Individually Owned: 150,657
Corporate Owned: 137,281
Casa Grande Municipal Airport
Aircraft Accident/Incident Report
Casa Grande, Arizona 85222
Friday, January 24, 2003 11:45 MST
NTSB Narrative Summary Released at Completion of Accident
Following a normal touchdown and during the rollout, the airplane's main landing gear collapsed. Thereafter, as the airplane slid to a stop it veered off the runway and collided with a runway light. The pilot reported that during his approach for landing, he had verified that the landing gear was extended. He had confirmed its extension by observing the green gear down lights illuminate. The pilot had previously performed maintenance to the landing gear system. The airplane had been operated for 4.77 hours since receiving its last annual inspection. According to the pilot, the gear collapsed due to an adjustment problem, which prevented the over-center linkage from completely locking. The FAA indicated that the pilot, who holds an airframe and powerplant mechanic certificate, had performed the landing gear related maintenance.
NTSB Probable Cause Narrative
Collapse of the landing gear during landing rollout, resulting from the pilot/mechanic's incorrect landing gear locking mechanism (linkage) adjustment.
Event Information
| Type of Event | Accident |
| Event Date | 1/24/2003 |
| Event Day of the Week | Friday |
| Time of Event | 1145 |
| Event Time Zone | Mountain Standard Time |
| Event City | Casa Grande |
| Event State | ARIZONA |
| Event Country | -- |
| Zipcode of the event site | 85222 |
| Event Date Year | 2003 |
| Event Date Month | 1 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 573217N |
| Event Location Longitude | 1114601W |
| Event Location Airport | Casa Grande Municipal |
| Event Location Nearest Airport ID | CGZ |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 1464 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1155 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | CGZ |
| Elevation of weather observation facility | 1464 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | MST |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 19 |
| Dew Point at event time (in degress fahrenheit) | 2 |
| Wind Direction (degrees magnetic) | 140 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.05 |
| 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 | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 16548 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Feb 7 2003 12:00AM |
| NTSB Notification Time | 1000 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Oct 28 2004 10:11AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | WP-FSDO Scottsdale, AZ |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N6639U |
| NTSB Number | LAX03LA085 |
| 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 | Mooney |
| Aircraft Model | M20D |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 134 |
| Certified Max Gross Weight | 2575 |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jun 12 2002 12:00AM |
| Airframe hours since last inspection | 5 |
| Airframe Hours | 2834 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Jack H. Arend |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Holbrook |
| Aircraft Owner State | AZ |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 86025 |
| Operator is an individual? | No |
| Operator Name | -- |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Tonopah |
| Operator State | AZ |
| Operator Country | USA |
| Operator Zip code | 85354 |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | CGZ |
| Departure City | Casa Grande |
| Departure State | AZ |
| Departure Country | USA |
| Departure Time | 1045 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | CGZ |
| Destination City | Casa Grande |
| Destination State | AZ |
| Destination Country | USA |
| Specific Phase of Flight | Landing - roll |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Aug 25 2004 6:37PM |
| User who most recently changed record | COOS |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 05 |
| Runway Length | 5200 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |