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NTSB Report
June 20, 1985 · Piper PA-28-180 · N7750N
Orleans, IN
Overview
Report Status
Preliminary report
Event Type
Accident
Date
June 20, 1985
Injury Outcomes
1 injury (1 serious injury)
Location
Orleans, IN
Aircraft
Piper PA-28-180
Tail Number
N7750N
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
CHI85FEX03
DURING FLT, THE PLT NOTED THAT THE ENG RPM DROPPED FROM 2500 TO 2000. HE COULD NOT RESTORE THE RPM. HE THEN HEARD A LOUD NOISE FROM THE ENG COMPARTMENT & THE ENG SEIZED. SUBSEQUENTLY, THE ACFT WAS DAMAGED DURING AN EMERG LANDING IN A CORN FIELD. A TEARDOWN OF THE ENG REVEALED THAT THE #3 ROD, PN 74502-S, WAS BROKEN, BENT & WEDGED BETWEEN THE #4 ROD & ENG CASE. THE #3 BEARING SURFACE ON THE CRANKSHAFT WAS GALLED & BOTH ROD BOLTS ON THE #3 CONNECTING ROD WERE BROKEN. ALSO, THE #2 & #4 CONNECTING ROD BEARINGS, PN 72218, HAD SPUN. METAL PARTICALS WERE FOUND THRU-OUT THE ENG. THERE WAS STILL 5-1/2 QTS OF OIL IN THE ENG.
Full Narrative
DURING FLT, THE PLT NOTED THAT THE ENG RPM DROPPED FROM 2500 TO 2000. HE COULD NOT RESTORE THE RPM. HE THEN HEARD A LOUD NOISE FROM THE ENG COMPARTMENT & THE ENG SEIZED. SUBSEQUENTLY, THE ACFT WAS DAMAGED DURING AN EMERG LANDING IN A CORN FIELD. A TEARDOWN OF THE ENG REVEALED THAT THE #3 ROD, PN 74502-S, WAS BROKEN, BENT & WEDGED BETWEEN THE #4 ROD & ENG CASE. THE #3 BEARING SURFACE ON THE CRANKSHAFT WAS GALLED & BOTH ROD BOLTS ON THE #3 CONNECTING ROD WERE BROKEN. ALSO, THE #2 & #4 CONNECTING ROD BEARINGS, PN 72218, HAD SPUN. METAL PARTICALS WERE FOUND THRU-OUT THE ENG. THERE WAS STILL 5-1/2 QTS OF OIL IN THE ENG.
Flight
Event TypeAccident
Event Time13:35 EDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-28-180
Tail NumberN7750N
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A4A · Reciprocating · 180
Seats4
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 38 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind230° @ 4 kt
Visibility7 sm
CeilingBroken clouds 6000 ft
Temperature / Dew Point66 F / 54
Altimeter30.00 inHg
Observation Time12:35
Weather SourceWIT