# NTSB DEN88LA188: Cessna T210F, N6132R, Ennis, MT, August 19, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 19, 1988, 16:30 local (22:30 UTC)
- Place: Ennis, MT
- Coordinates: 45.279411, -111.709808 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.2794&lon=-111.7098&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report January 16, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 17530
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN88LA188
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17530/pdf
- Page: https://openairdocs.org/ntsb/DEN88LA188

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Main gear collapsed, landing - roll
  - landing gear,main gear strut - previous damage (cause)
  - maintenance - improper (cause)
  - maintenance,recordkeeping - poor (contributing factor)
  - landing gear,main gear strut - fatigue (cause)
- Loss of control - on ground/water, landing
  - directional control - not possible
  - ground loop/swerve - uncontrolled
- On ground/water encounter with terrain/water, landing

## Analysis

WHILE ON A LANDING ROLLOUT, THE LEFT MAIN GEAR STRUT FAILED & SEPARATED FROM THE ACFT. THE PLT SAID HE HELD THE ACFT STRAIGHT FOR ABOUT 600 FT, THEN IT VEERED TO THE LEFT & WENT OFF THE RWY. SUBSEQUENTLY, THE LEFT WING & LEFT HORIZONTAL STABILIZER WERE DAMAGED. METALLURGICAL EXAM OF THE STRUT REVEALED THE STRUT HAD FAILED IN AN AREA THAT HAD BEEN REPAIRED AFTER PREVIOUS DAMAGE. THE PREVIOUS DAMAGE HAD THE APPEARANCE OF BEING CAUSED BY ELECTRICAL ARCING. THE STRUT SURFACE HAD BEEN REWORKED & REPAINTED. CRACKS WERE FOUND WITH ORIGINS IN THE BRITTLE, REHARDENED AREA OF THE STRUT. NO ENTRY WAS FOUND IN THE ACFT LOGBOOK OR MAINTENANCE RECORDS CONCERNING SUCH REPAIR OF THE LANDING GEAR STRUT.

## Aircraft

- Registration: [N6132R](https://openairdocs.org/deregistered/N6132R-2013-08-13), registration cancelled 2013-08-13, S/N T210-0032, built 1965 (OpenAirDocs)
- Reported make and model: CESSNA T210F
- Registry model: [Cessna T210F](https://openairdocs.org/model/cessna-t210f) (registry code 2073422) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: T210-0032
- Airframe hours: 3850
- Engines: CONTINENTAL TSIO-520-C 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: St Amand, Pierre
- Registered owner: Pierre Saint-Amand
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 19, 1988, 5 hours before
- Departed: FAT, FRESNO, CA
- Destination: 5U3
- Airport: 5U3, Big Sky, runway 18, 5,200 × 125 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 68; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 4,000 total, 2,500 in this make and model, 4,000 as pilot in command, 25 in the last 90 days, 5 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 100 statute miles
- Lowest ceiling: none
- Temperature: 81 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19880819035069A](https://openairdocs.org/incident/19880819035069A), Aug 19, 1988: Cessna T210F, Ennis, MT, Substantial damage. Left main strut broke off at the fuselage on the landing roll. Strut had been previously welded.

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.

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