ERA20LA018

NTSB accident investigation · Beech N35 · Madisonville, TN · October 18, 2019

Accident · No injuriesClass 3 · LimitedFinal report
Date
October 18, 2019, 15:30 local (19:30 UTC)
Place
Madisonville, TN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N564TBeech N35
Defining event
Approach-VFR go-around: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Eastern Region Aviation
Parties
FAA/ FSDO
FAA report
20191018022389A
Case key
100473

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

The pilot's unstable approach and delayed decision to go-around. Contributing to the accident was the unporting of the fuel supply following a forward slip maneuver during the approach, which resulted in the loss of engine power during the go-around.

Findings · 5

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.

Action: delayed actionPersonnel issues › Action/decision · PilotBeech N35: 1 caseAll aircraft: 894 casesProbable cause
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedBeech N35: 2 casesAll aircraft: 1,681 casesProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedBeech N35: 1 caseAll aircraft: 809 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Fluid levelBeech N35: 3 casesAll aircraft: 1,695 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

The pilot reported that, during a simulated loss of engine power landing, the airplane was too fast and high, so he performed a forward slip to the left to increase the descent rate. The airplane touched down on the runway with less than 1/3 of its distance remaining and immediately bounced back into the air. The pilot added power to initiate a go-around; however, the engine did not respond, and the airplane subsequently descended into trees and terrain beyond the departure end of the runway, resulting in substantial damage to both wings. Examination revealed no anomalies with the airframe or engine that would have precluded normal operation, and the engine produced normal power during a test run. Thus, it is likely that the fuel unported from the right tank following the forward slip to the left, and the fuel supply was interrupted as the pilot attempted the go-around. The accident would have likely been prevented if the pilot had performed a go-around earlier during the approach, when he realized that the airplane was too high and too fast to safely land on the available runway.

Factual narrative

On October 18, 2019, about 1530 eastern daylight time, a Beech N35 airplane, N564T, impacted terrain and trees during a go-around at Monroe County Airport (MNV), Madisonville, Tennessee. The private pilot was not injured. The airplane was operated by the pilot as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that during the approach to MNV he decided to perform a training exercise by simulating an engine failure during the landing. He entered the traffic pattern for runway 5 and reduced power to idle; while on final approach he reported that the airplane was "a little fast and a little high" so he performed a forward slip to the left (left rudder application) for a "second or two." He continued the approach and the airplane touched down with about 1,000 ft of the 3,643 ft runway remaining and immediately bounced back into the air. The pilot decided to perform a go-around and applied power; however, the engine did not respond. The airplane flew beyond the departure end of the runway, touched down in grass, and skidded into shrubs and trees. The left and right wings sustained substantial damage. Postaccident, the pilot reported that he believed the slip maneuver "unported fuel from the right tank [selected tank for approach] and prevented the plane from throttling up." He reported that there were no mechanical malfunctions or failures with the airplane. Examination of the airplane by a Federal Aviation Administration inspector found no preimpact mechanical malfunctions or failures that would have precluded normal operation. There were no obstructions or debris found in the fuel system and the engine produced normal power when it was test run. Inspection revealed 17 gallons of fuel in the right tank and 22 gallons in the left tank. The airplane flight manual stated in part: FUEL CELLS Fuel supply is carried in two bladder-type cells with a total capacity of [40 gallons, optional fuel system installed], located in the wings just outboard of the fuselage. Fuel is fed from the cells to a selector valve just forward of the front seat, on the left side, then through a strainer to the fuel pump and the engine. The fuel tank fillers are located in the wing leading edges. Maximum Slip Duration: 30 seconds for airplanes with baffled main fuel cells in both wings.

Aircraft

Registration
N564T
Reported as
Beech N35 (NO SERIES)
Category
Airplane
Serial number
D-6744
Built
1961
Airframe hours
11,026
Engine
Continental IO-470-N, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 2019
Departed
T73 · Lancaster, SC
Destination
MNV · Madisonville, TN
Flight plan
IFR
Airport
MNV · Monroe County, runway 05, 3,643 × 75 ft, asphalt
Equipment
Onboard weather, ADS-B, Satellite tracking device, Stall warning system, Electronic flight bag or handheld device

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
32
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
September 22, 2018
Seat
Left
Restraint
4-point
Flight hours
583 total · 506 in this make and model · 556 as pilot in command · 27 in the last 90 days · 5 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
50° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
68 °F, dew point 37 °F
Altimeter
29.97 inHg
Observed at
KMNV

Docket · 5

The files NTSB released with the investigation on June 10, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.6 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.