- Date
- July 11, 1971
- Place
- Amityville, NY · AMITYVILLE, NY
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N9021RBell-Cci 47G2
- Status
- Completed · report March 2, 1972
- Report
- Brief approved by the director
- Case key
- 162592
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-2455 71/7/11 AMITYVILLE,NY BELL-CCI 47G2 CR- 0 0 2 INSTRUCTIONAL COMMERCIAL, FL.INSTR., TIME - 1445 N9021R PX- 0 0 0 DUAL AGE 24, 2325 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 170 IN TYPE, NOT INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION AMITYVILLE,NY LOCAL TYPE OF ACCIDENT PHASE OF OPERATION HARD LANDING LANDING: POWER-OFF AUTOROTATIVE LANDING ROLL OVER LANDING: POWER-OFF AUTOROTATIVE LANDING PROBABLE CAUSE(S) DUAL STUDENT - MISJUDGED SPEED AND ALTITUDE PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS TERRAIN - WET,SOFT GROUND REMARKS- DRNG PRACTICE AUTO ACFT HIT GND TAIL LOW,SKIDS DUG INTO WET SOFT SAND,ROLLED OVER.
Aircraft
- Registration
- N9021R
- Reported as
- Bell-Cci 47G2
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
N9021RRegistered now · Bell-Continental Copters 47G2Airframe modelBell-Continental Copters 47G2Engine modelLycoming VO-435-A1F
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Other investigations on N9021R · 3
Matched to the same aircraft by N-number and date.
NTSB CEN12LA120Accident · Serious injuriesLimited investigationFinal reportLohn, TXThe improper installation of the tail rotor gearbox by maintenance personnel, which led to accelerated wear of the ring and pinion gears, resulting in the loss of tail rotor effectiveness and subsequent forced landing.NTSB LAX99LA047Accident · No injuriesLimited investigationFinal reportHelendale, CAThe pilot's failure to follow proper procedures to recover from main rotor blade aerodynamic retreating blade stall.NTSB LAX97LA285Accident · No injuriesLimited investigationFinal reportMojave, CAThe student's improper use of the throttle and collective controls and the flight instructor's inadequate supervision of the flight.