Flugunfall 17 SEP 1979 einer McDonnell Douglas DC-9-32 CF-TLU - Boston, MA
ASN logo
 

Status:Accident investigation report completed and information captured
Datum:Montag 17 September 1979
Zeit:12:26
Flugzeugtyp:Silhouette image of generic DC93 model; specific model in this crash may look slightly different
McDonnell Douglas DC-9-32
Fluggesellschaft:Air Canada
Kennzeichen: CF-TLU
Werknummer: 47196/288
Baujahr: 1968
Betriebsstunden:28425
Anzahl Zyklen der Zelle:26816
Triebwerk: 2 Pratt & Whitney JT8D-7B
Besatzung:Todesopfer: 0 / Insassen: 5
Fluggäste:Todesopfer: 0 / Insassen: 40
Gesamt:Todesopfer: 0 / Insassen: 45
Sachschaden: schwer beschädigt
Konsequenzen: Repaired
Unfallort:E of Boston, MA (   USA)
Flugphase: Während des Fluges (ENR)
Betriebsart:Internationaler Linienflug
Flug von:Boston-Logan International Airport, MA (BOS/KBOS), USA
Flug nach:Yarmouth Airport, NS (YQI/CYQI), Kanada
Flugnummer:AC680
Unfallbericht:
At 12:12 local time Air Canada Flight 680, a scheduled passenger flight to Yarmouth, Nova Scotia, Canada, departed Logan International Airport, Boston, Massachusetts, USA. About 14 min after takeoff, at an altitude of about 25,000 ft msl, the tailcone along with the aft cabin pressure access door and a portion of the aft cabin pressure bulkhead separated from the aircraft causing rapid decompression of the passenger and flightcrew compartments. The aircraft was landed safely at Logan International Airport about 38 min after takeoff. Of the 45 persons aboard, one flight attendant received minor injuries during the decompression. The aircraft's oxygen system and its elevator control and engine control systems were damaged.

Probable Cause:

The National Transportation Safety Board determines that the probable cause of the accident was a fatigue fracture of the aft cabin pressure bulkhead which resulted in a rapid decompression of the aircraft's cabin area. This fracture initiated from a crack below the aft bulkhead access door which was discernible on the X-rays taken during the aircraft's last maintenance inspection but was not detected by the inspectors.

Accident investigation:

cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 5 months
Accident number: NTSB/AAR-80-13
Download report: Final report


Fotos

Add your photo of this accident or aircraft

Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Boston-Logan International Airport, MA to Yarmouth Airport, NS as the crow flies is 428 km (268 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
languages: languages

Share

DC-9-30

  • 662 built
  • 26th loss
» safety profile

The Aviation Safety Network is an exclusive service provided by:
Quick Links:

CONNECT WITH US: FSF on social media FSF Facebook FSF Twitter FSF Youtube FSF LinkedIn FSF Instagram

©2024 Flight Safety Foundation

1920 Ballenger Av, 4th Fl.
Alexandria, Virginia 22314
www.FlightSafety.org