# NTSB CHI93LA040: Cessna 401B, N7989Q, Rice Lake, WI, November 27, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 27, 1992, 05:15 local (11:15 UTC)
- Place: Rice Lake, WI
- Coordinates: 45.489654, -91.72985 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.4897&lon=-91.7298&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 28, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15629
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI93LA040
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15629/pdf
- Page: https://openairdocs.org/ntsb/CHI93LA040

## Probable cause

IMPROPER RIGGING OF THE RIGHT MAIN LANDING GEAR RETRACT BELLCRANK BY OTHER MAINTENANCE PERSONNEL.

## Sequence of events

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

- Main gear collapsed, landing - roll
  - landing gear,normal retraction/extension assembly - failure,total
  - maintenance,adjustment - improper, other maintenance personnel (cause)

## Analysis

THE PILOT OF AN ON-DEMAND AIR FREIGHT OPERATION WAS ON LANDING ROLLOUT AT HIS DESTINATION WHEN THE RIGHT MAIN LANDING GEAR COLLAPSED. THE INVESTIGATION REVEALED THAT THE RIGHT MAIN LANDING GEAR RETRACT BELLCRANK ATTACHING BOLT HAD FAILED.

## Aircraft

- Registration: [N7989Q](https://openairdocs.org/aircraft/N7989Q), registered now, S/N 401B0208, built 1971 (OpenAirDocs)
- Reported make and model: CESSNA 401B
- Registry model: [Cessna 401B](https://openairdocs.org/model/cessna-401b) (registry code 207590E) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 401B0208
- Airframe hours: 5840
- Engines: CONTINENTAL TISO-520-E 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: Freight Runners Express, Inc., doing business as Air Charter Express
- Registered owner: Freight Runners Express, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, November 23, 1992, 10 hours before
- Departed: EAU, EAU CLAIRE, WI
- Flight plan: VFR
- Airport: RIE, Rice Lake, runway 36, 3,728 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 4,000 total, 1,200 in this make and model, 3,950 as pilot in command, 130 in the last 90 days, 35 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: calm
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 30 °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 19921127048349A](https://openairdocs.org/incident/19921127048349A), Nov 27, 1992: Cessna 401B, Rice Lake, WI, Substantial damage. Right main landing gear collapsed on landing roll. Side overload indicated may have been out of rig.

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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