FTW02LA197

NTSB accident investigation · Robinson R44 · Houston, TX · June 28, 2002

Accident · No injuriesLimited investigationFinal report
Date
June 28, 2002, 10:15 local (15:15 UTC)
Place
Houston, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N144WTRobinson R44
Weather
Visual (VMC) · Day
Status
Completed · report December 30, 2003
Report
Approved by Office Director
Parties
FAA FSDO
FAA report
20020628013599A
Case key
55106

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 loss of control after encountering dynamic rollover during takeoff. A contributing factor was the pilot's inadequate preflight inspection.

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.

Loss of control - in flightClimb
Dynamic rollover - encounteredPilot in commandCause
Aircraft preflight - inadequatePilot in commandFactor

Analysis

The pilot "lifted" the helicopter vertically to a 4-5 foot hover and proceeded to make a 10 degree left pedal turn. The pilot applied forward pressure on the cyclic to initiate forward flight and in a "matter of 10'-15', the rear portion of the left skid went down abruptly." The pilot immediately added forward right cyclic to compensate for this action. The helicopter started to level at an altitude of approximately 2-3 feet when it settled "hard" on the front portion of the left skid. The helicopter came to rest upright on its landing skids. A broken tie down chain was found that had been attached to the aft portion of the helicopter skid. The pilot reported that he did not attach the tie down chain to the helicopter.

Factual narrative

On June 28, 2002, at 1015 central daylight time, a Robinson R44 helicopter, N144WT, was substantially damaged during takeoff from the West Houston Airport near Houston, Texas. The helicopter was registered to Wilkinson Rental Tools, Inc., of Lafayette, Louisiana, and operated by the pilot. The private pilot, sole occupant of the helicopter, was not injured. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The flight was originating at the time of the accident, and was destined for Mandeville, Louisiana.

The pilot reported to an FAA inspector that while attempting to takeoff, he "lifted" the helicopter vertically to a 4-5 foot hover and proceeded to make a 10 degree left pedal turn to a northerly direction. The pilot applied forward pressure on the cyclic to initiate forward flight and in a "matter of 10 to 15 feet, the rear portion of the left skid went down abruptly." The pilot immediately added forward right cyclic to compensate for this action. The helicopter started to level at an altitude of approximately 2-3 feet when it settled "hard" on the front portion of the left skid. The helicopter came to rest upright on its landing skids.

According to a witness, he observed the helicopter lift off, make a bank to the left then sharper to its right, and then very sharply to its left. Then it made a 180-degree turn descending sharply and steeply into the ground. A second witness, observed a chain attached to the left skid when the helicopter lifted off. About 3-4 feet off the ground, the helicopter movement was subdued by the chain and began to "sway" violently one direction and then another. The tail boom and left strut hit the ground, but the pilot was able to land the helicopter and shut it down.

According to the FAA inspector, who responded to the accident site, a broken tie down chain was found that had been attached to the aft portion of the helicopter skid. According to the pilot, he had not placed the tie down there. An examination of the helicopter revealed that the lower portion of the vertical stabilizer was wrinkled with a tear in the leading edge. The left side of the fuselage had damage in the vicinity of the forward skid cross tube. The main rotor mast fairing was buckled directly above the cabin.

The 7,800-hour pilot reported that he had accumulated a total of 721 hours in helicopters, all of them in the same make and model as the accident aircraft.

Aircraft

Registration
N144WT
Reported as
Robinson R44
Category
Helicopter
Serial number
0601
Airframe hours
1,335.2
Engine
Lycoming O-540-F1B5, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Merwin H. Wilkinson
Registered owner
Wilkinson Rental Tools, Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · March 5, 2002 · 86.8 hours before
Departed
IWS · Houston, TX
Destination
Mandeville, LA
Airport
IWS · West Houston

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
58
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
May 23, 2001
Seat
Right
Flight hours
7,800 total · 721 in this make and model · 7,349 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 73 °F
Altimeter
29.96 inHg
Observed at
SGR

Docket · 4

The files NTSB released with the investigation on November 13, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 730 KB in all.

FAA reports on this event · 1

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