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NTSB Report
May 9, 1986 · Mbb BO-105S · N2784N
La Jolla, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 9, 1986
Injury Outcomes
3 injuries (1 serious injury, 2 minor injuries)
Location
La Jolla, CA
Aircraft
Mbb BO-105S
Tail Number
N2784N
Operator
Evergreen Helicopters
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
LAX86LA214
THE PILOT LOST CONTROL OF THE HELICOPTER'S ROTOR SYSTEM DURING THE INITIAL CLIMB PHASE OF THE FLIGHT. THE AIRCRAFT SPUN OUT OF CONTROL AND CRASHED ON AN INTERSTATE HIGHWAY. COMPANY MAINT APPLIED AD-85-26-02 TO DETECT OR PREVENT JAMMING OF ROTORCRAFT CONTROLS IN ACCORDANCE WITH SERVICE BULLETIN MBB BO-105 ON 1/1/86. THE ACFT HAD FLOWN 189 HRS SINCE THE MAINTENANCE WAS PERFORMED.
Full Narrative
THE PILOT LOST CONTROL OF THE HELICOPTER'S ROTOR SYSTEM DURING THE INITIAL CLIMB PHASE OF THE FLIGHT. THE AIRCRAFT SPUN OUT OF CONTROL AND CRASHED ON AN INTERSTATE HIGHWAY. COMPANY MAINT APPLIED AD-85-26-02 TO DETECT OR PREVENT JAMMING OF ROTORCRAFT CONTROLS IN ACCORDANCE WITH SERVICE BULLETIN MBB BO-105 ON 1/1/86. THE ACFT HAD FLOWN 189 HRS SINCE THE MAINTENANCE WAS PERFORMED.
Flight
Event TypeAccident
Event Time03:00 PDT
Nearest AirportScripps Hosp. Helipad (0nm N)
Runway27
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMbb BO-105S
Tail NumberN2784N
Aircraft CategoryHeli
DamageSubstantial
OperatorEvergreen Helicopters
Operating RulePart 91
Engines2
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 317
Seats3
People & Injuries
Injury Summary3 injuries (1 serious injury, 2 minor injuries)
Fatal0
Serious1
Minor2
Uninjured0
Total3
Crew 1Age 37 · Second Class
Conditions
ConditionsVMC
LightDark Night
Wind120° @ 5 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point57 / 54
Altimeter29.00 inHg
Observation Time09:50
Weather SourceWFAC