# NTSB CHI80FEP09: Beech 99, N44KX, La Crosse, WI, January 17, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 17, 1980
- Place: La Crosse, WI · LA CROSSE, WI
- Location: 43.8251° N, 91.2246° W: Placed by OpenAirDocs: center of La Crosse, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.8251&lon=-91.2246&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report April 1, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 132247
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI80FEP09
- Page: https://openairdocs.org/ntsb/CHI80FEP09

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0091  80/1/17    LA CROSSE,WI        BEECH 99            CR-  0  0  2  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 0651                    N44KX               PX-  0  0  2  COMMUTER AIR CARRIER      30, 4742 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-PASSG S-D        1734 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - LA CROSSE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          LA CROSSE,WI                MILWAUKEE,WI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: SWITCHES,LEVERS,CRANKING MECHANISM,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - JAMMED
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
        FACTOR(S)
           SYSTEMS - ELECTRICAL SYSTEM: GENERATORS/ALTERNATORS
           MISCELLANEOUS ACTS,CONDITIONS - FRAYED
           MISCELLANEOUS ACTS,CONDITIONS - ELECTRICAL FAILURE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- WIRE BUNDLE JAMMED GR MECHSM. BROKEN WIRES IN BNDL CAUSED DUAL ALT FLR. BNDL PROPERLY ROUTED.
```

## Aircraft

- Registration: [N44KX](https://openairdocs.org/deregistered/N44KX-1981-09-29), registration cancelled 1981-09-29, S/N U-55, built 1968 (OpenAirDocs)
- Reported make and model: BEECH 99
- Registry model: [Beech 99](https://openairdocs.org/model/beech-99) (registry code 1154002) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage
- Airport: La Crosse Muni

## 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 19800117001049A](https://openairdocs.org/incident/19800117001049A), Jan 17, 1980: Beech 99, La Crosse, WI, Substantial damage. Lost both alternators on takeoff. Unable to check gear down. Gear collapsed on landing. Torque tube snagged wires.

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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