ATL04CA169

NTSB accident investigation · Aeronca 7AC · Spring Hope, NC · August 22, 2004

Accident · No injuriesData collectionFinal report
Date
August 22, 2004, 16:48 local (20:48 UTC)
Place
Spring Hope, NC
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N84399Aeronca 7AC
Weather
Visual (VMC) · Day
Status
Completed · report December 3, 2004
Report
Approved by Office Director
Parties
Greensboro FSDO
FAA report
20040822023439A
Case key
60172

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The binding of the right aileron control cable, which resulted in a loss in aileron control, and subsequent collision with trees and terrain.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionClimb
Flt control syst,aileron control cable/rod - binding(mechanical)Cause
Loss of control - in flightClimb
In flight collision with terrain/waterDescent - uncontrolled
Object - tree(s)
Terrain condition - ground

Analysis

The pilot stated that the first flight was uneventful, and that he did not note any mechanical malfunctions with the airplane. The pilot stated upon landing, he dropped off his friend, and another friend got in the airplane for another flight. The pilot stated, he "ground checked the aircraft thoroughly before departure" as well as checked the magnetos, carburetor heat, and flight controls during a run-up, and "everything was normal." The pilot stated that he took off with full power and upon reaching between 80-100 feet over the departure end of runway 17, the airplane flight controls began "feeling stiff," and the airplane began banking right. The pilot stated that excessive pressure on the flight controls was required to keep the wings level, and the airplane also began to lose altitude. The airplane collided with 40-foot trees 1/4 mile beyond and 50 feet to the right of the departure end of runway 17. Post-accident examination of the airplane revealed that both wings were crushed aft against the fuselage and were partially attached at the wing roots. The outboard four feet of the right wing was separated. The left wing strut was separated from the fuselage and wing and crushed. The left main landing gear was separated from the fuselage. Examination of the flight controls revealed full rudder travel was established by manually depressing both right and left rudder pedals and full elevator travel was established by manually moving the control stick forward and aft. When the control stick was manually moved left to right, a binding in the control travel was noted and a clicking sound was heard in the area behind the rear seat. During recovery of the airplane wreckage, it was observed that the right aileron control cable had come off the pulley and was wedged between the pulley and the bracket where the right aileron control cable leaves the fuselage leading into the right wing. The last annual inspection on the airplane was performed on October 1, 2003. Twelve hours had been accumulated on the airplane since the last annual inspection. The annual inspection checklist items, "cables" and "ailerons," were initialed by the authorized inspector (IA) as being performed.

Factual narrative

On August 22, 2004, at 1630 eastern daylight time, N84399, an Aeronca 7AC, registered to and operated by a private owner, collided with trees 1/4 mile from the departure end of runway 17 following a loss of in-flight control during climb near Spring Paths airstrip, Spring Hope, North Carolina. The personal flight was conducted under Title 14 CFR Part 91, and visual flight rules. Visual meteorological conditions prevailed and no flight plan was filed. The pilot and passenger reported minor injuries, and the airplane sustained substantial damage. The local flight originated at Spring Paths airstrip, Spring Hope, North Carolina, on August 22, 2004, at 1629.

According to the pilot, the accident flight was the second flight of the day, during which he was taking friends on a flight around the local area. He stated that the first flight was uneventful, and that he did not note any mechanical malfunctions with the airplane. The pilot stated upon landing, he dropped off his friend, and another friend got in the airplane for another flight. The pilot stated, he "ground checked the aircraft thoroughly before departure" as well as checked the magnetos, carburetor heat, and flight controls during a run-up, and "everything was normal." The pilot stated that he took off with full power and upon reaching between 80-100 feet over the departure end of runway 17, the airplane flight controls began "feeling stiff," and the airplane began banking right. The pilot stated that excessive pressure on the flight controls was required to keep the wings level, and the airplane also began to lose altitude. The airplane collided with 40-foot trees 1/4 mile beyond and 50 feet to the right of the departure end of runway 17.

Post-accident examination of the airplane revealed that both wings were crushed aft against the fuselage and were partially attached at the wing roots. The outboard four feet of the right wing was separated. The left wing strut was separated from the fuselage and wing and crushed. The left main landing gear was separated from the fuselage. Examination of the flight controls revealed full rudder travel was established by manually depressing both right and left rudder pedals and full elevator travel was established by manually moving the control stick forward and aft. When the control stick was manually moved left to right, a binding in the control travel was noted and a clicking sound was heard in the area behind the rear seat. During recovery of the airplane wreckage, it was observed that the right aileron control cable had come off the pulley and was wedged between the pulley and the bracket where the right aileron control cable leaves the fuselage leading into the right wing.

The last annual inspection on the airplane was performed on October 1, 2003. Twelve hours had been accumulated on the airplane since the last annual inspection. The annual inspection checklist items, "cables" and "ailerons," were initialed by the authorized inspector (IA) as being performed.

Aircraft

Registration
N84399
Reported as
Aeronca 7AC
Category
Airplane
Serial number
7ac-3094
Airframe hours
6,031
Engine
Continental C-85-12-F, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 1, 2003 · 12 hours before
Departed
42NC · Spring Hope, NC
Airport
42NC · Spring Paths Airport, runway 17, 2,400 × 50 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
74
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
October 31, 2003
Seat
Front
Flight hours
1,418 total · 1,268 in this make and model · 5 in the last 90 days · 4 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 64 °F
Altimeter
30.03 inHg
Observed at
LHZ, 9 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N84399 · 3

Matched to the same aircraft by N-number and date.