LAX88FA033

NTSB accident investigation · Bell 206L-3 · Rialto, CA · November 19, 1987

Accident · Serious injuriesField investigationFinal report
Date
November 19, 1987, 15:45 local (23:45 UTC)
Place
Rialto, CA
Injuries
1 serious, 1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N66WLBell 206L-3
Weather
Visual (VMC) · Day
Status
Completed · report September 1, 1989
Report
Approved by Office Director
FAA report
19871119066679A
Case key
25788

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightTakeoff
Tie down - improperOther maintenance personnelCause
Aircraft preflight - inadequatePilot in commandCause
Tie down - not identifiedPilot in commandCause
Aircraft performance,takeoff capability - movement restrictedFactor
Vertical takeoff - not possible
In flight collision with terrain/waterTakeoff

Analysis

The pilot lost control of the recently painted helicopter during the takeoff. The paint shop personnel had moved the helo to a airplane parking spot. The helo skids straddled the tie-down chains. Two wing tie-down chains were incorrectly attached to the right landing gear skid. One witness indicated that he walked around the helo examining the new paint before the arrival of the plt and pax. He stated that he did not notice any tie-down chains on the acft. The plt did not notice the tie-down chains during the preflight check and did not remove them. The chains were attached without tension. As the helo came to a hover, the slack was taken up. With the right skid tube tethered, the helo rolled right allowing the main rotor blades to strike the ground. Ac 20-35C states, 'fasten the tie-down ropes to the fuselage mooring points and extend them to the ground mooring anchors'. The chains were dark brown in color and did not clearly contrast with the asphalt surface.

Aircraft

Registration
N66WL
Reported as
Bell 206L-3
Category
Helicopter
Serial number
51041
Airframe hours
817
Engine
Allison 250-C30, 435 horsepower, turbo shaft
Damage
Substantial damage
Flight
Positioning · Part 91
Operator
William Lyon Company
Registered owner
William Lyon Co.
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
100 hour · August 28, 1987 · 90 hours before
Departed
L67 · Rialto, CA
Destination
SNA · Santa Ana, CA
Airport
L67 · Miro Field

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
28
Certificates
Commercial, Private, Flight instructor
Airplane ratings
Single-engine land
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
2,261 total · 1,070 in this make and model · 2,100 as pilot in command · 125 in the last 90 days · 35 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 10 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
ONT, 11 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.