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One other massive platform was misplaced to human components, not recognizing that the airframe was 4000′ too excessive on its last strategy was fairly a factor.
LANGLEY AIR FORCE BASE, Va. – —
An Air Fight Command Accident Investigation Board accomplished its investigation into an RQ-4B that crashed right into a discipline close to Grand Forks Air Drive Base, North Dakota, August 6, 2021.
Round 6:16 a.m. native time, the plane was flying a mission within the native navy working space when the mission management ingredient skilled a workstation lockup, requiring the plane to return to base on an autonomous, preprogrammed route. Nonetheless, the plane didn’t descend as deliberate as a result of the mission management ingredient pilot did not sever the bottom communications interface with the RQ-4 earlier than it reached the preliminary strategy repair. This initiated the plane’s autonomous missed strategy route.
Because the plane started the missed strategy route, it descended, passing over the ultimate strategy repair. When the plane handed the ultimate strategy repair, the mission management ingredient pilot disconnected the bottom communications interface. Quickly thereafter, a second pilot within the launch and restoration ingredient and an teacher pilot reestablished reference to the plane.
The launch and restoration ingredient pilot didn’t configure his workstation in a well timed method, delaying constructive management of the plane. As an alternative of commanding a brand new flight path to the plane, the pilot commanded an altitude override command, which resulted within the RQ-4 being roughly 4,000 ft too excessive on the last strategy repair. Neither the launch and restoration ingredient pilot nor the teacher pilot was conscious of the discrepancy in altitude.
Moreover, the launch and restoration ingredient pilot and the teacher pilot weren’t conscious of the missed strategy logic, which required beginning a brand new flight route after crossing the ultimate strategy repair a second time. The plane commenced an strategy to land at Grand Forks Air Drive Base, however overshot the bottom and crashed right into a farm discipline 6.8 miles north of the runway.
The AIB president discovered that the reason for the crash was each the pilot’s incorrect number of plane flight instructions, which resulted within the plane’s managed flight into terrain, and the teacher pilot’s failure to offer adequate inputs to the pilot to stop the plane’s managed flight into terrain.
Moreover, the president discovered that the mission management ingredient pilot did not comply with established procedures, ensuing within the plane’s delayed descent and preprogrammed number of a go-around/missed strategy route, considerably contributing to the mishap. Equally, the pilot workstation lockup, together with the dearth of documented procedures concerning requesting quite a few detailed standing requests inside a brief timeframe, resulted within the mission management ingredient pilot’s incapability to positively management the plane, ensuing within the plane’s execution of preprogrammed logic and return to base, which considerably contributed to the mishap.
The plane, valued at roughly $64 million when acquired in 2012, was destroyed. There have been no reported accidents or fatalities.
For extra data, contact Air Fight Command Public Affairs at (757) 764-5007 or by way of e-mail at [email protected]
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