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NTSB Final Report: San Diego, CA

 

Location:

San Diego, CA

Accident Number:

GAA19CA519

Date & Time:

08/27/2019, 1410 PDT

Registration:

N218GH

Aircraft:

Bell 206

Aircraft Damage:

Substantial

Defining Event:

Dynamic rollover

Injuries:

2 None

Flight Conducted Under:

Part 91: General Aviation - Business


Analysis

The pilot reported that, after landing the helicopter on the landing platform, he decided to reposition it on the platform. He said that he increased the collective and that it "felt as if the nose was turning or yawing to the right." To correct the right yaw, he applied left pedal, but the helicopter continued moving right. The helicopter rolled to the right, the main rotor blades struck the ground, and the helicopter came to rest on its right side. The helicopter sustained substantial damage to the main and tail rotor drive systems. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be: The pilot's failure to maintain yaw and pitch control while repositioning the helicopter, which resulted in dynamic rollover.

 

Findings

Aircraft

Yaw control - Not attained/maintained (Cause)

Pitch control - Not attained/maintained (Cause)

Personnel issues

Aircraft control - Pilot (Cause)

Factual Information

History of Flight

Landing

Dynamic rollover (Defining event)

 

 

Pilot Information

Certificate:

Commercial

Age:

54, Male

Airplane Rating(s):

None

Seat Occupied:

Right

Other Aircraft Rating(s):

Helicopter

Restraint Used:

 

Instrument Rating(s):

None

Second Pilot Present:

No

Instructor Rating(s):

None

Toxicology Performed:

No

Medical Certification:

Class 2 With Waivers/Limitations

Last FAA Medical Exam:

07/17/2019

Occupational Pilot:

Yes

Last Flight Review or Equivalent:

08/10/2018

Flight Time:

(Estimated) 2313 hours (Total, all aircraft), 392 hours (Total, this make and model), 2238 hours (Pilot In Command, all aircraft), 85 hours (Last 90 days, all aircraft), 22 hours (Last 30 days, all aircraft)

 

 

Aircraft and Owner/Operator Information

Aircraft Make:

Bell

Registration:

N218GH

Model/Series:

206 B

Aircraft Category:

Helicopter

Year of Manufacture:

1981

Amateur Built:

No

Airworthiness Certificate:

Other

Serial Number:

3470

Landing Gear Type:

Skid

Seats:

4

Date/Type of Last Inspection:

08/08/2019, 100 Hour

Certified Max Gross Wt.:

3200 lbs

Time Since Last Inspection:

 

Engines:

1 Turbo Shaft

Airframe Total Time:

15412 Hours as of last inspection

Engine Manufacturer:

Rolls Royce

ELT:

C126 installed, not activated

Engine Model/Series:

250C20

Registered Owner:

Helicopters Unlimited Llc

Rated Power:

420 hp

Operator:

Angel City Air, Inc.

Operating Certificate(s) Held:

None

 

Meteorological Information and Flight Plan

Conditions at Accident Site:

Visual Conditions

Condition of Light:

Day

Observation Facility, Elevation:

KSEE, 387 ft msl

Distance from Accident Site:

0 Nautical Miles

Observation Time:

2120 UTC

Direction from Accident Site:

255°

Lowest Cloud Condition:

Clear

Visibility

10 Miles

Lowest Ceiling:

None

Visibility (RVR):

 

Wind Speed/Gusts:

9 knots /

Turbulence Type Forecast/Actual:

/

Wind Direction:

230°

Turbulence Severity Forecast/Actual:

/

Altimeter Setting:

29.83 inches Hg

Temperature/Dew Point:

31°C / 17°C

Precipitation and Obscuration:

No Obscuration; No Precipitation

Departure Point:

San Diego, CA (SEE)

Type of Flight Plan Filed:

None

Destination:

San Diego, CA (SEE)

Type of Clearance:

VFR

Departure Time:

1325 PDT

Type of Airspace:

Class D

 

Airport Information

Airport:

Gillespie Field (SEE)

Runway Surface Type:

Concrete

Airport Elevation:

387 ft

Runway Surface Condition:

Dry

Runway Used:

N/A

IFR Approach:

None

Runway Length/Width:

 

VFR Approach/Landing:

Full Stop

 

Wreckage and Impact Information

Crew Injuries:

1 None

Aircraft Damage:

Substantial

Passenger Injuries:

1 None

Aircraft Fire:

None

Ground Injuries:

N/A

Aircraft Explosion:

None

Total Injuries:

2 None

Latitude, Longitude:

32.826111, -116.972500 (est)

 


Administrative Information

Investigator In Charge (IIC):

Michael A Hicks

Report Date:

03/17/2020

Additional Participating Persons:

David Lowther; FAA; San Diego, CA

Publish Date:

03/17/2020

Note:

This accident report documents the factual circumstances of this accident as described to the NTSB.

Investigation Docket:

http://dms.ntsb.gov/pubdms/search/dockList.cfm?mKey=100170





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