19970330003889A

Accident · Substantial damage

FAA accident report · Amtr SUPER KOALA · Perry Township, PA · March 30, 1997

Date
March 30, 1997 · 15:20 local
Place
Perry Township, PA
Phase of flight
Normal Cruise
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N4424V
NTSB investigation
NTSBNYC97LA066
Reported as
Amtr Superkoala
Reported engine
ROTAX ROTAX503
People aboard
2
Fatal injuries
2
Pilot’s flight hours
1,475 total20 in this make and model

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.

Witness heard a snap, aircraft spiral in and crashed nose first into ground.(.4)a witness heard the airplane flying overhead, and heard a 'sharp snap.' When he looked, he estimated that the airplane was about 1,500 to 2,500 feet above the ground, descending in a wide 'swirling' motion, counter clockwise. The airplane struck the ground about 2,000 feet from his residence. The homebuilt airplane had been constructed in Florida, and then purchased by another pilot. The new owner trailered the airplane to Pennsylvania, and installed the wings. The airplane was inspected by a FAA inspector, test flown for 40 hours by the accident pilot and the owner, and had an annual inspection performed on it. After the annual inspection, it was again inspected by the FAA inspector, and an airworthiness certificate was issued. About 4 to 5 flight hours later the accident occurred. Examination of the wreckage revealed the right rear jury strut was broken from the rear spar attaching point, with the jury base plate still intact. The two self locking nuts and bolts holding the base plate to the spar were only finger tight. The jury strut connections were not visible through the completed wing I nspection holes. Soem glued areas contained sanding marks, but were not covered with glue.

As the FAA filed it

WITNESS HEARD A SNAP, AIRCRAFT SPIRAL IN AND CRASHED NOSE FIRST INTO GROUND.(.4)A WITNESS HEARD THE AIRPLANE FLYING OVERHEAD, AND HEARD A 'SHARP SNAP.' WHEN HE LOOKED, HE ESTIMATED THAT THE AIRPLANE WAS ABOUT 1,500 TO 2,500 FEET ABOVE THE GROUND, DESCENDING IN A WIDE 'SWIRLING' MOTION, COUNTER CLOCKWISE. THE AIRPLANE STRUCK THE GROUND ABOUT 2,000 FEET FROM HIS RESIDENCE. THE HOMEBUILT AIRPLANE HAD BEEN CONSTRUCTED IN FLORIDA, AND THEN PURCHASED BY ANOTHER PILOT. THE NEW OWNER TRAILERED THE AIRPLANE TO PENNSYLVANIA, AND INSTALLED THE WINGS. THE AIRPLANE WAS INSPECTED BY A FAA INSPECTOR, TEST FLOWN FOR 40 HOURS BY THE ACCIDENT PILOT AND THE OWNER, AND HAD AN ANNUAL INSPECTION PERFORMED ON IT. AFTER THE ANNUAL INSPECTION, IT WAS AGAIN INSPECTED BY THE FAA INSPECTOR, AND AN AIRWORTHINESS CERTIFICATE WAS ISSUED. ABOUT 4 TO 5 FLIGHT HOURS LATER THE ACCIDENT OCCURRED. EXAMINATION OF THE WRECKAGE REVEALED THE RIGHT REAR JURY STRUT WAS BROKEN FROM THE REAR SPAR ATTACHING POINT, WITH THE JURY BASE PLATE STILL INTACT. THE TWO SELF LOCKING NUTS AND BOLTS HOLDING THE BASE PLATE TO THE SPAR WERE ONLY FINGER TIGHT. THE JURY STRUT CONNECTIONS WERE NOT VISIBLE THROUGH THE COMPLETED WING I NSPECTION HOLES. SOEM GLUED AREAS CONTAINED SANDING MARKS, BUT WERE NOT COVERED WITH GLUE.

NTSB investigation

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