CHI83LA252

NTSB accident investigation · Piper PA-12 · Blackduck, MN · June 12, 1983

Accident · No injuriesLimited investigationFinal report
Date
June 12, 1983, 13:00 local (18:00 UTC)
Place
Blackduck, MN
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N2487MPiper PA-12
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830612024849A
Case key
12207

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

On this page

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
Engine assembly,cylinder - low compressionCause
Maintenance - inadequateOther maintenance personnelCause
Fluid,oil - exhaustionCause
In-flight planning/decision - improperPilot in commandCause
Engine assembly,push rod - failure,totalCause
Forced landingLanding - flare/touchdown

Analysis

The acft made a hard landing in an alfalfa field after loss of engine power. During an enroute portion of this flt the pilot stated that oil consumption was excessive. He planned an intermediate stop for that reason. Before reaching the intermediate stop the engine 'froze'. No oil was found in the engine. The lower fuselage was coated with oil which had gone out through the breather. The #2 piston rod had failed. Compression on #1,3 and 4 cylinders was low.

Aircraft

Registration
N2487M
Reported as
Piper PA-12
Category
Airplane
Serial number
12-1560
Airframe hours
2,062
Engine
Lycoming O-290-D2, 135 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
North Country Flyers
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 2, 1983 · 29 hours before
Departed
IUL · Intl Falls, MN
Destination
DTL · Detroit Lakes, MN

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
42
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
1,303 total · 34 in this make and model · 1,278 as pilot in command · 30 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 13 knots
Visibility
7 statute miles
Lowest ceiling
2,000 ft broken
Temperature
72 °F, dew point 63 °F
Altimeter
29.00 inHg
Observed at
BJI, 20 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.