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ASN Wikibase Occurrence # 43273
Last updated: 17 February 2020
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Type:Silhouette image of generic H500 model; specific model in this crash may look slightly different
McDonnell Douglas 369D
Owner/operator:San Diego Sheriff's Dept
Registration: N5200Y
C/n / msn: 1198D
Fatalities:Fatalities: 1 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Location:Santee, CA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Departure airport:El Cajon, CA (SEE)
Destination airport:
Investigating agency: NTSB
The sheriff's pilot and qualified observer attempted a takeoff from a hover at a remote canyon in night visual meteorological conditions. The crew was using the helicopter's search light within the previous 15 minutes and the pilot's eyes were not dark adapted. The searchlight was turned off by the observer during the takeoff and the pilot became disoriented. The helicopter descended vertically, struck the ground, and bounced over 100 feet rearward. The public-use agency's training program did not provide for night recurrent emergency procedure training, recurrent night physiology training, or crew resource management training for night flight. CAUSE: Spatial disorientation and temporary visual impairment that led to a loss of aircraft control as result of difficulty to light adaptivity. Contributing was the crew coordination and inadequate night flight recurrency training.



Revision history:

24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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