NYC93LA175

NTSB accident investigation · Enstrom F28A · Meriden, CT · August 27, 1993

Accident · No injuriesLimited investigationFinal report
Date
August 27, 1993, 16:20 local (20:20 UTC)
Place
Meriden, CT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N269QEnstrom F28A
Weather
Visual (VMC) · Day
Status
Completed · report June 22, 1994
Report
Approved by Office Director
FAA report
19930827031609A
Case key
38648

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 loss of engine power for undetermined reasons.

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 engine powerManeuvering
Reason for occurrence undeterminedFactor
Forced landingManeuvering
Hard landingLanding - flare/touchdown

Analysis

During a maintenance test flight the pilot elected to perform a practice autorotation. During the maneuver the engine lost complete power. The helicopter impacted the ground hard, became airborne, the main rotor blades struck the tail boom and separated the boom from the fuselage. A test run performed on the engine revealed no discrepancies.

Factual narrative

On Friday, August 27, 1993, at about 1620 eastern daylight time, an Enstrom F28A, helicopter, N269Q, piloted by Mr. Mark Lavoie, collided with the terrain during a practice autorotation at the Meriden Airport, Meriden, Connecticut. The helicopter was substantially damaged, and the pilot was not injured. Visual meteorological conditions prevailed at the time, and no flight plan had been filed. The flight was being conducted under 14 CFR 91.

Maintenance had recently been performed on the helicopter, and the pilot took off for a test flight. The pilot elected to perform a practice autorotation. During this maneuver the engine lost complete power. The helicopter impacted the ground; became airborne; turned 90 degrees; and the main rotor blades struck the tail boom.

According to the pilot's statement on the NTSB Form 6120.1/2:

...entered autorotation at approximately 1,000 feet MSL...all indications and aircraft operation normal...rotor RPM O.K...engine RPM "0". Engine failure verified...ground contact on aft portion of skids...loud "whack" and violent torque twist...

FAA Inspector, Edwin Odell, examined the wreckage after the accident and said that fuel and oil were present. Mr. Odell said, "...no outward sign of mechanical malfunction was noted." All three fuel sumps were drained and according to Mr. Odell, "...a small amount of water was noted at the right fuel tank drain." No water was found at the left fuel tank or sump. The main rotor transmission clutch was disengaged, the engine was test run and no discrepancies were observed.

Aircraft

Registration
N269Q
Reported as
Enstrom F28A
Category
Helicopter
Serial number
294
Airframe hours
2,691
Engine
Lycoming HIO-360-C1A, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Registered owner
Mark Lavoie
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 15, 1993 · 50 hours before
Departed
MMK
Destination
MMK
Airport
MMK · Meriden-Markham, runway 36, 3,100 × 50 ft, macadam

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
34
Certificates
Private, Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
627 total · 372 in this make and model · 561 as pilot in command · 117 in the last 90 days · 47 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 5 knots
Visibility
15 statute miles
Temperature
91 °F

FAA reports on this event · 1

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

Other investigations on N269Q · 1

Matched to the same aircraft by N-number and date.