# NTSB CHI82DA285: Cessna 310P, N5746M, Marion, IL, July 30, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 30, 1982, 15:30 local (20:30 UTC)
- Place: Marion, IL
- Location: 37.7550° N, 89.0111° W: Placed by OpenAirDocs at VETERANS AIRPORT OF SOUTHERN ILLINOIS (MWA), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7550&lon=-89.0111&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 30, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 71582
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI82DA285
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71582/pdf
- Page: https://openairdocs.org/ntsb/CHI82DA285

## Sequence of events

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

- Main gear collapsed, landing - flare/touchdown
  - touch-and-go - performed, dual student
  - landing gear,main gear strut - fatigue (cause)
  - landing gear,main gear strut - failure,total (cause)

## Analysis

THE AIRCRAFTS RIGHT MAIN LANDING GEAR COLLAPSED DURING LANDING. THE INSTRUCTOR AND STUDENT WERE PRACTICING TOUCH AND GO LANDINGS WHEN THE ACCIDENT OCCURRED. EXAMINATION OF THE GEAR REVEALED THE TORQUE TUBE ASSEMBLY (P/N 504-5010-8) WAS BROKEN AT THE FORWARD AND REAR EAR. THERE WAS A PRE-EXISTING CRACK FORWARD AND THE REAR FAILED IN TENSION. THE TORQUE TUBE HAD 5706 HOURS FLIGHT TIME.

## Aircraft

- Registration: [N5746M](https://openairdocs.org/aircraft/N5746M), registered now, S/N 310P0046 (OpenAirDocs)
- Reported make and model: CESSNA 310P
- Registry model: [Cessna 310P](https://openairdocs.org/model/cessna-310p) (registry code 2074238) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 0046
- Airframe hours: 5706
- Engines: CONTINENTAL IO-470-VO 260 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Southern Illinois University
- Registered owner: Southern Illinois University
- Departed: MWA, MARION, IL
- Destination: MWA, MARION, IL
- Airport: MWA, Williamson County, runway 2, 6,502 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; flight instructor, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 10,500 total, 630 in this make and model, 10,400 as pilot in command, 225 in the last 90 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 340° at 7 knots
- Visibility: 7 statute miles
- Temperature: 190 °F
- Altimeter: 30.00 inHg

## 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 19820730034739A](https://openairdocs.org/incident/19820730034739A), Jul 30, 1982: Cessna 310P, Marion, IL, Substantial damage. Right main landing gear collapsed on landing practice. Had fatigue cracks in torque tube assembly.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.