ATL93LA128

NTSB accident investigation · Brown Glassair SH-2 · Timmonsville, SC · July 14, 1993

Accident · Minor injuriesLimited investigationFinal report
Date
July 14, 1993, 15:35 local (19:35 UTC)
Place
Timmonsville, SC
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N412NVBrown Glassair SH-2
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 1994
Report
Approved by Office Director
FAA report
19930714023489A
Case key
3239

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 inadequate fuel planning which resulted in the exhaustion of the fuel supply and the loss of engine power. A factor was the pilot's failure to comply with a manufacturer's service bulletin.

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) - nonmechanicalApproach - vfr pattern - final approach
Fluid,fuel - exhaustionCause
Preflight planning/preparation - inadequatePilot in commandCause
Maintenance,service bulletin/letter - disregardedPilot in commandFactor
Forced landingDescent - emergency
In flight collision with terrain/waterLanding - flare/touchdown

Analysis

The pilot reported that the engine started running roughly while on approach to runway 32. Because he was too high for a safe touchdown and rollout, the pilot attemptied a forced landing to a field adjacent to the airport. During the forced landing, the airplane was damaged. The examination of the airplane and accident site disclosed that there was no fuel in the fuel tanks nor was there fuel spilled in the immediate vicinity of the main wreckage. The airplane was last refueled three weeks prior to this flight, and had flown about two hours prior to this flight. The pilot estimated a total fuel endurance of four and one half hours; the fuel guage indicated about 22 gallons of fuel on board at his last departure. The pilot also reported that, N412NV had a history of venting large quantities of fuel while parked on the ramp. According to the pilot, stoddard-hamilton (glassaire), issued a service bulletin to correct the fuel venting problem; the service bulletin had not been accomplished on N421NV.

Factual narrative

On July 14, 1993, at 1535 eastern daylight time, a Brown Glassair SH-2, N412NV, collided with the ground while attempting a forced landing short of the Huggins Memorial Airport, Timmonsville, South Carolina. The personal flight operated under 14 CFR Part 91 with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The airplane was destroyed, and the pilot and passenger received minor injuries. The flight departed Monroe, North Carolina, at 1435 hours.

The pilot reported that the engine started running roughly, and subsequently quit while on final approach to runway 32. Since the airplane was too high above the runway for a safe touchdown and roll out, the pilot elected to attempt a forced landing to a planted field adjacent to the runway; the airplane sustained substantial structural damage during the emergency landing.

The subsequent wreckage and accident site examinations failed to disclose the presence of fuel in the tanks; no fuel spillage was noted on the ground at the accident site. During a telephone conversation with the pilot, he stated that N412NV had a history of venting fuel while parked. The pilot also stated that Stoddard-Hamilton (Glassaire) issued a servuce bulletin to correct the fuel venting problem; the service bulletin had not been applied to N412NV. According to the pilot, the airplane was topped with fuel about three weeks before the accident.

Aircraft

Registration
N412NV
Reported as
Brown Glassair SH-2 (GLASSAIR)
Category
Airplane, amateur-built
Serial number
332
Airframe hours
272
Engine
Lycoming O-320-E2D, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Dew, Duncan
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · February 27, 1993 · 16 hours before
Departed
EQY · Monroe, NC
Destination
58J
Airport
58J · Huggins Memorial Airport, runway 32, 3,090 × 150 ft, grass/turf

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
59
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
497 total · 71 in this make and model · 315 as pilot in command · 25 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 11 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
99 °F, dew point 66 °F
Altimeter
30.00 inHg
Observed at
FLO, 10 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.