CEN21LA168

NTSB accident investigation · Piper J3C-65 · Justin, TX · March 27, 2021

Accident · No injuriesClass 3 · LimitedFinal report
Date
March 27, 2021, 16:00 local (21:00 UTC)
Place
Justin, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N42769Piper J3C-65
Defining event
Approach-VFR pattern base: 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
FAA report
20210327011909A
Case key
102811

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 total loss of engine power due to carburetor icing.

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.

Temp/humidity/pressure: conducive to carburetor icingEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomePiper J3C-65: 8 casesAll aircraft: 435 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 was conducting a local flight. During the approach to landing, he applied carburetor heat on the downwind leg and reduced power on the base leg. When he added power, the engine did not respond; however, the propeller continued to windmill. Unable to glide to the private airfield, he selected a nearby wheatfield for the forced landing, but hit trees on the approach. The airplane came to rest in the trees. Examination of the airplane noted that the fuel tank contained fuel and both wings and fuselage sustained substantial damage. The examination of the engine revealed no evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. The weather conditions at the time of the accident were conducive to the formation of serious carburetor icing at glide (idle) engine power settings. Thus, it is likely before the application of carburetor heat, carburetor ice formed and/or the application of carburetor heat was not sufficient to remove the icing which resulted in a loss of engine power during landing.

Factual narrative

On March 27, 2021, about 1600 central daylight time, a Piper J3C-65 airplane, N42769, was substantially damaged when it was involved in an accident near Justin, Texas. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. According to the pilot he departed a private airfield on a local flight, about 30 minutes before the accident. The pilot added that for the approach to landing, he applied carburetor heat on the downwind leg and reduced power on the base leg. When he added power, the engine did not respond; however, the propeller continued to windmill. Unable to glide to the private airfield, he selected a nearby wheatfield for the forced landing, but hit trees on the approach. The airplane came to rest in the trees. An on-site inspection of the airplane by the responding Federal Aviation Administration (FAA) Inspector noted that the fuel tank contained fuel and both wings and fuselage sustained substantial damage. The airplane was recovered from the trees and placed in the owner’s hangar. The National Transportation Safety Board Investigator-In-Charge conducted an engine examination on April 2, 2021. The examination/engine run of the engine did not identify any pre-impact anomalies that would have precluded normal operations. A review of the icing probability chart contained in FAA Special Airworthiness Information Bulletin CE-09-35 revealed that the weather conditions at the time of the accident were "conducive to serious icing at glide [idle] power."

Aircraft

Registration
N42769
Reported as
Piper J3C-65
Category
Airplane
Serial number
15080
Built
1945
Airframe hours
3,668.9
Engine
Continental C90, 90 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 21, 2021
Destination
Same as departure

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
64
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
August 3, 2019
Seat
Rear
Restraint
Lap only
Flight hours
1,077 total · 594 in this make and model · 989 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 6 knots
Visibility
10 statute miles
Lowest ceiling
5,500 ft broken
Temperature
75 °F, dew point 57 °F
Altimeter
29.82 inHg
Observed at
KDTO

Docket · 5

The files NTSB released with the investigation on January 5, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.0 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.