20050326034249A

Accident · Substantial damage

FAA accident report · Robsin R22BETA · Los Banos, CA · March 26, 2005

Date
March 26, 2005 · 08:30 local
Place
Los Banos, CA
Airport
Los Banos Municipal Airport
Phase of flight
Pwr On Vertical Ldng/Rtrcrft
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N820SH
NTSB investigation
NTSBLAX05LA278
Reported as
Robsin R22BETA
Reported engine
Lycoming O360*
People aboard
2
Fatal injuries
0
Pilot’s flight hours
2,050 total1,900 in this make and model300 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.

(-23) At approximately 0830 hours PST on 3/26/2005, Robinson R-22 beta helicopter, N820SH, sustained substantial damage when the engine failed during an attempted power recovery from an autorotation. The flight instructor (PIC) and cfi-applicant (student) were enroute from gustine, CA (3O1) to las Banos, CA (lsn) on a 14CFR91 instructional flight in VMC conditions. Approximately 5 NM north of lsn, the PIC initiated a simulated forced landing at 900' AGL and 80 KIAS by reducing engine power to idle with the throttle. The student entered autorotation, applied carburetor heat, and maneuvered toward a suitable forced landing site. During the autorotative flare the student initiated a power recovery to terminate the maneuver to a hover. The engine responded initially to the demand for power, then lost power completely. The helicopter landed hard and bounced once in a skids level attitude with approximately 5 knots forward speed. The left skid toe contacted a tussock causing the aircraft to yaw left 90 degrees. The helicopter bounced a second time and came to rest upright on its skids. The PIC and student were not injured.

As the FAA filed it

(-23) AT APPROXIMATELY 0830 HOURS PST ON 3/26/2005, ROBINSON R-22 BETA HELICOPTER, N820SH, SUSTAINED SUBSTANTIAL DAMAGE WHEN THE ENGINE FAILED DURING AN ATTEMPTED POWER RECOVERY FROM AN AUTOROTATION. THE FLIGHT INSTRUCTOR (PIC) AND CFI-APPLICANT (STUDENT) WERE ENROUTE FROM GUSTINE, CA (3O1) TO LAS BANOS, CA (LSN) ON A 14CFR91 INSTRUCTIONAL FLIGHT IN VMC CONDITIONS. APPROXIMATELY 5 NM NORTH OF LSN, THE PIC INITIATED A SIMULATED FORCED LANDING AT 900' AGL AND 80 KIAS BY REDUCING ENGINE POWER TO IDLE WITH THE THROTTLE. THE STUDENT ENTERED AUTOROTATION, APPLIED CARBURETOR HEAT, AND MANEUVERED TOWARD A SUITABLE FORCED LANDING SITE. DURING THE AUTOROTATIVE FLARE THE STUDENT INITIATED A POWER RECOVERY TO TERMINATE THE MANEUVER TO A HOVER. THE ENGINE RESPONDED INITIALLY TO THE DEMAND FOR POWER, THEN LOST POWER COMPLETELY. THE HELICOPTER LANDED HARD AND BOUNCED ONCE IN A SKIDS LEVEL ATTITUDE WITH APPROXIMATELY 5 KNOTS FORWARD SPEED. THE LEFT SKID TOE CONTACTED A TUSSOCK CAUSING THE AIRCRAFT TO YAW LEFT 90 DEGREES. THE HELICOPTER BOUNCED A SECOND TIME AND CAME TO REST UPRIGHT ON ITS SKIDS. THE PIC AND STUDENT WERE NOT INJURED.

NTSB investigation

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