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NTSB Report
January 19, 1983 · Piper PA-32-300 · N5818F
Monroe, WI
Overview
Report Status
Preliminary report
Event Type
Accident
Date
January 19, 1983
Injury Outcomes
1 injury (1 minor injury)
Location
Monroe, WI
Aircraft
Piper PA-32-300
Tail Number
N5818F
Injuries
Minor
Aircraft Damage
Destroyed
NTSB Number
CHI83FA086
WHILE CRUISING AT 4,000 FT MSL THE ENG QUIT. DURING A FORCED LANDING ON ROLLING FARM TERRAIN BOTH MAIN LANDING GEAR SEPARATED. THE ACFT THEN SLID THROUGH A BARBED WIRE FENCE & CAUGHT FIRE. METALLURGICAL EXAMINATION REVEALED A FATIGUE FAILURE OF THE IDLE SET SCREW THAT CONTROLS THE DIAPHRAM SETTING IN THE BENDIX FUEL INJECTION (P/N 2424273-10). THE STEMOF THE SCREW FAILED AS A RESULT OF REVERSED BENDING STRESSES CAUSED BY SIDE TO SIDE FORCES. THIS TYPE OF FAILURE COULD NOT BE EXPLAINED AS THE PRINCIPAL FORCE APPLIED TO THE ADJUSTMENT SCREW WOULD PRIMARILY BE IN A TWISTING MOTION RATHER THAN A SIDE TO SIDE APPLIED FORCE.
Full Narrative
WHILE CRUISING AT 4,000 FT MSL THE ENG QUIT. DURING A FORCED LANDING ON ROLLING FARM TERRAIN BOTH MAIN LANDING GEAR SEPARATED. THE ACFT THEN SLID THROUGH A BARBED WIRE FENCE & CAUGHT FIRE. METALLURGICAL EXAMINATION REVEALED A FATIGUE FAILURE OF THE IDLE SET SCREW THAT CONTROLS THE DIAPHRAM SETTING IN THE BENDIX FUEL INJECTION (P/N 2424273-10). THE STEMOF THE SCREW FAILED AS A RESULT OF REVERSED BENDING STRESSES CAUSED BY SIDE TO SIDE FORCES. THIS TYPE OF FAILURE COULD NOT BE EXPLAINED AS THE PRINCIPAL FORCE APPLIED TO THE ADJUSTMENT SCREW WOULD PRIMARILY BE IN A TWISTING MOTION RATHER THAN A SIDE TO SIDE APPLIED FORCE.
Flight
Event TypeAccident
Event Time04:25 CST
Nearest Airport0nm
Runway0
Flight Plan FiledIFR
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-32-300
Tail NumberN5818F
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 135
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540-KIG5 · Reciprocating · 300
Seats2
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 31 · Second Class
Conditions
ConditionsVMC
LightDark Night
Wind360°
Visibility15 sm
CeilingBroken clouds 25000 ft
Temperature / Dew Point10 C / 0 C
Altimeter30.00 inHg
Observation Time10:52
Weather SourceWFAC