LAX98LA160

NTSB accident investigation · Robinson R22B · San Jose, CA · May 16, 1998

Accident · No injuriesLimited investigationFinal report
Date
May 16, 1998, 10:48 local (17:48 UTC)
Place
San Jose, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2332GRobinson R22B
Weather
Visual (VMC) · Day
Status
Completed · report February 11, 2000
Report
Approved by Office Director
FAA report
19980516009599A
Case key
30086

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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Probable cause

The student pilot's failure to maintain adequate rotor rpm, and the flight instructor's inadequate supervision of the flight.

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.

Hard landingLanding - aborted
Aborted landing - attemptedDual student
Rotor rpm - lowDual studentCause
Supervision - inadequatePilot in command(cfi)Cause
Roll overLanding

Analysis

The flight instructor and the commercial rated pilot were practicing slope landings. The student stated that as she set the helicopter down it didn't feel right, and she attempted to abort the landing by pulling in full collective. The helicopter became airborne and the main rotor rpm decreased to the point where the low rotor rpm horn and light were activated. The flight instructor reported that he took the controls and recovered the rotor rpm to 92 percent. He attempted to cushion the landing but the helicopter landed hard on the forward portion of the left skid. The left skid tip impacted the berm and the helicopter rolled onto its left side. There was no report of prior mechanical malfunctions.

Factual narrative

On May 16, 1998, at 1048 hours Pacific daylight time, a Robinson R22B, N2332G, impacted the terrain and rolled over at the Reid-Hillview Airport in San Jose, California. The aircraft sustained substantial damage and the certified flight instructor and dual student were not injured. Visual meteorological conditions prevailed and no flight plan was filed. The local instructional flight originated at 1010.

The certified flight instructor reported that he and the commercial rated pilot were working on traffic patterns and had made several practice landings to a 10-degree slope. At the time of the accident, the student was on the controls. She reported that as she set the helicopter down, "it didn't feel right," and she attempted to abort the landing by pulling in full collective and applying aft cyclic. The helicopter became airborne and the main rotor rpm decreased to the point where the low rotor rpm horn and light were activated. The flight instructor reported that he lowered the collective, rolled on the throttle, and neutralized the pedals. The instructor reported that the rotor rpm was recovered to approximately 92 percent. He then applied aft cyclic and lifted the collective to cushion the landing. The helicopter landed hard on the forward portion of the left skid. The skid tip impacted the berm and the helicopter rolled onto its left side.

The pilot reported no prior mechanical malfunctions with the aircraft.

Aircraft

Registration
N2332G
Reported as
Robinson R22B
Category
Helicopter
Serial number
0521
Engine
Lycoming O-320-B2C, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
California In Nice, Inc
Airworthiness certificate
Standard, Normal
Departed
RHV
Airport
RHV · Reid-Hillview

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
50
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
5,000 total · 285 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 5 knots
Visibility
20 statute miles
Lowest ceiling
3,000 ft broken
Temperature
55 °F, dew point 46 °F
Altimeter
30.00 inHg
Observed at
KRH

FAA reports on this event · 1

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