Accession Number:

ADA137255

Title:

A Survey of Serious Aircraft Accidents Involving Fatigue Fracture. Volume 2. Rotary-Wing Aircraft (Etude sur des Accidents Importants d'Avions du aux Effets des Fractures de Fatigue. Volume 2. Effets sur des Helicopteres).

Descriptive Note:

Aeronautical note,

Corporate Author:

NATIONAL AERONAUTICAL ESTABLISHMENT OTTAWA (ONTARIO)

Personal Author(s):

• Campbell, G. S.
• Lahey, R. T. C.

Report Date:

1983-04-01

Pagination or Media Count:

98.0

Abstract:

This is Volume 2 of a world-wide survey of serious aircraft accidents involving fatigue fracture. Volume 2 of the report deals with rotary-wing aircraft, while Volume 1 addressed fixed-wing aircraft. A total of 419 rotary-wing accidents since 1937 were identified as having fatigue fracture as a related cause, and these accidents resulted in 379 fatalities. The accidents cover civil and, to a limited extent, military aircraft. Accidents are listed by failure type, as well as by aircraft type. Enginetransmission failure and tail-rotor failure were the most common cause of rotary-wing accidents, and currently there is an average of about 31 rotary-wing fatigue accidents per year.

Descriptors:

• *AVIATION ACCIDENTS
• *SURVEYS
• *FIXED WING AIRCRAFT
• ROTARY WING AIRCRAFT
• FATIGUE(MECHANICS)
• FRACTURE(MECHANICS)
• STATISTICAL DATA
• TABLES(DATA)

Subject Categories:

• Military Aircraft Operations
• Safety Engineering
• Mechanics
• Commercial and General Aviation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE