CEN13LA111

NTSB accident investigation · Piper L-18C · Graham, TX · December 19, 2012

Accident · No injuriesLimited investigationFinal report
Date
December 19, 2012, 17:00 local (23:00 UTC)
Place
Graham, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N3134GPiper L-18C
Defining event
Enroute: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report January 13, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA
FAA report
20121219027129A
Case key
85887

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The failure of an engine connecting rod and the subsequent loss of oil pressure, which resulted in a total loss of engine power.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Engine (reciprocating): recip eng cyl sectionAircraft › Aircraft power plant · FailurePiper L-18C: 1 caseAll aircraft: 373 casesProbable cause
Engine (reciprocating): recip eng oil sysAircraft › Aircraft power plant · FailurePiper L-18C: 1 caseAll aircraft: 130 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot was returning to the airport when the engine experienced a total loss of power. As the pilot maneuvered to perform a forced landing, the engine seized and the propeller stopped. The airplane landed hard, bounced, and nosed over, coming to rest inverted. The airplane sustained substantial damage to the wings and rudder. An examination of the engine revealed that a connecting rod failed and broke through the crankcase, which resulted in a loss of oil and the subsequent loss of engine power. The reason for the failure of the connecting rod could not be determined.

Factual narrative

On December 19, 2012, about 1700 central standard time, a Piper L-18C airplane, N3134G, was substantially damaged during a forced landing near Graham, Texas. The private pilot and passenger were not injured. The airplane was registered to and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight, which operated without a flight plan. The local flight originated from the Graham Municipal Airport (KRPH), Graham, Texas, about 1600. According to a statement provided by the pilot, when returning to the airport, he noted that the engine's oil pressure went to zero, the rpms began to reduce, and the engine power decreased. As the pilot maneuvered to perform a forced landing, the engine seized and the propeller stopped. The airplane landed hard, bounced, and nosed over, coming to rest in the inverted position. The airplane sustained substantial damage to the wings and rudder. An examination of the engine revealed a broken connecting rod and damage to the engine case. The reason for the failure of the connecting rod could not be determined.

Aircraft

Registration
N3134G
Reported as
Piper L-18C
Category
Airplane
Serial number
52-2419
Airframe hours
2,987
Engine
Cont Motor C90-12F, 95 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · December 1, 2012 · 104 hours before
Departed
KRPH · Graham, TX
Destination
KRPH · Graham, TX
Airport
KRPH · Graham Municipal

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
47
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
January 29, 2011
Seat
Front
Flight hours
2,500 total · 1,000 in this make and model · 60 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 41 °F
Altimeter
29.56 inHg
Observed at
KRPH, 2 nm away

Docket · 2

The files NTSB released with the investigation on November 19, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.4 MB in all.

FAA reports on this event · 1

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