# Accident 20030124001199A: Mooney M20D, Casa Grande, AZ, January 24, 2003

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 24, 2003, 11:40 local time
- Place: Casa Grande, AZ
- Airport: Casa Grande Municipal Airport
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 32.8707° N, 111.7299° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=32.8707&lon=-111.7299&mi=10
- Aircraft: N6639U, a cancelled registration (https://openairdocs.org/deregistered/N6639U-2014-11-12) (OpenAirDocs)
- Registry model: Mooney M20D (registry code 5870210, https://openairdocs.org/model/mooney-m20d) (OpenAirDocs)
- Registry engine: Lycoming O&VO-360 series (registry code 41514, https://openairdocs.org/engine/lycoming-o-vo-360-series) (OpenAirDocs)
- Reported make and model: MOONEY M20D
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 1,260 total, 245 in this make and model, 9 in the last 90 days
- NTSB investigation: [NTSB LAX03LA085](https://openairdocs.org/ntsb/LAX03LA085) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20030124001199A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(.19) ON JANUARY 24, 2003, ABOUT 1140 MOUNTAIN STANDARD TIME, A MOONEY M20D, N6639U, EXPERIENCED THE COLLAPSE OF ITS MAIN LANDING GEAR DURING LANDING ROLLOUT AT THE CASA GRANDE MUNICIPAL AIRPORT, ARIZONA. THE AIRPLANE WAS SUBSTANTIALLY DAMAGED. NEITHER THE PRIVATE PILOT, WHO OWNED AND OPERATED THE AIRPLANE, NOR THE PASSENGER WAS INJURED. THE AIRPLANE WAS BEING OPERATED ON A PERSONAL FLIGHT UNDER 14 CFR PART 91. VISUAL METEOROLOGICAL CONDITIONS PREVAILED. NO FLIGHT PLAN WAS FILED FOR THE LOCAL AREA FLIGHT THAT ORIGINATED FROM GASA GRANDE AT AN UNREPORTED TIME. ON FEBRUARY 7, 2003, THE FEDERAL AVIATION ADMINISTRATION COORDINATOR REPORTED THAT THE AIRPLANE EXAMINATION REVEALED SUBSTANTIAL DAMAGE HAD RESULTED DURING THE GEAR COLLAPSE EVENT. THE AIRPLANE HAD UNDERGONE RECENT MAINTENANCE TO ITS LANDING GEAR. (-23) ON JANUARY 24, 2003, ABOUT 1140 MOUNTAIN STANDARD TIME, A MOONEY M20D, N6639U, EXPERIENCED THE COLLAPSE OF ITS MAIN LANDING GEAR DURING LANDING ROLLOUT AT THE CASA GRANDE MUNICIPAL AIRPORT, ARIZONA. THE AIRPLANE WAS SUBSTANTIALLY DAMAGED. NEITHER THE PRIVATE PILOT, WHO OWNED AND OPERATED THE AIRPLANE, NOR THE PASSENGER WAS INJURED. THE AIRPLANE WAS BEING OPERATED ON            A PERSONAL FLIGHT UNDER 14 CFR PART 91. VISUAL METEOROLOGICAL CONDITIONS PREVAILED. NO FLIGHT PLAN WAS FILED FOR THE LOCAL AREA FLIGHT THAT ORIGINATED FROM CASA GRANDE AT AN UNREPORTED TIME.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX03LA085](https://openairdocs.org/ntsb/LAX03LA085), Jan 24, 2003: Mooney M20D (N6639U), Casa Grande, AZ, substantial damage. Probable cause: Collapse of the landing gear during landing rollout, resulting from the pilot/mechanic's incorrect landing gear locking mechanism (linkage) adjustment.

## Other reports on N6639U (1)

Matched to the same aircraft by N-number and date.

- [Incident 19850622052199I](https://openairdocs.org/incident/19850622052199I), Jun 22, 1985: Mooney M20D (N6639U), Napa, CA, Minor damage. During turn off runway after landing and during taxi,gear collapsed. Probable inadvertent retraction.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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