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20030630013829A

Accident · Destroyed
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FAA accident report · Robsin R22 BETA · Chandler, AZ · June 30, 2003

FAA Aviation Safety Information Portal

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Date
June 30, 2003 · 18:00 local
Place
Chandler, AZ
Airport
Chandler Municipal Airport
Phase of flight
Sfl Autorotation
Operating rules
General operating rules (Part 91)
Operator
QUHS
Damage
Destroyed
Aircraft
N7508E
NTSB investigation
NTSBLAX03CA220
Reported as
Robsin R22BETA
Reported engine
Lycoming O360J2A
People aboard
2
Fatal injuries
0
Pilot’s flight hours
874 total874 in this make and model303 in the last 90 days
N7508ERegistration cancelled Apr 7, 2017 · Robinson Helicopter R22 BETAS/N 3433 · Built 2003Airframe 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.

(-23) While practicing autorotations 9 miles se of chd, the CFI announced a "throttle chop" and the student entered autorotation @ approx. 600-700 ft (AGL), then turned the helicopter into the wind. The student applied an excessive amount of aft cyclic causing the airspeed to decrease rapidly. At approx. 350-400 ft (AGL) the student applied forward cyclic to regain airspeed, however this caused the nr to decay. The CFI announced that he had control of the helicopter several times before the student was finally "off" the controls. At this point (30 ft AGL) the CFI had been unable to regain the lost nr. The helicopter contacted the ground on the forward portion of the landing skids at approx. 20-25 KIAS ground speed causing the vehicle to bounce upward and main rotor blades striking the tail boom causing it's separation. The forward portion of the r/h landing skid then dug into the ground causing the helicopter to roll onto it's r/h side coming to rest. There was no post-crash fire and no injury to either pilot/occupant. The helicopter was destroyed.

As the FAA filed it

(-23) WHILE PRACTICING AUTOROTATIONS 9 MILES SE OF CHD, THE CFI ANNOUNCED A "THROTTLE CHOP" AND THE STUDENT ENTERED AUTOROTATION @ APPROX. 600-700 FT (AGL), THEN TURNED THE HELICOPTER INTO THE WIND. THE STUDENT APPLIED AN EXCESSIVE AMOUNT OF AFT CYCLIC CAUSING THE AIRSPEED TO DECREASE RAPIDLY. AT APPROX. 350-400 FT (AGL) THE STUDENT APPLIED FORWARD CYCLIC TO REGAIN AIRSPEED, HOWEVER THIS CAUSED THE NR TO DECAY. THE CFI ANNOUNCED THAT HE HAD CONTROL OF THE HELICOPTER SEVERAL TIMES BEFORE THE STUDENT WAS FINALLY "OFF" THE CONTROLS. AT THIS POINT (30 FT AGL) THE CFI HAD BEEN UNABLE TO REGAIN THE LOST NR. THE HELICOPTER CONTACTED THE GROUND ON THE FORWARD PORTION OF THE LANDING SKIDS AT APPROX. 20-25 KIAS GROUND SPEED CAUSING THE VEHICLE TO BOUNCE UPWARD AND MAIN ROTOR BLADES STRIKING THE TAIL BOOM CAUSING IT'S SEPARATION. THE FORWARD PORTION OF THE R/H LANDING SKID THEN DUG INTO THE GROUND CAUSING THE HELICOPTER TO ROLL ONTO IT'S R/H SIDE COMING TO REST. THERE WAS NO POST-CRASH FIRE AND NO INJURY TO EITHER PILOT/OCCUPANT. THE HELICOPTER WAS DESTROYED.

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 LAX03CA220Accident · No injuriesData collectionFinal reportChandler, AZThe student's failure to maintain adequate main rotor rpm and his failure to relinquish the controls.Jul 1, 2003 · Substantial damage