# Accident 20020928027689A: Cessna 421B, Mineral Wells, TX, September 28, 2002

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 28, 2002, 10:45 local time
- Place: Mineral Wells, TX
- Airport: Mineral Wells Airport
- Damage: Substantial damage
- Operating rules: General operating rules (Part 91)
- Location: 32.7817° N, 98.5089° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=32.7817&lon=-98.5089&mi=10
- Aircraft: N7926R, a cancelled registration (https://openairdocs.org/deregistered/N7926R-2013-04-11) (OpenAirDocs)
- Registry model: Cessna 421B (registry code 2076014, https://openairdocs.org/model/cessna-421b) (OpenAirDocs)
- Registry engine: Continental GTSIO-520-C (registry code 17035, https://openairdocs.org/engine/continental-gtsio-520-c) (OpenAirDocs)
- Reported make and model: CESSNA 421B
- NTSB investigation: [NTSB FTW02LA269](https://openairdocs.org/ntsb/FTW02LA269) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20020928027689A

## Narrative

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

(-23) ON SEPTEMBER 28, 2002, AT 10:45 CST, A CESSNA MODEL 421B, REGISTRATION NUMBER N7926R, OPERATED BY JON ANTHONY O'BRIEN, COMMERCIAL PILOT CERTIFICATE NUMBER 463270545, CRASHED DURING LANDING ON RUNWAY 13, MINERAL WELLS MUNICIPAL AIRPORT (MWL). THE FLIGHT ORIGINATED AT ARLINGTON MUNICIPAL AIRPORT (GKY). ACCORDING TO THE PILOT AND WITNESSES, THE LEFT MAIN LANDING GEAR FAILED AFTER TOUCHDOWN, ALLOWING THE LEFT WINGTIP AND PROPELLER TO CONTACT THE RUNWAY, WITH SUBSEQUENT LOSS OF DIRECTIONAL CONTROL. THE AIRCRAFT DEPARTED THE RUNWAY CAME TO REST APPROXIMATELY 50 FEET LEFT OF RUNWAY 13 AT MID FIELD. THERE WERE NO INJURIES. THE AIRCRAFT WAS SUBSTANTIALLY DAMAGED. VISUAL METEOROLOGICAL CONDITIONS PREVAILED, AND NO FLIGHT PLAN WAS FILED. THE LEFT LANDING GEAR DOWNLOCK LINK ADJUSTING SCREW SHOWED EVIDENCE OF A PRE-ACCIDENT FATIGUE CRACK. ARTICULATION OF THE LEFT MAIN GEAR DOWNLOCK LINK, PART NUMBER 0841110, WAS RESTRICTED BY AN IMPROPERLY POSITIONED BEARING IN THE LEFT MAIN LANDING GEAR DOWNLOCK LINK END FITTING, PART NUMBER 0841111. THE AFFECTED PARTS WERE REMOVED FROM THE AIRCRAFT AND FORWARDED TO NTSB FOR A DETAILED EXAMINATION.

## 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 FTW02LA269](https://openairdocs.org/ntsb/FTW02LA269), Sep 28, 2002: Cessna 421B (N7926R), Mineral Wells, TX, substantial damage. Probable cause: The pilot's failure to maintain a proper descent rate which resulted hard landing and a subsequent failure of the main landing gear.

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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