20140619012749A

Accident · Substantial damage

FAA accident report · Robinson Helicopter R22 · Moscow Mills, MO · June 19, 2014

Date: June 19, 2014 · 10:30 local
Place: Moscow Mills, MO
Phase of flight: Landing: Approach
Operating rules: General operating rules (Part 91)
Damage: Substantial damage
Aircraft: N784SH
NTSB investigation: NTSBCEN14LA313
Reported as: Robinson Helicopter R22
Reported engine: Lycoming O-360-J2A
People aboard: 1
Fatal injuries: 0
Other injuries: 2
Pilot’s certificates: Commercial pilot, flight instructor
Pilot’s flight hours: 1,300 total550 in this make and model30 in the last 90 days

N784SHRegistration cancelled Mar 6, 2018 · Robinson Helicopter R22S/N 3622 · Built 2004 Airframe modelRobinson Helicopter R22 Engine 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.

Flight instructor was giving student pilot instruction in the 180-autorotation manuever. At 100 feet AGL the flight instructor reported a sinking feeling and an increase in the rate of descent. Flight instructor reported speed of 65 KTS and RPM above the green arc. Flight instructor took control from student pilot and attempted to arrest descent. The aircrat experienced a hard landing and the main rotor severed the tail boom. The helicopter rolled on its right side and slid approximately 200 feet before stopping.

As the FAA filed it

FLIGHT INSTRUCTOR WAS GIVING STUDENT PILOT INSTRUCTION IN THE 180-AUTOROTATION MANUEVER. AT 100 FEET AGL THE FLIGHT INSTRUCTOR REPORTED A SINKING FEELING AND AN INCREASE IN THE RATE OF DESCENT. FLIGHT INSTRUCTOR REPORTED SPEED OF 65 KTS AND RPM ABOVE THE GREEN ARC. FLIGHT INSTRUCTOR TOOK CONTROL FROM STUDENT PILOT AND ATTEMPTED TO ARREST DESCENT. THE AIRCRAT EXPERIENCED A HARD LANDING AND THE MAIN ROTOR SEVERED THE TAIL BOOM. THE HELICOPTER ROLLED ON ITS RIGHT SIDE AND SLID APPROXIMATELY 200 FEET BEFORE STOPPING.

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 CEN14LA313Accident · Minor injuriesLimited investigationFinal reportMoscow Mills, MOThe flight instructor’s delayed remedial action to correct the student pilot’s use of an excessive descent rate during a practice autorotation, which resulted in a hard landing.Jun 19, 2014 · Substantial damage