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NTSB Report
March 31, 1991 · Robinson R-22 BETA · N2631V
Seattle, WA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 31, 1991
Injury Outcomes
1 injury (1 fatality)
Location
Seattle, WA
Aircraft
Robinson R-22 BETA
Tail Number
N2631V
Operator
Classic Helicopter
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
SEA91FA075
THE ACFT WAS ON VFR FINAL APPR AT 100 FT AGL WHEN IT ROLLED OVER, DESCENDED UNCONTROLLED, AND IMPACTED THE ROOF OF A WHSE. THE IMPACT BROKE A SKYLIGHT IN THE ROOF AND THE ACFT FELL THROUGH THE HOLE, COMING TO REST INSIDE THE WHSE. ROCKS, HAND TOOLS, AND A LARGE UNSECURED TREE STUMP WERE IN THE ACFT CABIN. THE STUMP HAD A FRESH SCAR AND BLACK PAINT SMEARS ADJACENT TO THE CYCLIC CONTROL STICK. A SCREW HEAD IN THE BLACK CYCLIC STICK WAS FILLED WITH WOOD SPLINTERS.
NTSB Probable Cause
THE LOSS OF CONTROL IN FLIGHT BY THE PILOT DUE TO HIS IMPROPER PREFLIGHT PREPARATION IN FAILING TO SECURE CARGO WHICH SHIFTED IN FLIGHT AND INTERFERED WITH THE MOVEMENT OF THE CYCLIC CONTROL STICK.
Full Narrative
THE ACFT WAS ON VFR FINAL APPR AT 100 FT AGL WHEN IT ROLLED OVER, DESCENDED UNCONTROLLED, AND IMPACTED THE ROOF OF A WHSE. THE IMPACT BROKE A SKYLIGHT IN THE ROOF AND THE ACFT FELL THROUGH THE HOLE, COMING TO REST INSIDE THE WHSE. ROCKS, HAND TOOLS, AND A LARGE UNSECURED TREE STUMP WERE IN THE ACFT CABIN. THE STUMP HAD A FRESH SCAR AND BLACK PAINT SMEARS ADJACENT TO THE CYCLIC CONTROL STICK. A SCREW HEAD IN THE BLACK CYCLIC STICK WAS FILLED WITH WOOD SPLINTERS.
Flight
Event TypeAccident
Event Time15:02 PST
Nearest AirportBoeing Field (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionGrd
Aircraft
AircraftRobinson R-22 BETA
Tail NumberN2631V
Aircraft CategoryHeli
DamageDestroyed
OperatorClassic Helicopter
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2C · Reciprocating · 160
Seats2
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 37 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind160° @ 7 kt
Visibility20 sm
CeilingBroken clouds 10000 ft
Temperature / Dew Point61 F / 46
Altimeter29.00 inHg
Weather SourceWIT