ASN Wikibase Occurrence # 226612
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| Date: | Wednesday 26 June 2019 |
| Time: | 16:37 LT |
| Type: |  McDonnell Douglas MD 500E (369E) |
| Owner/operator: | South Carolina Law Enforcement Division (SLED) |
| Registration: | N500SC |
| MSN: | 0334E |
| Year of manufacture: | 1989 |
| Total airframe hrs: | 11719 hours |
| Engine model: | Rolls Royce RR250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Summerville Airport (KDYB), SC -
 United States of America
|
| Phase: | Taxi |
| Nature: | Aerial patrol |
| Departure airport: | Summersville, SC (DYB) |
| Summersville, SC (DYB) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot, seated in the left seat, reported that he taxied and landed the helicopter on a taxiway after completing a mission. After landing, the copilot, seated in the right seat, disembarked with the passenger to request fuel from the fixed-base operator. The copilot returned to the helicopter without boarding and instructed the pilot to reposition the helicopter to the airport's refueling station because the fuel truck was inoperative. Once the copilot was clear of the helicopter, the pilot brought the helicopter to a hover, but the helicopter began to spin clockwise. He then applied left pedal, but the helicopter continued to spin and climbed about 7 ft above ground level. The pilot stated that, after two revolutions, he realized that the right-seat, left antitorque pedal was "chocked" and added that he was not aware that the copilot had "chocked" the pedals. He immediately initiated an autorotation, but the helicopter's tail rotor and main rotor blades struck the ground. The copilot reported that, after exiting the cockpit, while the pilot had positive control of the flight controls, he chocked the pedals on the right side by removing the left antitorque pedal, rotating it 180°, and reinstalling it, which prevented full travel of the left antitorque pedal on both sides of the cockpit. He added that he did not tell the pilot he had chocked the pedals and that he did not know why he chocked the pedals. The helicopter sustained substantial damage to the main and tail rotor systems and tailboom. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
Probable Cause: The copilot's disabling of the flight controls of an operating helicopter without telling the pilot on the controls, which resulted in a subsequent loss of control and collision with terrain.
Accident investigation:
 |
|
Sources:
FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=500SC
NTSB GAA19CA403
Location
Images:
Photo: FAA
Media:
#BREAKING The Dorchester Co. Sheriff’s Office is responding to a helicopter crash near the Summerville Airport #chsnews @WCBD pic.twitter.com/lnGoqNUHSf
— Deanne Roberts (@DeanneWCBD) June 26, 2019
Pilot injured after SLED helicopter crashes at Summerville Airport https://t.co/cYCysEbaxz
— Tri-County FOP #3 (@scfop3) June 27, 2019
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Jun-2019 08:15 | gerard57 | Added |
| 27-Jun-2019 08:32 | gerard57 | Updated [Aircraft type, Operator, Phase, Source, Damage] |
| 27-Jun-2019 10:19 | Aerossurance | Updated [Aircraft type, Phase, Nature, Source, Embed code, Narrative] |
| 27-Jun-2019 11:13 | RobertMB | Updated [Registration, Cn, Location, Source, Embed code] |
| 27-Mar-2021 15:30 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Embed code, Damage, Narrative, Category, Accident report] |
| 27-Mar-2021 15:52 | harro | Updated [Nature, Source, Embed code, Narrative, Photo] |
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