in preliminary reports. This failure may have actually occurred after 10,000 cycles while coupled with severe impact upon landings. This scenario seems very plausible. Most of the hydraulic actuators used in the aircraft industry contain a locking device to prevent rotation of the actuator piston, and are secured by a jam nut, and lockwired to prevent the jam nut and the locking device from backing off. Early discussions regarding this failure were stated that corrosion in the linkage probably played a major role in the accident. I don’t believe that corrosion played a significant role in these failures. My intention is not to interfere with the official investigation of these accidents, but to offer a feasible scenario to help solve the problem.”

I wrote a letter to Bombardier and I was given the following answer:

“Investigations into the Q400 right main landing gear incidents in Denmark
and Lithuania are
still continuing, as are the investigations into the nose landing gear
incidents in Japan and Munich.

We cannot comment or speculate on the root causes of these incidents until
such time as
the authorities have concluded their investigations and issued  their final
reports. We can however advise
that on the basis of published preliminary reports and comments by the
authorities as to the focus of their
investigations,  there is no relationship between the two nose landing gear
incidents and no relationship
between those and the Danish and Lithuanian incidents.

We suggest you contact the relevant aviation authorities for more
information.”

I think it is a correct answer and naturally we will carry on and contact the relevant authorities. In the meantime Mr Murray has left for holiday, but we are waiting for his comment.

If you are interested in the follow-up of this conversation, please make sure to add our blog’s RSS to your RSS reader!

By Szafi 

All Operators Need To Ground Bombardier Q400s Following 2 Accidents

A second incident has occurred involving the collapse of a right main landing gear shortly after touchdown on a Q400 aircraft operated by SAS. The first incident occurred at Aalborg, Denmark on September 9, 2007. The second incident occurred on September 12, 2007 at Vilnius, Lithuania. There were no reported injuries amongst the crew of four and 48 passengers on board the second aircraft.

As a precautionary measure, Bombardier and Goodrich, the landing gear manufacturer, recommend in an All Operator Message (AOM) that operators of Q400 aircraft having accumulated more than 10,000 landing gear cycles (a cycle is one take-off and landing), be grounded until an inspection of the landing gear is carried out.

Bombardier has delivered more than 160 Q400 aircraft to airlines around the world, of these there are currently about 60 Q400 aircraft with more than 10,000 landing gear cycles.

A Bombardier Air Safety representative has been dispatched to the second incident site to provide assistance to the investigating authorities. Until such time as investigations are concluded by the relevant aviation authorities, Bombardier cannot speculate or comment as to the cause of these incidents.

Source: Bombardier

By Szafi 

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