CHI84LA340

NTSB accident investigation · Hiller 12E · Big Lake, MN · August 7, 1984

Accident · No injuriesLimited investigationFinal report
Date
August 6, 1984, 19:30 local (Aug 7, 1984, 00:30 UTC)
Place
Big Lake, MN
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N67115Hiller 12E
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19840806038499A
Case key
12734

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

On this page

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 engine power(total) - nonmechanicalTakeoff - initial climb
Fluid,fuel - waterFactor
Maintenance,service of aircraft/equipment - improperPilot in commandCause
Aircraft preflight - inadequatePilot in commandCause
Forced landingLanding - flare/touchdown
Power on landing - not possiblePilot in commandCause
Roll overLanding - flare/touchdown

Analysis

The acft lost power during takeoff and rolled over during a forced landing. The pilot said the engine 'sucked up accumulated water into the gas line.' He later said water was found in the refueling truck. His recommendation: 'keep water out of gas.'

Aircraft

Registration
N67115
Reported as
Hiller 12E
Category
Helicopter
Serial number
1151
Airframe hours
9,000
Engine
Lycoming VO-540-BIA, 305 horsepower, reciprocating
Damage
Destroyed
Flight
Other work use · Part 137
Operator
Thomas G. Pfeffer
Registered owner
Thomas Pfeffer
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 15, 1984

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
35
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
15,680 total · 1,600 in this make and model · 126 as pilot in command · 129 in the last 90 days · 131 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 4 knots, gusting 4
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F

FAA reports on this event · 1

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