FTW93LA243

NTSB accident investigation · Boeing A75N1 · Lafayette, LA · August 21, 1993

Accident · Serious injuriesLimited investigationFinal report
Date
August 21, 1993, 18:28 local (23:28 UTC)
Place
Lafayette, LA
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N450ECBoeing A75N1
Weather
Visual (VMC) · Day
Status
Completed · report August 1, 1994
Report
Approved by Office Director
FAA report
19930821029879A
Case key
18820

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 engine failure for undetermined reasons. A factor was the lack of suitable terrain onto which a forced landing could be executed.

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/malfManeuvering
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
In flight collision with objectLanding
Object - tree(s)
Terrain condition - none suitableFactor

Analysis

A complete power loss was experienced during a practice flight as the airplane was flying a low pass down a runway with a wing walker strapped to the upper wing. The pilot stated that he could not maneuver back to the runway and he executed a forced landing into a wooded residential area. He attempted to land in the tops of the trees; however, the airplane feel nose first to the ground. The pilot reported that the engine failure was caused by a failed fuel pump, but he did not submit the pump for examination. The wing walker, stated that the power loss was a result of fuel exhaustion. On scene examination of the wreckage by the FAA revealed some fuel in the tank and fuel spillage around the accident site.

Factual narrative

On August 21, 1993, at 1828 central daylight time, a Boeing A75N1, N450EC, was substantially damaged when it collided with trees during a forced landing near Lafayette, Louisiana. The airplane, flown by an ATP rated pilot, was on a local aerobatic practice flight. There was no flight plan filed and visual meteorological conditions prevailed throughout the area. The pilot and a wing walker who was strapped to the top of the upper wing received serious injuries.

The pilot and wing walker had completed their practice session and were returning to the home airport. According to the pilot and witnesses, he had flown a low pass down runway 22L at about 500 feet AGL and then banked right and flew down the length of runway 29. The pilot stated that the engine quit when the airplane was about 2/3rds of the way down runway 29. One of the pilot witnesses stated that the engine "sputtered" and then "fired up again for about 10-15 seconds" and then quit completely. The pilot stated that after the power loss, he could not get back to the runway. He further stated that he was forced to execute a forced landing into a wooded residential area. He stated that he attempted to land in the top of the trees; however, the airplane subsequently fell nose first to the ground. The wing walker remained strapped to the wing throughout the accident sequence.

On his Pilot/Operator Aircraft Accident Report, the pilot reported that the engine driven fuel pump had failed and that the failure resulted in the accident. He did not provide the pump to either the NTSB or FAA as requested for additional examination. The wing walker, who was asked to submit a written statement, but did not, stated that the cause of the engine failure was fuel exhaustion. It was noted that the airplane had been topped off prior to the first flight of the day and had flown approximately 1:45 prior to the accident. The FAA coordinator reported that about 2 to 3 gallons of fuel were present in the tank after the accident and he noted that fuel continued to drain from the lines. He also reported there had been a fuel spill on the ground. The pilot reported that 8 to 10 gallons of fuel was drained from the airplane during the recovery.

Aircraft

Registration
N450EC
Reported as
Boeing A75N1
Category
Airplane
Serial number
75-4639
Airframe hours
7,100
Engine
P&W R985-14B, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Registered owner
Cherry, Earl L.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · February 4, 1993 · 5 hours before
Destination
LFT

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
48
Certificate
Airline transport
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Helicopter, Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
12,000 total · 3,800 in this make and model · 100 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 8 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 73 °F
Altimeter
29.00 inHg
Observed at
LFT, 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.