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NTSB Report
March 24, 1982 · Beech 65-A90 · N6069C
Kalamazoo, MI
Overview
Report Status
Preliminary report
Event Type
Accident
Date
March 24, 1982
Injury Outcomes
No injuries (2 uninjured)
Location
Kalamazoo, MI
Aircraft
Beech 65-A90
Tail Number
N6069C
Operator
Dowling Bag
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI82FA098
THE PLT HEARD A GRINDING NOISE WHEN HE ATTEMPTED TO LOWER THE LANDING GEAR. THE GEAR WOULD NOT EXTEND WITH EITHER THE NORMAL OR EMERGENCY SYSTEMS. THE ACFT LANDED WITH THE GEAR IN THE PARTIALLY EXTENDED POSITION. SUBSEQUENT TO EXAMINATIONOF THE NOSE LANDING GEAR ACTUATOR BY THE MANUFACTURER, THE GEAR BOX FOR THE NOSE GEAR ACTUATOR WAS DISASSEMBLED. IT WAS STILL PACKED WITH GREASE. WHILE REMOVING THE MASS OF GREASE FROM AROUND THE DRIVE PINION GEAR, A SMALL NUT, FOREIGN TO THE INSIDE OF THE GEAR BOX, WAS FOUND BURIED, AND INVISIBLE, IN THE GREASE THAT WAS PACKED AROUND THE BEVELED GEARS. EXAMINATION OF THE NUT SHOWED INDENTATIONS OF TWO OPPOSITE SIDES. PLACEMENT OF THE NUT ON EITHER SIDE OF THE POINT WHEREBOTH BEVELED GEARS MET WOULD JAM THE ROTATION IN EITHER THE RETRACT OF EXTEND CYCLE. ON 12/23/77 THE GEAR ACTUATORS WEREREPLACED WITH REBUILT PARTS.
Full Narrative
THE PLT HEARD A GRINDING NOISE WHEN HE ATTEMPTED TO LOWER THE LANDING GEAR. THE GEAR WOULD NOT EXTEND WITH EITHER THE NORMAL OR EMERGENCY SYSTEMS. THE ACFT LANDED WITH THE GEAR IN THE PARTIALLY EXTENDED POSITION. SUBSEQUENT TO EXAMINATIONOF THE NOSE LANDING GEAR ACTUATOR BY THE MANUFACTURER, THE GEAR BOX FOR THE NOSE GEAR ACTUATOR WAS DISASSEMBLED. IT WAS STILL PACKED WITH GREASE. WHILE REMOVING THE MASS OF GREASE FROM AROUND THE DRIVE PINION GEAR, A SMALL NUT, FOREIGN TO THE INSIDE OF THE GEAR BOX, WAS FOUND BURIED, AND INVISIBLE, IN THE GREASE THAT WAS PACKED AROUND THE BEVELED GEARS. EXAMINATION OF THE NUT SHOWED INDENTATIONS OF TWO OPPOSITE SIDES. PLACEMENT OF THE NUT ON EITHER SIDE OF THE POINT WHEREBOTH BEVELED GEARS MET WOULD JAM THE ROTATION IN EITHER THE RETRACT OF EXTEND CYCLE. ON 12/23/77 THE GEAR ACTUATORS WEREREPLACED WITH REBUILT PARTS.
Flight
Event TypeAccident
Event Time19:03 EST
Nearest AirportKalamazoo (0nm N)
Runway23
Runway Length3925 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech 65-A90
Tail NumberN6069C
Aircraft CategoryAir
DamageSubstantial
OperatorDowling Bag
Operating RulePart 91
Engines2
Engine TypeTurboprop
Engine DetailsP & W · PT6A-20 · Turboprop · 550
Seats8
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 45 · Unknown
Conditions
ConditionsVMC
LightDusk
Wind190° @ 8 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter30.00 inHg
Observation Time18:00