CHI98LA012

NTSB accident investigation · Hiller UH-12E · Liberty, NE · October 9, 1997

Accident · No injuriesLimited investigationFinal report
Date
October 9, 1997, 17:00 local (22:00 UTC)
Place
Liberty, NE
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N4027LHiller UH-12E
Weather
Visual (VMC) · Day
Status
Completed · report February 28, 2000
Report
Approved by Office Director
FAA report
19971009031219A
Case key
10763

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

On this page

Probable cause

A loss of engine power for undetermined reasons.

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 powerClimb
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
Roll overLanding
Terrain condition - drop-off/descending embankmentFactor

Analysis

The pilot reported, 'the aircraft was preflighted, started, and warmed up with temperatures and pressures gauges in the green.' Following the engine warm-up the pilot began a hover, cleared the area, and proceeded to takeoff. The pilot indicated in his report that, 'approximately around 150 feet the engine stopped producing power.' The pilot stated that he, 'was approximately between 30 and 50 mph, tried to quick-stop, was too low and did not have enough altitude to autorotate the aircraft.' The pilot proceeded to execute a run-on landing, which resulted in the aircraft sliding 40 feet after contact with the ground. The pilot reported that the aircraft, 'came to a terrace and very slowly rolled onto its side.' Examination of the aircraft did not disclose evidence of mechanical malfunction.

Factual narrative

On October 9, 1997, at 1700 central daylight time, a Hiller UH-12E, N4027L, received substantial damage after impacting terrain during a forced landing following a total loss of engine power on initial climb out. The commercial pilot reported no injuries. The personal 14 CFR Part 91 flight was operating in visual meteorological conditions. No flight plan was on file. The flight departed from a private airstrip in Liberty, Nebraska, at 1655.

In a written statement, the pilot reported, "the aircraft was preflighted, started, and warmed up with temperatures and pressures in the green." Following the engine warm-up the pilot began a hover, cleared the area, and proceeded to takeoff. The pilot indicated in his report that, "approximately around 150 feet the engine stopped producing power." The pilot stated that he, "was approximately between 30 and 50 mph, tried to quick-stop, was too low and did not have enough altitude to autorotate the aircraft." The pilot proceeded to execute a run-on landing, which resulted in the aircraft sliding 40 feet after contact with the ground. The pilot reported that the aircraft, "came to a terrace and very slowly rolled onto its side."

A post accident investigation, conducted by the Federal Aviation Administration, disclosed no discrepancies in the fuel system, engine control system, valve train, and accessory section. A fuel sample was taken, which showed proper color (blue) and lacking contaminating material. The carburetor, fuel pump, and magnetos were removed for operational tests. Functional tests of the removed components established proper operation.

Aircraft

Registration
N4027L
Reported as
Hiller UH-12E
Category
Helicopter
Serial number
5074
Airframe hours
2,638
Engine
Lycoming VO-540-C2A, 310 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Charles I. Thomas
Airworthiness certificate
Standard, Normal
Airport
PVT · Thomas Airport

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
62
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
21,000 total · 2,000 in this make and model · 5 in the last 90 days · 4 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
15 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 39 °F
Altimeter
30.00 inHg
Observed at
BIE, 15 nm away

FAA reports on this event · 1

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

Other investigations on N4027L · 1

Matched to the same aircraft by N-number and date.