# NTSB CHI92LA055: Aero Commander 690A, N96BW, Roseau, MN, December 14, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 13, 1991, 18:39 local (Dec 14, 1991, 00:39 UTC)
- Place: Roseau, MN
- Coordinates: 48.840286, -95.760643 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.8403&lon=-95.7606&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 8 uninjured
- Status: Completed, report April 27, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15369
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI92LA055
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15369/pdf
- Page: https://openairdocs.org/ntsb/CHI92LA055

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN PROPER ALIGNMENT WITH, AND NOT SELECTING THE PROPER TOUCHDOWN POINT ON THE LANDING RUNWAY.  FACTORS ASSOCIATED WITH THE ACCIDENT ARE A DARK NIGHT LIGHT CONDITION AND CROSSWINDS.

## Sequence of events

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

- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - snowbank
  - proper alignment - not maintained, pilot in command (cause)
  - weather condition - crosswind (contributing factor)
  - proper touchdown point - not selected, pilot in command (cause)
  - light condition - dark night (contributing factor)

## Analysis

THE ACCIDENT AIRPLANE COLLIDED WITH A SNOWBANK DURING A LANDING ROLL FOLLOWING A NIGHT INSTRUMENT APPROACH.  THE PILOT REPORTED THE RIGHT PROPELLER FEATHERED DURING THE LANDING. NO MECHANICAL DEFECTS WERE DISCOVERED IN THE PROPELLER SYSTEM.  GUSTY 15 TO 20 KNOT CROSSWINDS WERE PRESENT AT THE TIME OF THE ACCIDENT.  FIVE OF THE SIX PASSENGERS REPORTED THE AIRPLANE TOUCHED DOWN ON THE RIGHT SIDE OF THE RUNWAY. THREE STATEMENTS SAID THE AIRPLANE LANDED WITH THE RIGHT MAIN LANDING GEAR IN THE SNOW.

## Aircraft

- Registration: N96BW (not matched to a registry record)
- Reported make and model: AERO COMMANDER 690A
- Category: Airplane
- Serial number: 11104
- Airframe hours: 3453
- Engines: GARRETT TPE331-5-251K 717 horsepower turbo prop
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Amsair Inc
- Registered owner: Amsair Inc
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, October 22, 1991, 40 hours before
- Departed: MSP, MINNEAPOLIS, MN
- Flight plan: IFR
- Airport: ROX, Roseau Muni, runway 16, 4,400 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 9,625 total, 1,224 in this make and model, 9,625 as pilot in command, 88 in the last 90 days, 28 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 40° at 15 knots, gusting 20
- Visibility: 3 statute miles
- Lowest ceiling: 1,000 ft broken
- Temperature: 19 °F, dew point 18 °F
- Altimeter: 29.00 inHg
- Observed at: ROX, 1 nm away

## 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 19911213056229A](https://openairdocs.org/incident/19911213056229A), Dec 13, 1991: Gulstm 690A, Roseau, MN, Substantial damage. Went off side of runway on landing into snowbank. Strong crosswind. Slick runway.

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.