ATL02LA042

NTSB accident investigation · Louis Edmondson 162F · St. Petersburg, FL · January 19, 2002

Accident · Minor injuriesLimited investigationFinal report
Date
January 19, 2002, 15:05 local (20:05 UTC)
Place
St. Petersburg, FL
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N162LELouis Edmondson 162F
Weather
Visual (VMC) · Day
Status
Completed · report November 25, 2003
Report
Approved by Office Director
Parties
FAA - Tampa FSDO 35
FAA report
20020119000339A
Case key
54068

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 decision to continue flight with demonstrated inadequate takeoff performance capability, which resulted in an in-flight loss of control and subsequent hard landing.

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 flightTakeoff
Aircraft performance,takeoff capability - inadequate
In-flight planning/decision - improperPilot in commandCause
Lift-off - continuedPilot in command
Hard landingTakeoff - aborted

Analysis

This was the second attempted liftoff after a previous unsuccessful attempt and subsequent shutdown and check of the helicopter's drive belts. The pilot noticed the helicopter again required "a lot of power." At 10 to 15 feet above the ground, the main rotor rpm dropped. The pilot increased engine power, but the rotor rpm continued to decay. The pilot aborted the takeoff, and the helicopter touched down hard on the right skid. Examination of the helicopter revealed damage to the right front skid, damage to the main rotor system, and separation of the tail boom assembly. The density altitude was estimated to have been 1140 feet at the approximate departure time. The helicopter gross weight is 1500 pounds and the useful load was 425 pounds. Examination of the helicopter revealed no evidence of mechanical malfunction.

Factual narrative

On January 19, 2002, at 1505 eastern standard time, a Louis Edmondson Rotorway 162F helicopter, N162LE, registered to and owned by Louair Associates, Inc., and operated by the commercial pilot, landed hard during an aborted liftoff from Albert Whitted Airport in St. Petersburg, Florida. The personal flight was operated under the provisions of Title 14 CFR Part 91 with no flight plan filed. Visual meteorological conditions prevailed at the time of the accident. The pilot and passenger received minor injuries, and the helicopter sustained substantial damage. The flight was originating from St. Petersburg, Florida, at the time of the accident.

According to the pilot, the accident flight was the second flight attempted that afternoon as they attempted a takeoff from runway 18. The pilot stated there was a gusty crosswind, and the nearest weather facility reported winds at 200 degrees magnetic at 16 knots gusting to 23 knots.

The density altitude was estimated to have been 1140 feet at the approximate departure time. The helicopter gross weight is 1500 pounds and the useful load was 425 pounds. The pilot reported that the flight was operating near the upper performance limits

During liftoff of the first flight, the pilot noticed the helicopter required "a lot of power" to hover. The pilot suspected the drive belts and tail rotor belts were slipping. The pilot returned the helicopter to the hangar, shut it down, and checked the tension of the drive and tail belts. The pilot reported, "everything checked out OK."

The pilot decided to start the helicopter again and lifted off and maneuvered to attempt another takeoff. The pilot again noticed the helicopter required "a lot of power." As the pilot lowered the helicopter's nose to continue the takeoff, approximately 10 to 15 feet above the ground, the main rotor rpm dropped. The pilot increased engine power to full, but the rotor rpm continued to decay. The pilot stated the main drive belts slipped.

The pilot aborted the takeoff, and the helicopter touched down "harder than normal with about 7 or 8 mph forward speed" on the right front skid. The skid dug into the ground and collapsed, the main rotor blade severed the tail boom, and the helicopter rolled over onto its right side.

Examination of the helicopter revealed the right skid was collapsed, the main rotor system sustained damage, and the tail boom assembly was separated. Examination of the drive and tail belts revealed no evidence of burning or fraying.

Aircraft

Registration
N162LE
Reported as
Louis Edmondson 162F
Category
Helicopter, amateur-built
Serial number
RI6137
Airframe hours
41
Engine
Rotorway RI162F-6095, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
William Patrick Trefny
Registered owner
LouAir Associates, Inc.
Airworthiness certificate
Special, Experimental (Special)
Departed
SPG · St. Petersburg, FL
Destination
SPG · St. Petersburg, FL
Airport
SPG · Alber Whitted

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
54
Injuries
Minor
Certificates
Commercial, Military
Instrument ratings
Helicopter
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
May 14, 2001
Seat
Left
Flight hours
1,150 total · 250 in this make and model · 450 as pilot in command · 41 in the last 90 days · 28 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 16 knots, gusting 23
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 64 °F
Altimeter
29.97 inHg
Observed at
PIE, 9 nm away

Docket · 4

The files NTSB released with the investigation on October 9, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 545 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.