MIA90LA181

NTSB accident investigation · Piper J3C-65 · Opa-Locka, FL · September 1, 1990

Accident · Minor injuriesLimited investigationFinal report
Date
September 1, 1990, 16:37 local (20:37 UTC)
Place
Opa-Locka, FL
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N70659Piper J3C-65
Weather
Visual (VMC) · Day
Status
Completed · report October 2, 1992
Report
Approved by Office Director
FAA report
19900901037879A
Case key
32699

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 lack of oil supply to the number 3 cylinder connecting rod for undetermined reasons. This allowed the connecting rod end cap to separate through the case resulting in oil exhaustion.

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 - normal
Lubricating system,oil port/passage,internal - undetermined
Engine assembly,connecting rod cap - separationCause
Forced landingDescent - emergency
OverrunLanding - roll
On ground/water collision with objectLanding - roll
Object - fence
Nose overLanding - roll

Analysis

During normal cruise flt, the plt reported that the RPM was decreasing & the oil temperature was increasing. The eng then seized. With poor fwd visibility due to oil covering the windscreen, he overshot the field he was attempting to land in. The acft collided with a fence then nosed over. Exam of the eng revealed that the number 3 cylinder connecting rod end cap separated, existed the case & came to rest in the oil sump. Lycoming eng personnel stated that the separation of the rod cap was due to a lack of lubrication which caused the rod bolts to stretch, losing their torque, & one of the two nuts vibrated off. The other rod bolt failed due to overload. The eng received a top overhaul 136 hrs earlier & a major overhaul was performed 2,122 hrs earlier. No determination could be made as to the reason for the lack of lubrication.

Aircraft

Registration
N70659
Reported as
Piper J3C-65
Category
Airplane
Serial number
17679
Airframe hours
20,378
Engine
Lycoming O-235C, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Registered owner
Aerial Sign Company, Inc.
Last inspection
100 hour · August 20, 1990 · 32 hours before
Departed
HWO · Hollywood, FL
Airport
X46 · Opa Locka West

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
44
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
727 total · 285 in this make and model · 619 as pilot in command · 243 in the last 90 days · 74 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 10 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
-0 °F, dew point -0 °F
Observed at
OPF, 4 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.