Mccarthy Airport
Aircraft Accident/Incident Report

Mccarthy, Alaska 99695
Thursday, May 29, 2003 19:00 AKD

NTSB Narrative Summary Released at Completion of Accident

The private certificated pilot, holder of an aviation mechanic certificate, was landing at a remote airport on a cross-country business flight. He said that during the landing roll, the left main landing gear suddenly collapsed. The pilot indicated that the airplane is equipped with one landing gear position light. He said prior to landing, he observed the right main landing gear and the nose gear position via a mirror positioned on the right engine nacelle. They appeared to be extended, and the landing gear position light was indicating green. The airplane received damage to the left flap, and the underside of the fuselage. The pilot indicated the landing gear drive mechanism consists of an actuator rod, driven by an electric motor. He noted that the main landing gear had been subjected to side loads during the flight just prior to accident flight, and either the left main landing gear actuator rod, or associated support structure, may have been damaged. As of July 2004, he had not had an opportunity to thoroughly inspect the landing gear system to determine why the landing gear collapsed.

NTSB Probable Cause Narrative

The collapse of the left main landing gear during the landing roll for undetermined reasons.

Event Information

Type of Event Accident
Event Date 5/29/2003
Event Day of the Week Thursday
Time of Event 1900
Event Time Zone --
Event City McCarthy
Event State ALASKA
Event Country --
Zipcode of the event site 99695
Event Date Year 2003
Event Date Month 5
MidAir Collision Indicator --
On Ground Collision occurred ? --
Event Location Latitude 612613N
Event Location Longitude 1425413W
Event Location Airport McCARTHY
Event Location Nearest Airport ID 15Z
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 1531
Weather Briefing Completeness Full
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 50
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 16206
NTSB Notification Source PILOT
NTSB Notification Date May 30 2003 12:00AM
NTSB Notification Time 1426
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Sep 29 2004 1:02PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-AL-ANC FSDO 03

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5712X
NTSB Number ANC03LA053
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 320
Aircraft Series Identifier --
Aircraft Serial Number 0012
Certified Max Gross Weight 4990
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 24 2003 12:00AM
Airframe hours since last inspection 30
Airframe Hours 3173
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Laura Sinnott
Aircraft Owner Street Address --
Aircraft Owner City Eagle River
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99577
Operator is an individual? No
Operator Name Kenneth W. Simonis
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Anchorage
Operator State AK
Operator Country USA
Operator Zip code 99501
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code PAMR
Departure City Anchorage
Departure State AK
Departure Country USA
Departure Time 1750
Departure Time Zone ADT
Destination Same as Local Flt crash at destination city
Destination Airport Code 15Z
Destination City McCarthy
Destination State AK
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Jul 28 2004 2:02PM
User who most recently changed record PETL
Since inspection or accident Time of Accident
Event Location Runway Number and Location 01
Runway Length 3500
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --