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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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November 21, 1985 · Rockwell 112 · N10285

Pekin, IL

Overview

Report Status
Preliminary report
Event Type
Accident
Date
November 21, 1985
Injury Outcomes
1 injury (1 minor injury)
Location
Pekin, IL
Aircraft
Rockwell 112
Tail Number
N10285
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CHI86LA032

FOLLOWING A TOP OVERHAUL OF THE ENGINE A TEST FLIGHT WAS PLANNED TO BREAK IN THE CYLINDERS AND RINGS. PRIOR TO THIS FLIGHT THE ENGINE WAS OPERATED FOR A SHORT PERIOD ON THE GROUND THEN SHUT DOWN AND CHECKED FOR OIL LEAKS WITH NEGATIVE RESULTS. THE TAKEOFF AND INITIAL CLIMB WERE UNEVENTFUL. SHORTLY AFTER LEVELOFF THE PROP SURGED MOMENTARILY AND ENGINE PERFORMANCE DETERIORATED RAPIDLY. THE PILOT SHUT THE ENGINE DOWN AND ENTERED THE VFR TRAFFIC PATTERN ON DOWNWIND. HE LOWERED THE GEAR AND LANDED SHORT OF THE RUNWAY. AN EXAMINATION OF THE ENGINE FOLLOWING THE ACCIDENT REVEALED THAT A 'B' NUT ON THE PORP GOVERNOR LINE HAD BACKED OFF, ALLOWING MOST OF THE OIL TO DRAIN OUT, ACCORDING TO THE PILOT.

Full Narrative

FOLLOWING A TOP OVERHAUL OF THE ENGINE A TEST FLIGHT WAS PLANNED TO BREAK IN THE CYLINDERS AND RINGS. PRIOR TO THIS FLIGHT THE ENGINE WAS OPERATED FOR A SHORT PERIOD ON THE GROUND THEN SHUT DOWN AND CHECKED FOR OIL LEAKS WITH NEGATIVE RESULTS. THE TAKEOFF AND INITIAL CLIMB WERE UNEVENTFUL. SHORTLY AFTER LEVELOFF THE PROP SURGED MOMENTARILY AND ENGINE PERFORMANCE DETERIORATED RAPIDLY. THE PILOT SHUT THE ENGINE DOWN AND ENTERED THE VFR TRAFFIC PATTERN ON DOWNWIND. HE LOWERED THE GEAR AND LANDED SHORT OF THE RUNWAY. AN EXAMINATION OF THE ENGINE FOLLOWING THE ACCIDENT REVEALED THAT A 'B' NUT ON THE PORP GOVERNOR LINE HAD BACKED OFF, ALLOWING MOST OF THE OIL TO DRAIN OUT, ACCORDING TO THE PILOT.

Flight

Event TypeAccident
Event Time16:30 CST
Nearest AirportPekin Municipal Airport (0nm N)
Runway9
Runway Length3800 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftRockwell 112
Tail NumberN10285
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-C1D6 · Reciprocating · 200
Seats4

People & Injuries

Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 28 · Second Class

Conditions

ConditionsVMC
LightDusk
Wind80° @ 15 kt, gusting 7 kt
Visibility7 sm
CeilingOvercast 7500 ft
Temperature / Dew Point30 C / 25 C
Altimeter30.00 inHg
Weather SourcePILO

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Appendix: Source Data