CEN20LA006

NTSB accident investigation · Beech 36 · Waukesha, WI · October 8, 2019

Accident · No injuriesClass 3 · LimitedFinal report
Date
October 8, 2019, 14:45 local (19:45 UTC)
Place
Waukesha, WI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N396JGBeech 36
Defining event
Takeoff: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Central Region
Parties
FAA FSDO, Rolls-Royce
FAA report
20191008014349A
Case key
100402

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

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Probable cause

A total loss of engine power for undetermined reasons.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Engine (turbine/turboprop)Aircraft › Aircraft power plant · Unknown/Not determinedRaytheon A36: 1 caseAll aircraft: 67 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

Shortly after departure, the turbine engine lost total power. The pilot attempted to land on the remaining runway, but overran the departure end and collided with terrain. The left wing sustained substantial damage. The turbine engine and associated governor were removed from the airplane and examined. No anomalies were detected with the engine or components which would have contributed to the loss of engine power. The reason for the loss of engine power could not be determined.

Factual narrative

On October 8, 2019, about 1445 central daylight time, a Beech A36 airplane, N396JG, was substantially damaged when it was involved in an accident near Waukesha, Wisconsin. The pilot and passenger were uninjured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. According to information obtained by Federal Aviation Administration inspectors, the airplane departed the Waukesha County Airport (KUES), Waukesha, Wisconsin, using runway 18. About 200 ft above ground level, while still over the departure end of the runway, the engine lost total power. The pilot attempted to land on the remaining runway but overran the departure end. The airplane continued over an embankment and collided with terrain, which resulted in substantial damage to the left wing. The airplane was equipped with an Allison 250-B17F/2 engine via Supplemental Type Certificate on February 15, 2003. The engine was examined on the airframe before being removed for a detailed examination. Examination of the engine did not find any anomalies that would have contributed to the loss of engine power. The propeller overspeed governor and propeller power turbine governor were also tested. No anomalies were detected with either governor.

Aircraft

Registration
N396JG
Reported as
Beech 36 (A36)
Category
Airplane
Serial number
E-3396
Built
2001
Airframe hours
1,346.5
Engine
Rolls-Royce M250-B17F/2, 450 horsepower, turbo prop
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 6, 2019
Airport
UES · Waukesha County

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
50
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Seat
Left
Flight hours
4,707 total · 882 in this make and model · 45 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 39 °F
Altimeter
30.14 inHg
Observed at
KUES, 1 nm away

Docket · 4

The files NTSB released with the investigation on March 11, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.4 MB in all.

FAA reports on this event · 1

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