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NTSB Report
June 18, 2007 · Rallison Rotorway 162F · N203XR
Logan, UT
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
June 18, 2007
Injury Outcomes
No injuries (2 uninjured)
Location
Logan, UT
Aircraft
Rallison Rotorway 162F
Tail Number
N203XR
Operator
Richard D Rallison
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA07CA167
The pilot was maneuvering at low altitude to take pictures of his neighbor's business. Suddenly the helicopter's engine "raced free of load", the needles split and he began an autorotation. The aircraft landed with its right skid up slope, and the helicopter rolled onto its left side. The pilot's postaccident examination of the control panel revealed that he had inadvertently deactivated the aircraft's electric clutch by striking its overhead toggle switch with his head. The helicopter's main rotor blades, one tail rotor blade, right landing skid, left horizontal stabilizer, and the tail boom were bent. The landing skid on the left side collapsed.
NTSB Probable Cause
The total loss of engine power due to the pilot inadvertently deactivating the rotor drive clutch assembly. A contributing factor was the downhill terrain condition where he landed, which exceeded the slope limitations of the helicopter.
Full Narrative
The pilot was maneuvering at low altitude to take pictures of his neighbor's business. Suddenly the helicopter's engine "raced free of load", the needles split and he began an autorotation. The aircraft landed with its right skid up slope, and the helicopter rolled onto its left side. The pilot's postaccident examination of the control panel revealed that he had inadvertently deactivated the aircraft's electric clutch by striking its overhead toggle switch with his head. The helicopter's main rotor blades, one tail rotor blade, right landing skid, left horizontal stabilizer, and the tail boom were bent. The landing skid on the left side collapsed.
Flight
Event TypeAccident
Event Time15:00 MDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRallison Rotorway 162F
Tail NumberN203XR
Aircraft CategoryHeli
DamageSubstantial
OperatorRichard D Rallison
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotorway · 162R · Reciprocating · 150
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 61 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind6 kt, gusting 16 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point28 C
Altimeter30.06 inHg
Observation Time20:51
Weather SourceWFAC