NTSB: Airbus A330 Experienced An 'Airspeed Anomaly' | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

Monday

Tuesday

Wednesday

Thursday

Friday

Airborne On ANN

Airborne 09.26.16

Airborne 09.27.16

Airborne 09.28.16

Airborne 09.22.16

Airborne 09.23.16

Airborne Hi-Def On YouTube

Airborne 09.26.16

Airborne 09.27.16

Airborne 09.28.16

Airborne 09.22.16

Airborne 09.23.16

Wed, Jul 08, 2009

NTSB: Airbus A330 Experienced An 'Airspeed Anomaly'

Northwest Flight Crew In Japan Noted Airspeed Fluctuations

The NTSB has released a preliminary finding in an incident involving a Northwest Airlines Airbus A330 on a flight in Japan last month in which the onboard computers switched off the aircraft's autopilot possibly due in part to inconsistent airspeed indications.

The report reads:

NORTHWEST AIRLINES INC
Incident occurred Tuesday, June 23, 2009 in Kagoshima, Japan
Aircraft: AIRBUS A330-323, registration: N805NW
Injuries: 217 Uninjured.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed.

On June 23, 2009, at 0303 UTC, an Airbus 330-323, U.S. registration N805NW, operated by Northwest Airlines as flight 8 from Hong Kong, China, to Tokyo, Japan, experienced an airspeed anomaly while in cruise flight at FL390 approximately 50 miles southwest of Kagoshima, Japan. The crew reported that they were in normal cruise at FL390 and in visual conditions with some convective weather displayed on radar about 25 miles north of track, with thin cirrus clouds ahead.

After entering the cirrus and moderate precipitation and turbulence, the crew observed, and FDR confirms, the autopilot and autothrust switch off, and the aircraft switched to Alternate Law. The master caution and warning messages were activated. The crew followed flight manual procedures and the autopilot and normal law returned in about one minute, however the event quickly repeated itself, lasting for about 2 minutes. The crew turned the airplane 60 degrees off course to exit the weather as soon as the anomalous indications were observed. The autopilot, autothrust and other controls returned to functioning, but the airplane remained in alternate law for the rest of the flight.

File Photo

The crew observed, and FDR confirms, large airspeed fluctuations, small altitude fluctuations, and an overspeed alert. The flight continued to Tokyo, Narita airport and landed with no damage or injuries to the 9 crew and 208 passengers on board.

The incident occurred in Japanese airspace, and the investigation was delegated to NTSB by the Japanese Transportation Safety Board, who assigned an Accredited Representative to the investigation.

FMI: www.ntsb.gov

Advertisement

More News

Airborne 09.27.16: EAA's 200K!, MilPilots Get Break, UAV Pilot Applications

Also: GPS Sat, Aero-Calendar, B-21 Raider, Boeing 777X, Tecnam P2002JF, NBAA Honors Louis Seno, Alaska-Virgin Merger EAA has reached a major milestone, as the association has surpa>[...]

BlackSky Pathfinder Satellite Launched Aboard India’s PSLV

Paves The Way For 60-Satellite Constellation To Deliver High-Resolution Satellite Imaging The BlackSky Pathfinder-1 satellite was successuflly launched into a sun synchronous orbit>[...]

Several Injured By Helicopter Rotorwash At Boy Scout Event

Arriving Helo Blew Several Canoes Into A Crowd On Shore It was supposed to be the celebration of the introduction of a new program to introduce young kids to the Boy Scouts. It wou>[...]

FAA: Parachutes Did Not Open In Tandem Jump Accident

First-Time Skydiver And Instructor Fatally Injured In August The FAA has determined that a first time skydiver and his instructor were fatally injured in an accident August 6th, 20>[...]

Southwest Airlines Flight Attendants To Vote On New Agreement

Balloting To Take Place From October 16 - 31 Southwest Airlines Co. has announced that the Executive Board of Transport Workers Union (TWU) Local 556, the Union that represents our>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2016 Web Development & Design by Pauli Systems, LC