19990626007679A

Accident · Substantial damage

FAA accident report · Amtr BENSEN B8M · Grenncastle, IN · June 26, 1999

Date
June 26, 1999 · 08:00 local
Place
Grenncastle, IN
Phase of flight
Normal Cruise
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N2152G
NTSB investigation
NTSBCHI99LA200
Reported as
Amtr BENSENB8M
Fatal injuries
0
Pilot’s certificate
Student

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.

Acft was being tested after maintenance on the turbocharger, when according to a witness, the acft was going back and forth over the rwy for approximately 15 minutes, the witness looked up when the power level decreased and saw the acft in slip with its left side low, rotor still turning, and the acft descended with little if any power in slip until it struck the ground, other circumstances are unknown. (.19)on June 26, 1999, at 0830 eastern standard time, a gillmore benson b&b (amateur built gyroplane), N2152G, departed controlled flight and impacted the terrain near greencastle, Indiana. The gyroplane sustained substantial damage, while the pilot recieved serious injuries. The personal 14 CFR part 91 flight was operating in visual meteorological conditions. No flight plan was on file. The local flight departed about 0725. The pilot said that the roll control was lost and while attempring to maneuver the engine suffered a loss of power. An examinatin of the gyroplane subsequent to the accident found that the right cyclic control rod was found fractured. There was discoloration in about 90% of the fracture in the control rod. (-23)according to witness staement: aircraft was going back and forth over the runway for approximately 15 minutes. Witness looked up when power level decreased greatly and saw aircraft in slip with left side low, rotor was still turning. Aircraft descended with little if any power, IN the slip, until the aircraft hit the ground.

As the FAA filed it

ACFT WAS BEING TESTED AFTER MAINTENANCE ON THE TURBOCHARGER, WHEN ACCORDING TO A WITNESS, THE ACFT WAS GOING BACK AND FORTH OVER THE RWY FOR APPROXIMATELY 15 MINUTES, THE WITNESS LOOKED UP WHEN THE POWER LEVEL DECREASED AND SAW THE ACFT IN SLIP WITH ITS LEFT SIDE LOW, ROTOR STILL TURNING, AND THE ACFT DESCENDED WITH LITTLE IF ANY POWER IN SLIP UNTIL IT STRUCK THE GROUND, OTHER CIRCUMSTANCES ARE UNKNOWN. (.19)ON JUNE 26, 1999, AT 0830 EASTERN STANDARD TIME, A GILLMORE BENSON B&B (AMATEUR BUILT GYROPLANE), N2152G, DEPARTED CONTROLLED FLIGHT AND IMPACTED THE TERRAIN NEAR GREENCASTLE, INDIANA. THE GYROPLANE SUSTAINED SUBSTANTIAL DAMAGE, WHILE THE PILOT RECIEVED SERIOUS INJURIES. THE PERSONAL 14 CFR PART 91 FLIGHT WAS OPERATING IN VISUAL METEOROLOGICAL CONDITIONS. NO FLIGHT PLAN WAS ON FILE. THE LOCAL FLIGHT DEPARTED ABOUT 0725. THE PILOT SAID THAT THE ROLL CONTROL WAS LOST AND WHILE ATTEMPRING TO MANEUVER THE ENGINE SUFFERED A LOSS OF POWER. AN EXAMINATIN OF THE GYROPLANE SUBSEQUENT TO THE ACCIDENT FOUND THAT THE RIGHT CYCLIC CONTROL ROD WAS FOUND FRACTURED. THERE WAS DISCOLORATION IN ABOUT 90% OF THE FRACTURE IN THE CONTROL ROD. (-23)ACCORDING TO WITNESS STAEMENT: AIRCRAFT WAS GOING BACK AND FORTH OVER THE RUNWAY FOR APPROXIMATELY 15 MINUTES. WITNESS LOOKED UP WHEN POWER LEVEL DECREASED GREATLY AND SAW AIRCRAFT IN SLIP WITH LEFT SIDE LOW, ROTOR WAS STILL TURNING. AIRCRAFT DESCENDED WITH LITTLE IF ANY POWER, IN THE SLIP, UNTIL THE AIRCRAFT HIT THE GROUND.

NTSB investigation

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