CEN20CA332

NTSB accident investigation · Piper PA28R · Englewood, CO · August 8, 2020

Accident · No injuriesClass 4 · Data collectionFinal report
Date
August 8, 2020, 11:00 local (17:00 UTC)
Place
Englewood, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4964SPiper PA28R
Defining event
Landing-flare/touchdown: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
FAA
FAA report
20200808013879A
Case key
101769

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 flight instructor did not maintain a proper approach path and landing flare during a landing with a tailwind, which resulted in a hard landing and damaged landing gear. During the subsequent landing with damaged landing gear, the flight instructor lost directional control which resulted in a runway excursion and collision with objects.

Findings · 6

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · Instructor/check pilotPiper PA-28R-200: 29 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-28R-200: 5 casesAll aircraft: 809 casesProbable cause
Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-28R-200: 11 casesAll aircraft: 1,285 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-28R-200: 1 caseAll aircraft: 594 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-28R-200: 12 casesAll aircraft: 3,958 casesProbable cause
Object/animal/substance: runway/taxi/approach lightEnvironmental issues › Physical environment · Effect on operationPiper PA-28R-200: 2 casesAll aircraft: 106 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 flight instructor was demonstrating a short approach and touch-and-go landing to the student pilot in a complex airplane. During the final approach, the flight instructor was unable to correct for a quartering tailwind and the airplane landed sideways on the left main landing gear. The flight instructor stated that "[the landing] felt a bit unusual, but the approach had been stable and the landing wasn't that bad..." The airplane took off and the landing gear would not retract. After troubleshooting the problem and declaring an emergency, the flight instructor landed the airplane with an unsafe landing gear indication. After touchdown, the left main landing gear collapsed, and the flight instructor lost directional control. The airplane impacted taxiway lights and came to rest upright adjacent to the runway. Postaccident examination showed the airplane sustained substantial damage to the left wing. Further examination of the left main landing gear and wing revealed overload damage to the landing gear wing attachment. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The flight instructor was demonstrating a short approach and touch-and-go landing to the student pilot in a complex airplane. During the final approach, the flight instructor was unable to correct for a quartering tailwind and the airplane landed sideways on the left main landing gear. The flight instructor stated that "[the landing] felt a bit unusual, but the approach had been stable and the landing wasn't that bad..." The airplane took off and the landing gear would not retract. After troubleshooting the problem and declaring an emergency, the flight instructor landed the airplane with an unsafe landing gear indication. After touchdown, the left main landing gear collapsed, and the flight instructor lost directional control. The airplane impacted taxiway lights and came to rest upright adjacent to the runway. Postaccident examination showed the airplane sustained substantial damage to the left wing. Further examination of the left main landing gear and wing revealed overload damage to the landing gear wing attachment. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N4964S
Reported as
Piper PA28R (200)
Category
Airplane
Serial number
28R-35684
Built
1970
Airframe hours
3,816
Engine
Lycoming IO-360-C1C, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 11, 2020 · 28 hours before
Departed
APA · Englewood, CO
Destination
APA · Englewood, CO
Airport
APA · Centennial Airport, runway 17L, 10,001 × 100 ft, asphalt
Equipment
ADS-B, Stall warning system

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
43
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
June 15, 2020
Seat
Right
Restraint
3-point
Flight hours
1,428 total · 140 in this make and model · 1,381 as pilot in command · 371 in the last 90 days · 104 in the last 30 days · 5 in the last 24 hours
Role
Student pilot
Age
20
Injuries
None
Medical
Class 1, Without waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
230 total · 0 in this make and model · 136 as pilot in command · 67 in the last 90 days · 27 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 25 °F
Altimeter
30.19 inHg
Observed at
APA

Docket · 2

The files NTSB released with the investigation on September 3, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.6 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.