NYC87LA178

NTSB accident investigation · Robinson R-22 · Sterling, MA · June 13, 1987

Accident · No injuriesLimited investigationFinal report
Date
June 13, 1987, 16:12 local (20:12 UTC)
Place
Sterling, MA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N351Robinson R-22
Weather
Visual (VMC) · Day
Status
Completed · report May 16, 1989
Report
Approved by Office Director
FAA report
19870613082049A
Case key
30675

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Abrupt maneuverHover
Cyclic - improper use ofDual studentCause
Remedial action - delayedPilot in command(cfi)Cause
Supervision - inadequatePilot in command(cfi)Cause
Hard landingLanding - flare/touchdown

Analysis

While practicing hovering in the designated hover area at the arpt, the stu plt accidently pulled aft cyclic while the helicopter was drifting backwards. This caused the tail structure and rotor blades to contact the ground. The main rotor blades then contacted the tail boom and severed it, throwing it abt 50 ft in front of the acft. The instructor added forward cyclic, rolled off the throttle, and landed the helicopter straight ahead.

Aircraft

Registration
N351
Reported as
Robinson R-22
Category
Helicopter
Serial number
0319
Airframe hours
2,978
Engine
Lycoming O-320-B2C, 124 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Fuller Aviation Corp.
Registered owner
Fuller Aviation Corp.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 3, 1987
Airport
Sterling, runway 34L, 2,800 × 100 ft, grass/turf

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.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
28
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
669 total · 285 in this make and model · 559 as pilot in command · 212 in the last 90 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 3 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 68 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.