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NTSB Report
April 16, 1984 · Swearingen SA226TC · N163MA
Milwaukee, WI
Overview
Report Status
Preliminary report
Event Type
Incident
Date
April 16, 1984
Injury Outcomes
No injuries (10 uninjured)
Location
Milwaukee, WI
Aircraft
Swearingen SA226TC
Tail Number
N163MA
Operator
Midstate Airlines
Injuries
None
Aircraft Damage
Minor
NTSB Number
CHI84IA155
A GEAR UP LANDING WAS PERFORMED AFTER THE CREW WAS UNABLE TO EXTEND THE RGT MAIN GEAR THRU NORMAL & EMERG PROCEDURES. AN EXAM OF THE ACFT DISCLOSED THE RGT MAIN GEAR DOOR AFT HINGE BOLT WAS SLIGHTLY BENT & DIFFICULT TO ROTATE IN ITS BUSHING. THE BUSHING & BOLT WERE DRY & HAD NOT BEEN LUBRICATED RECENTLY. THE HYDRAULIC CYLINDER WAS NOT CAPABLE OF SUPPLYING ENOUGH PRESSURE TO OVERCOME THE BINDING DOOR. THE BUSHING HAD NOT RECENTLY BEEN INSPECTED OR LUBRICATED BY MAINTENANCE PERSONNEL BECAUSE OF ITS LOCATION BEING DIFFICULT TO ACCESS.
Full Narrative
A GEAR UP LANDING WAS PERFORMED AFTER THE CREW WAS UNABLE TO EXTEND THE RGT MAIN GEAR THRU NORMAL & EMERG PROCEDURES. AN EXAM OF THE ACFT DISCLOSED THE RGT MAIN GEAR DOOR AFT HINGE BOLT WAS SLIGHTLY BENT & DIFFICULT TO ROTATE IN ITS BUSHING. THE BUSHING & BOLT WERE DRY & HAD NOT BEEN LUBRICATED RECENTLY. THE HYDRAULIC CYLINDER WAS NOT CAPABLE OF SUPPLYING ENOUGH PRESSURE TO OVERCOME THE BINDING DOOR. THE BUSHING HAD NOT RECENTLY BEEN INSPECTED OR LUBRICATED BY MAINTENANCE PERSONNEL BECAUSE OF ITS LOCATION BEING DIFFICULT TO ACCESS.
Flight
Event TypeIncident
Event Time17:57 CST
Nearest AirportGeneral Mitchell (0nm N)
Runway0
Runway Length9690 ft
Runway Width200 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSwearingen SA226TC
Tail NumberN163MA
Aircraft CategoryAir
DamageMinor
OperatorMidstate Airlines
Operating RulePart 135
Engines2
Engine TypeTurboprop
Engine DetailsAiresearch · TPE 331 · Turboprop · 840
Seats22
People & Injuries
Injury SummaryNo injuries (10 uninjured)
Fatal0
Serious0
Minor0
Uninjured10
Total10
Crew 1Age 35 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 25 kt, gusting 35 kt
Visibility8 sm
CeilingOvercast 2300 ft
Temperature / Dew Point45 C / 0 C
Altimeter29.00 inHg
Observation Time18:02
Weather SourcePILO