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NTSB Report
February 24, 1989 · Robinson R22 · N9076K
Hayward, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 24, 1989
Injury Outcomes
No injuries (2 uninjured)
Location
Hayward, CA
Aircraft
Robinson R22
Tail Number
N9076K
Operator
Skyline Helicopters
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX89LA115
THE PVT PLT & HIS INSTRUCTOR (CFI) DEPARTED OAKLAND ON A VFR INSTRUCTIONAL FLT TO HAYWARD IN A ROBINSON R22 HELICOPTER. THEY LANDED ON TAXIWAY (TWY) 2, THEN TOOK OFF FOR ANOTHER TRAFFIC PATTERN & LANDING. THE CFI THEN INSTRUCTED THE PVT PLT TO MAKE A RUNNING TAKEOFF. DRG THE TAKEOFF GROUND RUN, THE HELICOPTER'S LEFT SKID STRUCK AN ALIGNMENT DEVICE WHICH WAS PROTRUDING ABOVE THE TWY SURFACE. AFTER HITTING THE DEVICE, THE HELICOPTER ENTERED A VIOLENT LEFT YAW & BECAME AIRBORNE. THE CFI WAS ABLE TO ARREST THE YAW, BUT HE COULD NOT STOP A RAPID DESCENT THAT DEVELOPED. SUBSEQUENTLY, THE HELICOPTER'S UNDERCARRIAGE, VERTICAL STABILIZER, RIGHT DOOR & FUSELAGE SKIN WERE DAMAGED. AN INVESTIGATION REVEALED THAT CONTRACTORS HAD RECENTLY PAINTED THE TWY & HAD LEFT THE ALIGNMENT DEVICE PROTRUDING ABOUT 1/2 INCH ABOVE THE SURFACE OF THE TWY.
NTSB Probable Cause
FAILURE OF AIRPORT PERSONNEL TO ASSURE THE TAIWAY WAS FREE OF OBJECTS AFTER THE TAXIWAY WAS PAINTED.
Full Narrative
THE PVT PLT & HIS INSTRUCTOR (CFI) DEPARTED OAKLAND ON A VFR INSTRUCTIONAL FLT TO HAYWARD IN A ROBINSON R22 HELICOPTER. THEY LANDED ON TAXIWAY (TWY) 2, THEN TOOK OFF FOR ANOTHER TRAFFIC PATTERN & LANDING. THE CFI THEN INSTRUCTED THE PVT PLT TO MAKE A RUNNING TAKEOFF. DRG THE TAKEOFF GROUND RUN, THE HELICOPTER'S LEFT SKID STRUCK AN ALIGNMENT DEVICE WHICH WAS PROTRUDING ABOVE THE TWY SURFACE. AFTER HITTING THE DEVICE, THE HELICOPTER ENTERED A VIOLENT LEFT YAW & BECAME AIRBORNE. THE CFI WAS ABLE TO ARREST THE YAW, BUT HE COULD NOT STOP A RAPID DESCENT THAT DEVELOPED. SUBSEQUENTLY, THE HELICOPTER'S UNDERCARRIAGE, VERTICAL STABILIZER, RIGHT DOOR & FUSELAGE SKIN WERE DAMAGED. AN INVESTIGATION REVEALED THAT CONTRACTORS HAD RECENTLY PAINTED THE TWY & HAD LEFT THE ALIGNMENT DEVICE PROTRUDING ABOUT 1/2 INCH ABOVE THE SURFACE OF THE TWY.
Flight
Event TypeAccident
Event Time08:26 PST
Nearest AirportHayward Muni (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRobinson R22
Tail NumberN9076K
Aircraft CategoryHeli
DamageSubstantial
OperatorSkyline Helicopters
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2C · Reciprocating · 124
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 32 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility8 sm
CeilingOvercast 10000 ft
Temperature / Dew Point46 / 45 C
Altimeter30.00 inHg
Observation Time15:45
Weather SourceWFAC