FTW03LA172

NTSB accident investigation · Robinson R22 Beta · Houston, TX · June 12, 2003

Accident · Minor injuriesLimited investigationFinal report
Date
June 12, 2003, 09:30 local (14:30 UTC)
Place
Houston, TX
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7198HRobinson R22 Beta
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration, SW09
FAA report
20030612012479A
Case key
57216

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 pilot's failure to maintain rotor RPM and the improper landing flare resulting in a hard landing. A contributing factor was the prevailing high winds.

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 - flare/touchdown
Emergency procedure - simulatedPilot in command(cfi)
Weather condition - high windFactor
Rotor rpm - not maintainedPilot in command(cfi)Cause
Flare - improperPilot in command(cfi)Cause
Misc rotorcraft,tail boom - separation

Analysis

Upon completion of the pipeline patrol flight, while returning to DWH airport, the flight instructor rolled the throttle to flight idle to simulate a loss of engine power. The student pilot lowered the collective and initiated an autorotation to an open field, into the prevailing strong southerly wind. A high rate of descent developed during the autorotation and during the ensuing landing, the helicopter landed hard and bounced, which resulted in the separating of the tail boom from the fuselage. Winds were reported from 180 degrees at 16 knots, gusting to 21 knots. Despite repeated attempts by the investigator-in-charge (IIC), the pilot never returned a completed Pilot Operator Aircraft Accident Report Form (NTSB Form 6120.1/2).

Factual narrative

On June 12, 2003, approximately 0930 central daylight time, a Robinson R22 Beta helicopter, was substantially damaged during a hard landing while conducting a simulated emergency landing near Houston, Texas. The helicopter was registered to and operated by Helicopter Services, Inc., of Houston, Texas. The commercial pilot/flight instructor and the student pilot sustained minor injuries. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 flight. The local flight departed David Wayne Hooks Airport (DWH) on a pipeline patrol, approximately 0800.

The pilot told an FAA inspector that upon completion of the pipeline patrol flight, while returning to DWH, the flight instructor rolled the throttle to flight idle to simulate a loss of engine power. The student pilot lowered the collective and initiated an autorotation to an open field, into the prevailing strong southerly wind. A high rate of descent developed during the autorotation and during the ensuing landing, the helicopter landed hard and bounced, which resulted in the separating of the tail boom from the fuselage.

The FAA inspector, who responded to the accident site, reported that the helicopter appeared to execute a very steep approach angle at a very high rate of descent, which caused the tailboom to separate from the airframe after the helicopter impacted the ground. Ground signatures consistent with the bottom of the engine and cooling fan were found at the initial point of impact. Ground scars indicated that the helicopter bounced and the left landing gear skid collapsed, turning the helicopter to the left. The helicopter came to rest in an easterly heading. The tailboom came to rest about 100 feet east of the resting place of the main wreckage, while the tail rotor assembly and tail rotor gear box were found approximately 340 feet south of the main wreckage.

The 2001 model Robinson R22 Beta helicopter, serial number 3165, was powered by a single normally aspirated Lycoming O-360-A1D engine, producing 180 horsepower.

At 1353 local, the weather at the Sugar Land Airport, located approximately 15 miles south west of the accident site, was reporting winds from 180 degrees at 16 knots, gusting to 21 knots, visibility 10 statute miles, clear skies, temperature 29 degrees Celsius, dew point 26 degrees Celsius, with an altimeter setting of 29.80 inches of Mercury.

Despite repeated attempts by the investigator-in-charge (IIC), the pilot never returned a completed Pilot Operator Aircraft Accident Report Form (NTSB Form 6120.1/2).

Aircraft

Registration
N7198H
Reported as
Robinson R22 Beta
Category
Helicopter
Serial number
3165
Engine
Lycoming O-360-A1D, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Helicopter Services Inc
Airworthiness certificate
Standard, Normal
Departed
DWH · Houston, TX
Destination
DWH

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Injuries
Minor
Instrument ratings
Helicopter
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,500 total · 800 in this make and model
Role
Student pilot
Injuries
Minor

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 75 °F
Altimeter
29.80 inHg
Observed at
DWH

FAA reports on this event · 1

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