ERA23LA002

NTSB accident investigation · Aeronca 7AC · Murray, KY · October 2, 2022

Accident · Serious injuriesClass 4 · LimitedFinal report
Date
October 2, 2022, 10:30 local (15:30 UTC)
Place
Murray, KY
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N3005EAeronca 7AC
Defining event
Takeoff: Flight control sys malf/fail
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20221002016439A
Case key
106053

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 incorrect (reverse) rigging of the elevator cables by maintenance personnel and their subsequent failure to verify that the rigging was correct during post-maintenance checks and the pilot's inadequate preflight check.

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.

Flight control system: elevator control systemAircraft › Aircraft systems · Incorrect service/maintenanceAeronca 7AC: 1 caseAll aircraft: 74 casesProbable cause
Flight control system: elevator control systemAircraft › Aircraft systems · Inadequate inspectionAeronca 7AC: 1 caseAll aircraft: 74 casesProbable cause
Maintenance: replacementPersonnel issues › Task performance · Maintenance personnelAeronca 7AC: 2 casesAll aircraft: 70 casesProbable cause
Inspection: post maintenance inspectionPersonnel issues › Task performance · Maintenance personnelAeronca 7AC: 1 caseAll aircraft: 57 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · PilotAeronca 7AC: 3 casesAll 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 airplane had been in maintenance for repair work on the airplane’s tail section. On the first flight after the completed work, following a preflight inspection and engine run-up, the pilot taxied the airplane to the runway for departure. During the takeoff roll, when the pilot applied forward stick controls to raise the tail, the tail did not rise, and the airplane instead “shot straight up, stalled, then descended nose-first onto the runway.” Examination of the airplane by a Federal Aviation Administration inspector revealed substantial damage to the fuselage. The inspector also noted that the elevator control cables were installed incorrectly such that the elevator moved in the direction opposite to that commanded.

Aircraft

Registration
N3005E
Reported as
Aeronca 7AC
Category
Airplane
Serial number
7AC-6591
Built
1946
Airframe hours
3,363
Engine
Cont Motor C85-12F, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 15, 2021 · 1 hours before
Destination
Same as departure
Airport
CEY · Kyle-Oakley Fld, runway 5, 6,200 × 100 ft, grass/turf
Equipment
None

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
Serious
Certificates
Private, Commercial
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
October 23, 2021
Seat
Front
Restraint
Lap only
Flight hours
2,900 total · 125 in this make and model · 2,740 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 13 knots, gusting 20
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 37 °F
Altimeter
30.19 inHg
Observed at
CEY
METAR
KCEY 021735Z AUTO 35013G20KT 10SM CLR 23/03 A3019 RMK AO1

Docket · 5

The files NTSB released with the investigation on May 11, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 8.2 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.