# NTSB CHI85LA159: Cessna 310B, N5471A, Shelbyville, IN, April 8, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 8, 1985, 11:04 local (16:04 UTC)
- Place: Shelbyville, IN
- Coordinates: 39.520751, -85.769653 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.5208&lon=-85.7697&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13039
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85LA159
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13039/pdf
- Page: https://openairdocs.org/ntsb/CHI85LA159

## Sequence of events

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

- Gear collapsed, landing - roll
  - landing gear,normal retraction/extension assembly - failure,total (cause)
  - gear down and locked - not possible
- Loss of control - on ground/water, landing
  - directional control - not possible
  - ground loop/swerve - uncontrolled
- On ground/water collision with object, landing
  - object - runway light (contributing factor)

## Analysis

WHEN THE GEAR WAS EXTENDED DURING THE APCH, A DOWN & LOCKED INDICATION WAS NOT OBTAINED. THE PLT MADE SEVERAL ATTEMPTS TO LOCK THE GEAR DOWN, USING BOTH THE ELECTRICAL & MANUAL SYSTEMS, BUT WAS UNABLE. AFTER TOUCHDOWN, THE RIGHT MAIN GEAR COLLAPSED. THE ACFT THEN WENT OFF THE RIGHT SIDE OF THE RWY & THE RIGHT HORIZONTAL STABILIZER HIT A RWY LIGHT. AN EXAM REVEALED THAT THE RETRACTION/EXTENSION TORQUE TUBE TO THE RIGHT MAIN GEAR WAS BENT & SHEARED, THUS PREVENTING FULL EXTENSION OF THE GEAR.

## Aircraft

- Registration: [N5471A](https://openairdocs.org/deregistered/N5471A-1989-07-27), registration cancelled 1989-07-27, S/N 35671 (OpenAirDocs)
- Reported make and model: CESSNA 310B
- Registry model: [Cessna 310B](https://openairdocs.org/model/cessna-310b) (registry code 2074208) (OpenAirDocs)
- Category: Airplane
- Serial number: 35671
- Airframe hours: 3840
- Engines: CONTINENTAL O-470-M 240 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Fred Kuhling
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 5, 1984
- Departed: I67, HARRISON, OH
- Airport: 3SM, Shelbyville Mun., runway 18, 3,737 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 1,973 total, 42 in this make and model, 1,813 as pilot in command, 31 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 8 knots
- Visibility: 10 statute miles
- Lowest ceiling: 3,500 ft broken

## 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 19850408013979A](https://openairdocs.org/incident/19850408013979A), Apr 8, 1985: Cessna 310B, Shelbyville, IN, Substantial damage. Unable to resolve unsafe gear indication. Right main collapsed on landing. Torque tube bent and sheared.

## Other investigations on N5471A (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 MIA74FLA16](https://openairdocs.org/ntsb/MIA74FLA16), Sep 10, 1973: Cessna 310B (N5471A), Panama City, FL, substantial damage

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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