SEA93LA210

NTSB accident investigation · White BD-5 · Helena, MT · September 25, 1993

Accident · No injuriesLimited investigationFinal report
Date
September 24, 1993, 19:15 local (Sep 25, 1993, 01:15 UTC)
Place
Helena, MT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N273GWWhite BD-5
Weather
Visual (VMC) · Dusk
Status
Completed · report August 1, 1994
Report
Approved by Office Director
FAA report
19930924036269A
Case key
41776

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 airspeed. The pilot's lack of experience in this make and model aircraft was a factor.

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
Airspeed - not maintainedPilot in commandCause
Lack of total experience in type of aircraftPilot in commandFactor
Nose gear collapsedLanding - flare/touchdown
Landing gear,nose gear assembly - overloadCause

Analysis

During a touch-and-go landing, the pilot, who had only five hours experience in this make and model aircraft, allowed the airspeed to get low. Due to the low airspeed, the aircraft dropped hard onto the runway, and the nose gear collapsed. The aircraft then skidded off the runway and impacted a runway light, which resulted in damage to the fuel system. Sparks from the light system ignited fuel that was leaking from the damaged fuel system, and the aircraft caught fire and partially burned.

Factual narrative

On September 24, 1993, at approximately 1915 mountain daylight time (MDT), an experimental White BD-5, N273GW, experienced a nose gear collapse while landing at Helena Regional Airport, Helena, Montana. The FAA certificated commercial pilot, who was the sole occupant of the aircraft, was not injured, but the aircraft sustained substantial damage. The personal pleasure flight, which was being conducted in the local traffic pattern, had departed the same airport about one hour and 15 minutes earlier. At the time of the accident, the aircraft was operating in visual meteorological conditions, and there was no report of an ELT transmission.

According to the pilot, who only had a total of five hours flight time in this make and model aircraft, he allowed his airspeed to get low while attempting a touch-and-go landing. The low airspeed resulted in the aircraft dropping hard onto the runway, followed by a collapse of the nose gear. This resulted in the aircraft sliding down the runway on its nose section. As it slid, the aircraft swerved off the left side of the runway and into a runway light. The impact with the light severed a fuel line or fractured the right fuel tank, and sparks from the lighting system ignited the spilling fuel. The aircraft then caught fire resulting in substantial damage to its forward portion.

Aircraft

Registration
N273GW
Reported as
White BD-5
Category
Airplane, amateur-built
Serial number
GW-1
Airframe hours
15
Engine
Rotax 503, 52 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Wermling, George A.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · April 8, 1993 · 15 hours before
Airport
HLN · Helena Regional, runway 27, 9,000 × 150 ft, asphalt

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
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
550 total · 5 in this make and model

Weather

Conditions
Visual (VMC) · Dusk
Wind
270° at 7 knots
Visibility
40 statute miles
Lowest ceiling
20,000 ft broken
Temperature
64 °F, dew point 34 °F
Altimeter
30.00 inHg
Observed at
HLN, 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.