NYC91DNC04

NTSB accident investigation · Laurent A. Cloutier BD-5B · Gilford, NH · August 3, 1991

Accident · Minor injuriesFinal report
Date
August 3, 1991, 07:55 local (11:55 UTC)
Place
Gilford, NH
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N245BDLaurent A. Cloutier BD-5B
Weather
Visual (VMC) · Day
Status
Completed · report April 27, 1993
Report
Approved by Office Director
FAA report
19910803031279A
Case key
36765

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

Engine failure due to a faulty oil pressure relief valve resulting in an emergency landing on unsuitable terrain.

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 power(total) - mech failure/malfTakeoff - initial climb
Lubricating system,oil regulator - improperCause
Single engine aircraft
Forced landingDescent - emergency
On ground/water encounter with terrain/waterLanding - flare/touchdown
Terrain condition - none suitableFactor
Proper touchdown point - not possiblePilot in commandCause
Stall/mush - intentionalPilot in command
Hard landingLanding - flare/touchdown
Landing gear - overloadFactor

Analysis

The pilot lost power after takeoff and made a forced landing on a road. Just prior to touchdown, a car pulled into the planned landing area and the pilot intentionally pulled up to avoid the car. The airplane stalled and hit the road hard, collapsing the landing gear. Post crash examination of the engine disclosed an oil pressure relief valve used to lubricate one of the cylinders was releasing at too high a pressure to adequately lubricate the cylinder which resulted in a stopped engine.

Aircraft

Registration
N245BD
Reported as
Laurent A. Cloutier BD-5B
Category
Airplane, amateur-built
Serial number
3514
Airframe hours
40
Engine
Polaris EC65PL01, 82 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Laurent A. Cloutier
Registered owner
Laurent A. Cloutier
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · September 7, 1990 · 15 hours before
Departed
LCI
Airport
LCT · Laconia

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
67
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
4,300 total · 3,800 as pilot in command · 1 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 3 knots
Lowest ceiling
12,000 ft overcast
Temperature
68 °F, dew point 57 °F
Altimeter
29.00 inHg
Observed at
LCI, 1 nm away

FAA reports on this event · 1

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