ASN Wikibase Occurrence # 314623
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| Date: | Sunday 4 July 2010 |
| Time: | 02:09 LT |
| Type: |  Eurocopter AS365N3 Dauphin 2 |
| Owner/operator: | Air Methods Corp |
| Registration: | N520CF |
| MSN: | 6537 |
| Year of manufacture: | 1998 |
| Total airframe hrs: | 2570 hours |
| Engine model: | Turbomeca ARRIEL 2C |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Dayton, Ohio -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Lebanon, OH (I68) |
| Huber Heights, OH | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The emergency medical services transport helicopter sustained minor damage when a door window separated in-flight. The pilot dropped a flight manual during cruise flight that impacted the right center door jettison handle, allowing the window to separate and impact the horizontal stabilizer. The required jettison handle guard was not installed. The helicopter's maintenance manual directs that the crew and passenger doors be checked every 600 hours of flight time or every two years. The manual requires the following steps to reinstall the doors, "Install the Plexiglas protective cover." Subsequent to the accident, the helicopter manufacturer issued Safety Information Notices which described the incident and reminded mechanics that while performing routine maintenance procedures, in particular assembly procedures, 'it is important to strictly comply with all applicable maintenance procedures, including the most basic and simple ones, to ensure proper helicopter performance and flight safety.â
Probable Cause: The unintentional movement of the jettison handle in-flight due to the pilot's dropping of a manual that impacted the handle and released the door window, which then impacted the horizontal stabilizer. Contributing to the accident was the jettison handle guard not being installed by maintenance personnel.
Accident investigation:
 |
|
Sources:
NTSB CEN10IA372
History of this aircraft
Other occurrences involving this aircraft
| 26 July 2022 | N520CF | Air Methods Corp (AMC) opf Miami Valley Hospital | 0 | Hamilton, OH | |
sub |
| Collision with pole or wires | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Jun-2023 19:01 | ASN Update Bot | Added |
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