19980513009219A

Accident · Substantial damage

FAA accident report · Amtr Rotorwayexec · Valparaiso, IN · May 13, 1998

Date
May 13, 1998 · 18:10 local
Place
Valparaiso, IN
Airport
Porter County Municipal
Phase of flight
Hovering
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N4561C
NTSB investigation
NTSBCHI98LA152
Reported as
Amtr Rotorwayexec
People aboard
1
Fatal injuries
0
Pilot’s flight hours
3,329 total36 in this make and model57 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.

On may 13, 1998, at 1810 eastern stantard time (EST), a read rotorway executive 90, homebuilt helicopter, N4561C, operated by a commercial pilot, sustained substantial damage when maneuvering during initial hover, the helicopter's right transport wheel and skid caught on the concrete ramp, at Porter County Municipal Airport, Valparaiso, Indiana. The helicopter subsequently rolled over and impacted on the ramp. Visual meteorological conditions prevailed at the time of the accident. The local, personal flight was being conducted under 14 CFR part 91. The pilot reported no injuries. In his written statement, the pilot said that he pushed the helicopter out of the hangar, preflighted it, started it, and warmed it up to operating minimums. "At light on the skids point, all seemed fine." The pilot said that he lifted off the ground to an approximate height of 12 inches. That is when he heard a "clunk" from behind him. The pilot said that he thought that something might have gone through the tail rotor, so he turned the helicopter to the left 180 degrees. Seeing nothing, the pilot decided to set down. At that point, the helicopter pitched over on its right side. The pilot said that he "neglected to remove the transport wheels" before flight. A federal aviation administration (FAA) inspector examined the helicopter in the pilots hangar at Porter County Municipal Airport. Both main rotor blades showed chordwise scratches at approximately mid-span. The outboard tips of both rotor blades were curled upward. The fuselage was bent upward and wrinkled. The cockpit windscreen was broken out. The cockpit interior remained intact. No damage was observed to the seats, control panel, or helicopter controls. The right fin on the tail boom was scraped. The left fin was broken off. The trail rotor showed no damage. The right transport wheel was attached to the right skid. The wheel was bent down and inward, and broken on the outboard side. The left transport wheel was attached to the left skid. The left transport wheel axle and fitting were bent downward approximately 45 degrees. Helicopter flight control continuity was confirmed. No anomalies were found in the engine, engine controls, or other helicopter systems. (-23) counseling conducted by rotorcraft inspector david h. kepple. Pilot neglected to remove ground transport dolly wheels.

As the FAA filed it

ON MAY 13, 1998, AT 1810 EASTERN STANTARD TIME (EST), A READ ROTORWAY EXECUTIVE 90, HOMEBUILT HELICOPTER, N4561C, OPERATED BY A COMMERCIAL PILOT, SUSTAINED SUBSTANTIAL DAMAGE WHEN MANEUVERING DURING INITIAL HOVER, THE HELICOPTER'S RIGHT TRANSPORT WHEEL AND SKID CAUGHT ON THE CONCRETE RAMP, AT PORTER COUNTY MUNICIPAL AIRPORT, VALPARAISO, INDIANA. THE HELICOPTER SUBSEQUENTLY ROLLED OVER AND IMPACTED ON THE RAMP. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT. THE LOCAL, PERSONAL FLIGHT WAS BEING CONDUCTED UNDER 14 CFR PART 91. THE PILOT REPORTED NO INJURIES. IN HIS WRITTEN STATEMENT, THE PILOT SAID THAT HE PUSHED THE HELICOPTER OUT OF THE HANGAR, PREFLIGHTED IT, STARTED IT, AND WARMED IT UP TO OPERATING MINIMUMS. "AT LIGHT ON THE SKIDS POINT, ALL SEEMED FINE." THE PILOT SAID THAT HE LIFTED OFF THE GROUND TO AN APPROXIMATE HEIGHT OF 12 INCHES. THAT IS WHEN HE HEARD A "CLUNK" FROM BEHIND HIM. THE PILOT SAID THAT HE THOUGHT THAT SOMETHING MIGHT HAVE GONE THROUGH THE TAIL ROTOR, SO HE TURNED THE HELICOPTER TO THE LEFT 180 DEGREES. SEEING NOTHING, THE PILOT DECIDED TO SET DOWN. AT THAT POINT, THE HELICOPTER PITCHED OVER ON ITS RIGHT SIDE. THE PILOT SAID THAT HE "NEGLECTED TO REMOVE THE TRANSPORT WHEELS" BEFORE FLIGHT. A FEDERAL AVIATION ADMINISTRATION (FAA) INSPECTOR EXAMINED THE HELICOPTER IN THE PILOTS HANGAR AT PORTER COUNTY MUNICIPAL AIRPORT. BOTH MAIN ROTOR BLADES SHOWED CHORDWISE SCRATCHES AT APPROXIMATELY MID-SPAN. THE OUTBOARD TIPS OF BOTH ROTOR BLADES WERE CURLED UPWARD. THE FUSELAGE WAS BENT UPWARD AND WRINKLED. THE COCKPIT WINDSCREEN WAS BROKEN OUT. THE COCKPIT INTERIOR REMAINED INTACT. NO DAMAGE WAS OBSERVED TO THE SEATS, CONTROL PANEL, OR HELICOPTER CONTROLS. THE RIGHT FIN ON THE TAIL BOOM WAS SCRAPED. THE LEFT FIN WAS BROKEN OFF. THE TRAIL ROTOR SHOWED NO DAMAGE. THE RIGHT TRANSPORT WHEEL WAS ATTACHED TO THE RIGHT SKID. THE WHEEL WAS BENT DOWN AND INWARD, AND BROKEN ON THE OUTBOARD SIDE. THE LEFT TRANSPORT WHEEL WAS ATTACHED TO THE LEFT SKID. THE LEFT TRANSPORT WHEEL AXLE AND FITTING WERE BENT DOWNWARD APPROXIMATELY 45 DEGREES. HELICOPTER FLIGHT CONTROL CONTINUITY WAS CONFIRMED. NO ANOMALIES WERE FOUND IN THE ENGINE, ENGINE CONTROLS, OR OTHER HELICOPTER SYSTEMS. (-23) COUNSELING CONDUCTED BY ROTORCRAFT INSPECTOR DAVID H. KEPPLE. PILOT NEGLECTED TO REMOVE GROUND TRANSPORT DOLLY WHEELS.

NTSB investigation

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