Resulting Safety Initiatives

Following this accident, a comprehensive program of research into turbine engine bird ingestion was initiated by the FAA.

At the time of the accident, the Civil Air Regulations (CAR) were the effective regulations regarding certification and operation of airplanes and engines. By the time regulatory changes were issued, 14 CFR part 25 and 33 had replaced the CARs. As operational history was collected on turbine powered transport airplanes, a number of engine failure threats from foreign object ingestion had surfaced, bird threats being only one.

Advisory Circular 33-1A, Turbine-engine Foreign Object Ingestion and Rotor Blade Containment Type Certification Procedures, was published in June 1968 and included the first guidance on bird ingestion and criteria for engine certification.

While not a direct result of this accident, continued service experience with turbine engine bird ingestion, and a greater understanding of the bird threat, resulted in regulatory changes. These changes were subsequently adopted as:

14 CFR 33.77, Foreign object ingestion adopted in October 31, 1974 to initially address the threat from bird ingestion.

14 CFR 33.76, Bird ingestion,
was adopted in December 2000. This regulation is intended to improve the tolerance of turbine engines to bird ingestion.

Turbine Engine Bird Ingestion Standards
Turbine Engine Bird Ingestion Standards
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