20100821046729A

Accident · Substantial damage

FAA accident report · Piper J3C-65 · Williamstown, NJ · August 21, 2010

Date
August 21, 2010 · 11:00 local
Place
Williamstown, NJ
Airport
Southern Cross
Phase of flight
Takeoff: Climb Out
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N209RC
NTSB investigation
NTSBERA10LA437
Reported as
Piper J3C-65
Reported engine
Continental A-65
People aboard
1
Fatal injuries
0
Other injuries
1
Pilot’s certificate
Private pilot
Pilot’s flight hours
1,000 total50 in this make and model1 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Pilot attempted a take off from Southern Cross Airport. He stated the engine lost power in the climb. The prop hit a tree and the aircraft crashed into a car that was parked at a house at the end of the departure runway. Inspection of the spark plugs using a champion pneumatic spark tester set at the prescribed 80 p.s.I. Showed the plugs that were installed in #1 cylinder exhibited minimal sparks which was yellow in color and very weak. All of the lower cylinder plugs were found to be oil soaked and tested below the normal range. This aircraft engine was assembled with overhauled cylinders in 2006. At the time of the accident the engine only had an additional six hours and four tenths time since cylinder installation. It appears that the rings were not seated in the cylinders due to low aircraft usage/infrequent flights.

As the FAA filed it

PILOT ATTEMPTED A TAKE OFF FROM SOUTHERN CROSS AIRPORT. HE STATED THE ENGINE LOST POWER IN THE CLIMB. THE PROP HIT A TREE AND THE AIRCRAFT CRASHED INTO A CAR THAT WAS PARKED AT A HOUSE AT THE END OF THE DEPARTURE RUNWAY. INSPECTION OF THE SPARK PLUGS USING A CHAMPION PNEUMATIC SPARK TESTER SET AT THE PRESCRIBED 80 P.S.I. SHOWED THE PLUGS THAT WERE INSTALLED IN #1 CYLINDER EXHIBITED MINIMAL SPARKS WHICH WAS YELLOW IN COLOR AND VERY WEAK. ALL OF THE LOWER CYLINDER PLUGS WERE FOUND TO BE OIL SOAKED AND TESTED BELOW THE NORMAL RANGE.THIS AIRCRAFT ENGINE WAS ASSEMBLED WITH OVERHAULED CYLINDERS IN 2006. AT THE TIME OF THE ACCIDENT THE ENGINE ONLY HAD AN ADDITIONAL SIX HOURS AND FOUR TENTHS TIME SINCE CYLINDER INSTALLATION. IT APPEARS THAT THE RINGS WERE NOT SEATED IN THE CYLINDERS DUE TO LOW AIRCRAFT USAGE/INFREQUENT FLIGHTS.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.