Incident Overview
Date: Tuesday 26 April 1983
Aircraft Type: Shin Meiwa PS-1
Owner/operator: Japan Maritime Self Defence Force – JMSDF
Registration Number: 5801
Location: Iwakuni MCAS –
ÿ Japan
Phase of Flight: Manoeuvring (airshow, firefighting, ag.ops.)
Status: Destroyed, written off
Casualties: Fatalities: 11 / Occupants: 14
Component Affected: PS-1 flying boat’s nose and control surfaces.PS-1 flying boat’s nose and control surfaces.
Category: Accident
A Shin Meiwa PS-1 flying boat, operated by the Japan Maritime Self Defence Force (JMSDF), experienced a sudden and unexpected loss of control during a display practice. The aircraft executed a low-speed pass down the runway at 100 ft and 65 kts, utilizing boundary layer control (BLC) and subsequently initiated a right turn. A sudden nose drop resulted in impact with a protective bank surrounding an ammunition storage building.A Shin Meiwa PS-1 flying boat, operated by the Japan Maritime Self Defence Force (JMSDF), experienced a sudden and unexpected loss of control during a display practice. The aircraft executed a low-speed pass down the runway at 100 ft and 65 kts, utilizing boundary layer control (BLC) and subsequently initiated a right turn. A sudden nose drop resulted in impact with a protective bank surrounding an ammunition storage building.
Description
A Shin Meiwa PS-1 flying boat, operated by the Japan Maritime Self Defence Force (JMSDF) was involved in a display practice for an upcoming air show. After a two-ship flypast PS-1 5801 broke formation to display solo. The PS-1 made a pass down the runway at 100 ft and 65 kts, demonstrating low-speed handling with boundary layer control (BLC) on. At the end of the pass the PS-1 started a right turn but the nose dropped suddenly and the aircraft hit a protective bank around an ammunition storage building. Weather at the time of the accident was 1 kt wind and 10 km visibility.
Source of Information
http://www.flightglobal.com/pdfarchive/view/1983/1983%20-%201220.htmlhttp://www.flightglobal.com/pdfarchive/view/1983/1983%20-%201220.htmlPrimary Cause
Boundary layer control (BLC) malfunction during a low-speed maneuver.Boundary layer control (BLC) malfunction during a low-speed maneuver.Share on:
