On March 22, 1984, a Cessna 188B (registration N9541J) was involved in an aviation accident near Lake Village, AR. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During takeoff rotation, a propeller blade separated and was thrown 1000 feet behind the aircraft. The remaining blade and hub became unbalanced, twisting the engine 45 degrees. The pilot shut down the engine, but the aircraft exited the runway and cartwheeled. Metallurgical tests found fatigue on the blade and hub attachments.
Accident Sequence
As the aircraft began to rotate during takeoff, one propeller blade separated and was thrown approximately 1000 feet behind the aircraft. The remaining blade and the hub became unbalanced, causing the engine to twist to a 45-degree angle. The pilot shut down the engine. The aircraft then traveled off the left side of the runway and cartwheeled.
Examination Findings
Inspection of the propeller revealed that the broken blade had fractured about two inches outboard of the hub. Metallurgical tests were conducted on the separated components. These tests identified numerous fatigue origins on both blade butt ends at their separation points, as well as in the propeller attachment area on the face of the hub. Additionally, the propeller blade mounting, which attaches to the engine, had broken out between two stud holes. This mounting area exhibited fatigue indications and deformation of the mounting surface.
What happened in the 22 Mar 1984 Cessna 188B accident near Lake Village, AR?
During takeoff rotation, a propeller blade separated and was thrown 1000 feet behind the aircraft. The remaining blade and hub became unbalanced, twisting the engine 45 degrees. The pilot shut down the engine, but the aircraft exited the runway and cartwheeled. Metallurgical tests found fatigue on the blade and hub…
What aircraft was involved and where did it happen?
The accident on 22 Mar 1984 involved a Cessna 188B, registration N9541J, at Lake Village, AR.
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