FTW95LA360

NTSB accident investigation · Boeing A75N1 · Evadale, TX · August 24, 1995

Accident · Minor injuriesLimited investigationFinal report
Date
August 24, 1995, 12:15 local (17:15 UTC)
Place
Evadale, TX
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N68722Boeing A75N1
Weather
Visual (VMC) · Day
Status
Completed · report January 29, 1996
Report
Approved by Office Director
FAA report
19950824025339A
Case key
19553

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

A failure that resulted in separation of the #5 cylinder and loss of engine oil. The lack of suitable terrain for a forced landing was a related 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.

Loss of engine power(total) - mech failure/malfCruise
Engine assembly,cylinder - failure,totalCause
Engine assembly,cylinder - separationCause
Fluid,oil - loss,totalCause
Forced landingEmergency descent/landing
In flight collision with objectEmergency landing
Terrain condition - none suitableFactor
Object - tree(s)

Analysis

In cruise flight, the pilot noticed oil on the flying wires and headed for the nearest airport. The engine lost power several minutes later, and the pilot attempted to land in the 'only available' location, a field surrounded by trees. The airplane struck the trees during approach to the field. Examination of the engine revealed the #5 cylinder had separated in flight, resulting in the loss of oil.

Factual narrative

On August 24, 1995, at 1215 central daylight time, a Boeing A75N1, N68722, was substantially damaged when it struck trees during a forced landing near Evadale, Texas. The commercial pilot/operator received minor injuries. No flight plan was filed and visual meteorological conditions prevailed for the Title 14 CFR Part 91 personal flight. The airplane departed Jennings, Louisiana, at 1130 en route to Brenham, Texas.

According to the pilot, the flight of two airplanes was cruising at 2,500 feet MSL when he "noted oil on the flying wires" of his airplane. The pilot of the second airplane observed an "oil leak about one foot in width extending from the engine to the cockpit" of the accident airplane. Both airplanes reversed course and headed towards the nearest airport. "Several minutes later" the accident airplane's engine lost power. The pilot reported that the "only available landing spot" was "a small field surrounded by trees." During approach to the field, the airplane struck trees. The wings and center section were "destroyed" and the emmpenage was "bent."

Examination of the engine by a certificated mechanic revealed that the #5 cylinder had separated in flight. The cylinder was not recovered which prevented determination of the reason for its separation. In the opinion of the mechanic, "the cylinder coming off the engine was the ultimate cause of failure (oil and manifold pressure loss.)"

Aircraft

Registration
N68722
Reported as
Boeing A75N1
Category
Airplane
Serial number
75-3603
Airframe hours
2,863
Engine
Lycoming R-680-B4D, 225 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
John S. Connelly
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 1, 1994 · 100 hours before
Departed
3R7 · Jennings, LA
Destination
11R · Brenham, TX

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
51
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
1,300 total · 800 in this make and model · 1,186 as pilot in command · 69 in the last 90 days · 51 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
85° at 5 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
84 °F

FAA reports on this event · 1

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