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20091031021429A

Accident · Substantial damage
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FAA accident report · Robsin R22 BETA · Marsing, ID · October 31, 2009

FAA Aviation Safety Information Portal

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Date
October 31, 2009 · 14:00 local
Place
Marsing, ID
Phase of flight
Maneuver
Operating rules
General operating rules (Part 91)
Operator
SILS
Damage
Substantial damage
Aircraft
N74607
NTSB investigation
NTSBWPR10CA042
Reported as
Robsin R22BETA
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s flight hours
860 total650 in this make and model150 in the last 90 days
N74607Registration cancelled Sep 27, 2011 · Robinson Helicopter R22 BETAS/N 3949 · Built 2005Airframe modelRobinson Helicopter R22 BETAEngine modelLycoming O-360 seriesReciprocating

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.

Aircraft departed caldwell, ID airport (eul) approximately 1330 LCL time with a flight intsructor (c.davis) and student (r. cox)to complete the requirements of sfar 73-Robinson R-22/-44 special training and experience requirements. The plan was to perform a pinnacle approach and landing. The pinnacle was about 3500 Ms. After performing a high and low reconnaissance of the landing site, the aircraft approached the pinnacle with a northwest heading. Approximately 50 to 70 AGL the instructor called for a "go-around" due to high IAS (40 KTS) and descent rat (400 fpm). Upon initiating the go-around the crew experienced a lack of power, decreased rotor RPM and an increased sink rate. The initial impact was hard, the aircraft pitched and rolled forward. The initial main rotor strike was at the 11:00 position. The left skid drove into the ground. Simultaneoulsly the main rotor torque caused the aircraft to "flip" tail over nose. The aircraft came to rest on the left side, facing the opposite direction.

As the FAA filed it

AIRCRAFT DEPARTED CALDWELL, ID AIRPORT (EUL) APPROXIMATELY 1330 LCL TIME WITH A FLIGHT INTSRUCTOR (C.DAVIS) AND STUDENT (R. COX)TO COMPLETE THE REQUIREMENTS OF SFAR 73-ROBINSON R-22/-44 SPECIAL TRAINING AND EXPERIENCE REQUIREMENTS. THE PLAN WAS TO PERFORM A PINNACLE APPROACH AND LANDING. THE PINNACLE WAS ABOUT 3500 MS. AFTER PERFORMING A HIGH AND LOW RECONNAISSANCE OF THE LANDING SITE, THE AIRCRAFT APPROACHED THE PINNACLE WITH A NORTHWEST HEADING. APPROXIMATELY 50 TO 70 AGL THE INSTRUCTOR CALLED FOR A "GO-AROUND" DUE TO HIGH IAS (40 KTS) AND DESCENT RAT (400 FPM). UPON INITIATING THE GO-AROUND THE CREW EXPERIENCED A LACK OF POWER, DECREASED ROTOR RPM AND AN INCREASED SINK RATE. THE INITIAL IMPACT WAS HARD, THE AIRCRAFT PITCHED AND ROLLED FORWARD. THE INITIAL MAIN ROTOR STRIKE WAS AT THE 11:00 POSITION. THE LEFT SKID DROVE INTO THE GROUND. SIMULTANEOULSLY THE MAIN ROTOR TORQUE CAUSED THE AIRCRAFT TO "FLIP" TAIL OVER NOSE. THE AIRCRAFT CAME TO REST ON THE LEFT SIDE, FACING THE OPPOSITE DIRECTION.

NTSB investigation

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

NTSB WPR10CA042Accident · No injuriesData collectionFinal reportMarsing, IDThe pilot's failure to maintain adequate main rotor rpm during the approach and subsequent go-around and the certified flight instructor's inadequate supervision of the flight.Oct 31, 2009 · Substantial damage