Accident Swearingen SA226-TC Metro II N237AM,
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Date:Friday 20 August 1982
Type:Silhouette image of generic SW4 model; specific model in this crash may look slightly different    
Swearingen SA226-TC Metro II
Owner/operator:Air Midwest
Registration: N237AM
MSN: TC-332
Year of manufacture:1980
Total airframe hrs:4840 hours
Engine model:GARRETT TPE331
Fatalities:Fatalities: 0 / Occupants: 12
Aircraft damage: Substantial, repaired
Location:Kansas City Downtown Municipal Airport, MO (MKC) -   United States of America
Phase: Landing
Nature:Passenger - Scheduled
Departure airport:Wichita-Mid-Continent Airport, KS (ICT/KICT)
Destination airport:Topeka-Philip Billard Airport, KS (TOP/KTOP)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
During the approach to Topeka Airport the crew was unable to extend the left gear. The crew diverted to Kansas City, and after many unsuccessful attempts to lower the left gear elected to land wheels-up. The left main gear was jammed into the gear doors. The aft hinge bolt was missing from the left inboard gear door, allowing the gear door to shift just enough to jam the gear as it started to extend. 17 days prior to the accident the loose aft hinge was noted during preflight. Company maintenance was unable to retorque the bolt due to the nut plate attachment rivets being stripped. This item was being carried as a delayed discrepancy. These parts can only be lubricated before installation. The entire assembly is almost impossible to inspect, remove, lubricate, install, torque and safety replacement of the nut plate is considered a major undertaking the manufacturer stated that "short cycling" the gear as many as 18 times would eventually break open the gear doors. This emergency method of extending the gear had not been disseminated to all operators.

landing gear,normal retraction/extension assembly..jammed
landing gear,main gear..movement restricted
door,landing gear..assembly
door,landing gear..loose
door,landing gear..disconnected
maintenance,replacement..not maintenance personnel

acft/equip,inadequate airframe..manufacturer
information insufficient..manufacturer

Accident investigation:
Investigating agency: NTSB
Report number: MKC82FA149
Status: Investigation completed
Download report: Final report



History of this aircraft

Other occurrences involving this aircraft
24 February 1983 N237AM Air Midwest 0 St. Louis, MO min
24 May 1984 N237AM Air Midwest 0 Albuquerque, NM min
10 May 2005 C-FKEX Perimeter Aviation 0 Thompson Airport, MB (YTH) sub

Revision history:


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