N83796

Substantial
Serious

AERONCA 7AC S/N: 7AC-2473

Accident Details

Date
Friday, March 24, 1995
NTSB Number
ATL95LA071
Location
DAUPHIN ISLAND, AL
Event ID
20001207X03075
Coordinates
30.679910, -88.300079
Aircraft Damage
Substantial
Highest Injury
Serious
Fatalities
0
Serious Injuries
2
Minor Injuries
0
Uninjured
0
Total Aboard
2

Probable Cause and Findings

THE PILOT'S IMPROPER USE OF THE RUDDER CONTROL WHICH RESULTED IN A STALL, AND IMPROPER USE OF THE ELEVATOR CONTROL, IN THAT HE MAINTAINED BACK PRESSURE AFTER THE STALL ENTRY, KEEPING THE AIRPLANE IN A STALLED CONDITIONS.

Aircraft Information

Registration
N83796
Make
AERONCA
Serial Number
7AC-2473
Engine Type
Reciprocating
Year Built
1946
Model / ICAO
7AC CH7A
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1

Registered Owner (Historical)

Name
SALE REPORTED
Address
XXXX
Status
Deregistered
City
OKC
State / Zip Code
OK 73125
Country
United States

Analysis

On March 24, 1995, about 1405 central standard time, an Aeronca 7AC, N83796, collided with the water during an uncontrolled descent near Dauphin Island, Alabama. The airplane was operated under the provisions of 14 CFR Part 91, and visual flight rules. A flight plan was not filed for the local, personal flight. The private pilot and his pilot-rated passenger were seriously injured, and the airplane was substantially damaged. Origination of the flight was the Roy E. Ray Airfield at Bayou La Batre, Alabama, about 1335, the same day.

According to witnesses, the airplane was flying about ten feet above the water, and about 150 yards to sea, near Dauphin Island, Alabama. The airplane then climbed abruptly, the engine noise stopped; it nosed over and impacted the water, nearly straight down.

According to the pilot, the airplane was approximately 500 feet above the ocean when he initiated a shallow, ascending left-hand turn, which he described as a "crop-duster turn". The pilot stated that too much left rudder was applied, and the airplane stalled and became inverted. The pilot reduced power and pulled back on the stick. The nose dropped to a near-vertical position and the airplane impacted the water. The pilot stated that he did not believe there to be a malfunction of the controls, nor any other problem with the aircraft.

The airplane was left in approximately ten feet of salt-water for a period of 24 hours. Upon recovery of the airplane, an investigation revealed a separated right aileron push-pull rod assembly. The metallurgist report attributed the cause of the fracture to be a result of reverse bending fatigue. The examination revealed the level of applied stress was high, allowing the rod to separate with relatively few fatigue cycles.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# ATL95LA071