CEN24LA158

NTSB accident investigation · Jacobson SE5A Replica · Luther, OK · April 15, 2024

Accident · No injuriesClass 3 · LimitedFinal report
Date
April 14, 2024, 19:00 local (Apr 15, 2024, 00:00 UTC)
Place
Luther, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N124BMJacobson SE5A Replica
Defining event
Initial climb: Fuel starvation
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Central Region
Parties
Federal Aviation Administration, Oklahoma City Flight Standards District Office
FAA report
20240414003579A
Case key
194091

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 failure to use carburetor heat, which resulted in fuel starvation during the initial climb, a loss of engine power, and impact with terrain.

Findings · 3

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 · Effect on operationJacobson SE5A REPLICA: 1 caseAll aircraft: 435 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · PilotJacobson SE5A REPLICA: 1 caseAll aircraft: 792 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 practicing touch-and-go landings on a private grass airstrip when he experienced a loss of engine power during initial climb. The airplane then descended and impacted terrain near the departure end of the runway. The airplane sustained substantial damage to the left wings. Postaccident examination of the airplane revealed no mechanical anomalies that would have precluded normal airplane operation. Serious carburetor icing conditions at glide power were present at the time of the accident. The pilot stated that he did not use carburetor heat during the flight. Carburetor icing most likely formed during the preceding descent for landing and remained for the accident takeoff.

Factual narrative

On April 14, 2024, at 1900 central daylight time, a Jacobson SE5A airplane, N124BM, was substantially damaged when it was involved in an accident near Luther, Oklahoma. The private pilot was uninjured. The airplane was operated under Title 14 Code of Federal Regulations Part 91 as a personal flight. The pilot was practicing touch-and-go landings on a private grass airstrip when he experienced a loss of engine power during initial climb. The airplane then descended and impacted terrain near the departure end of the runway. The airplane sustained substantial damage to the left wings. Postaccident examination of the airplane revealed no mechanical anomalies that would have precluded normal airplane operation. After the examination, the pilot stated that the loss of engine power was probably due to carburetor ice. He stated that he did not apply carburetor heat during the flight. According to the carburetor probability icing chart, conditions for serious carburetor icing at glide power were present.

Aircraft

Registration
N124BM
Reported as
Jacobson SE5A Replica
Category
Airplane, amateur-built
Serial number
071013
Built
1977
Airframe hours
189.3
Engine
Lycoming O-235-C1, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Pops Space LLC
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · April 6, 2024
Destination
Same as departure
Airport
Private, runway 18, 2,600 × 100 ft, grass/turf

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
69
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
BasicMed
Last flight review
July 18, 2023
Seat
Single
Restraint
4-point
Flight hours
697 total · 0.8 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 11 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 63 °F
Altimeter
29.78 inHg
Observed at
KTIK, 16 nm away
METAR
KTIK 150055Z AUTO 20011KT 10SM CLR 27/17 A2978 RMK AO2 SLP080 T02690174 $

Docket · 4

The files NTSB released with the investigation on February 20, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.8 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.