RJ Crash Prelim

[Wile]

NTSB prelim on the FDR says both engines stopped operating at FL 410. Pinnacle has new company altitude restriction FL 370. Look on NTSB web site. Interesting info.

 

[N813CA]

41,000 is a restriction for pressurization, not engines.

 

["TheBigPicture"]

Hey Wile....Could you provide a reference for your info. I checked out NTSB.gov and found no record of what you were talking about....so I really hope you're not just blowin' smoke

 

[SCT]

I have never flown a CRJ, but on it's baby brother the 604, the FL410 ceiling is a pressurization limitation, (not engine/wing) for FAA certified a/c. From what I was told in school, above FL410 the a/c could not do an emergency descent to 15000 within in so many minutes. Canadian registered a/c have a higher ceiling limit.

 

[Flying Illini]

Wile, I'm in the same boat as "TheBigPicture." Please post a link to your info, I'd like to read it.

 

[Flying Horses]

NTSB Update

National Transportation Safety Board
Washington, DC 20594

October 20, 2004

************************************************************

UPDATE ON PINNACLE AIRLINES CRASH IN JEFFERSON CITY,
MISSOURI

************************************************************

Washington, D.C. -- The National Transportation Safety Board
today released the following update on its investigation of
the October 14, 2004 crash of Pinnacle Airlines flight 3701
in a residential area in Jefferson City, Missouri, about
three miles south of the Jefferson City, Missouri, airport.
The crash resulted in the deaths of the two crewmen. The
airplane was destroyed by the impact forces and a post crash
fire. There were no passengers onboard, nor were there any
injuries on the ground.

On October 14, 2004, the aircraft departed Little Rock,
Arkansas about 9:21 p.m. (CDT), on a repositioning flight
en-route to Minneapolis-St. Paul, Minnesota.

Air Traffic Control
At about 9:43 p.m., the flight crew checked in with Kansas
City Air Route Traffic Control Center (ARTCC) and indicated
that they were climbing to 41,000 feet. At approximately
9:52 p.m., the flight crew acknowledged that they were at
41,000 feet. At about 9:54 p.m., the flight crew asked for
a lower altitude. At about 9:55 p.m. the flight crew
declared an emergency. At about 9:59 p.m. the flight crew
requested an altitude of 13,000 feet. At about 10:03 p.m.,
the flight crew reported that they had experienced an engine
failure at 41,000. At 10:08 p.m., the flight crew stated
that they had a double engine failure and that they wanted a
direct route to any airport (According to the Flight Data
Recorder both engines stopped operating almost
simultaneously at 41,000 feet.) Kansas City ARTCC directed
the flight to Jefferson City Missouri Airport. At about
10:13 p.m., the flight crew stated that they had the runway
approach end in sight. The last radar contact for the
flight was at 900 feet above ground. The plane crashed at
about 10:15 p.m.

Maintenance
On October 14, the day of the accident, the airplane
underwent maintenance to replace the 14th stage bleed air-
sensing loop on the right engine. During a scheduled 7:45
a.m. departure from Little Rock, Arkansas to Minneapolis
St.-Paul, Missouri, an Indicating Crew Alerting System
(ICAS) message stating "R 14th duct" occurred during take-
off and the flight crew (not the accident crew) aborted the
take-off and returned to the gate. The 21 passengers were
deplaned. The airplane never left the ground.
Two mechanics from Pinnacle's Memphis, Tennessee facility
did the repair. During a Safety Board interview on
Saturday, the mechanics stated that they only replaced the
No. 2 (right) engine's 14th stage bleed air sensing loop.
The mechanics completed the repair and tested the system.
The aircraft was released for flight. On-scene evidence
confirms that the repair was done in accordance with the
Aircraft Maintenance Manual.

The aircraft was equipped with two GE CF34-3B1 engines. The
right engine had accumulated 2,303 hours and 1,971 cycles
since new. It was installed new on the aircraft on October
23, 2003. The left hand engine had 8,856 hours and 8,480
cycles since new. It was removed from another aircraft on
October 30, 2003 and installed on the accident aircraft on
April 6, 2004. Maintenance records indicate that during an
A4 check on June 9, 2004, the left engine igniters were
replaced. During an A5 check on August 18, 2004, the right
engine igniters were replaced. The most recent check was
the A5 check performed on August 18, 2004.

Operations
The Operations group traveled to Memphis to interview pilots
who had flown with the two crew members and to interview
some of the airlines training personnel and managers. There
are 10 to 12 interviews scheduled.

Wreckage
On-scene examination of the wreckage shows there was no sign
of an in-flight fire on the structure of the aircraft. The
airplane was found inverted and separated in several
sections. All four major flight surfaces were found at the
main wreckage site. The cockpit area was severely damaged
by the post crash fire.

During the Safety Board's examination of the engines, it was
noted that there was some thermal damage to the No. 2 engine
and that will be further looked at during a teardown in
Lynn, Mass. The engines will be shipped out today.

The wreckage is being shipped to Rantoul, Kansas.

Since the accident, the operator, Pinnacle Airlines, has
placed a new company altitude restriction on the flight
ceiling for their CL600-2B19s of 37,000 feet.

Parties to the investigation are Pinnacle Airlines, Federal
Aviation Administration, Air Line Pilot's Association,
National Air Traffic Controller's Association, and General
Electric (GE). The Transportation Safety Board of Canada
has sent an accredited representative along with technical
advisors from Transport Canada, the agency that certified
the aircraft, and Bombardier Aerospace, the manufacture of
the aircraft.
http://master.mx-targeting.com/mx/s...61:45696:4322:1451520:4908:564096:5038:564480

 

[FL000]

Anyone have a link to the above narrative, perhaps with an ntsb.gov domain? I can't find anything on their site that resembles this.

 

[tarp]

Go to the NTSB "Home Page" and then fing the link for Press releases - this is an active investigation and the most up-to-date stuff is in press releases not the aviation database.

http://www.ntsb.gov/Pressrel/2004/041020c.htm

 

[Flying Illini]

Go to the NTSB "Home Page" and then fing the link for Press releases - this is an active investigation and the most up-to-date stuff is in press releases not the aviation database.

http://www.ntsb.gov/Pressrel/2004/041020c.htm

aahhhhh, thankyou. That's why I couldn't find any of this stuff.

 

["TheBigPicture"]

Thanks Tarp and Horses