N7236K

Substantial
None

Piper PA-18-150 S/N: 18-127

Accident Details

Date
Sunday, September 13, 1998
NTSB Number
IAD98LA108
Location
OXFORD, CT
Event ID
20001211X11081
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
2
Total Aboard
2

Probable Cause and Findings

The pilot's inability to maintain directional control during the landing roll due to separation of the tailwheel spring assembly.

Aircraft Information

Registration
Make
PIPER
Serial Number
18-127
Engine Type
Reciprocating
Year Built
1950
Model / ICAO
PA-18-150 PA18
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1
Seats
2
FAA Model
PA-18-150

Registered Owner (Current)

Name
SCHWEND BRIAN
Address
PO BOX 45
City
FORSYTH
State / Zip Code
MT 59327-0045
Country
United States

Analysis

On September 13, 1998, at 1857 eastern daylight time, N7236K, a Piper PA-18-150, was substantially damaged when it collided with terrain during landing on runway 36 at the Waterbury-Oxford Airport, Oxford, Connecticut. The certificated private pilot and passenger were not injured. Visual meteorological conditions prevailed and a flight plan was not filed. The local, personal flight was conducted under 14 CFR Part 91.

According to the pilot, "...a three point landing was made-airspeed and flare appeared normal, wind was calm from the north...At touchdown and thereafter aircraft drastically veered to the right. [I] tried to correct with power but aircraft impacted a brushy area... ."

The airplane was examined at the accident site by a Federal Aviation Administration (FAA) Inspector. The examination included the brakes and the flight controls and no anomalies were noted. Examination of the tailwheel revealed the right side tailwheel rudder spring was missing, while the left side was hanging and not connected. The right main gear forward strut was found broken near the forward attach point.

The right main strut forward fitting was sent to the NTSB Laboratory for examination. According to the NTSB Metallurgist, visual examination of the fitting fracture revealed features consistent with tensile shear overstress. No indications of preexisting cracking, significant corrosion or weld discontinuities were observed.

According to the airplane log books, the last annual inspection was completed on September 28, 1997. The airplane had accumulated over 6.5 hours since it was rebuilt in September 1997. Prior to the inspection, the last entry in the log book was dated in 1981.

The pilot reported over 233 hours of total flight experience which included 40 hours in tailwheeled airplanes, and 20 hours in make and model.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# IAD98LA108