# NTSB MKC86LA040: Beech C23, N67248, Dubuque, IA, December 30, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 30, 1985, 15:00 local (21:00 UTC)
- Place: Dubuque, IA
- Coordinates: 42.499847, -90.69046 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.4998&lon=-90.6905&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 34120
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC86LA040
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34120/pdf
- Page: https://openairdocs.org/ntsb/MKC86LA040

## 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 (contributing factor)
- Loss of control - on ground/water, landing - roll
  - weather condition - crosswind (contributing factor)
  - performance data - exceeded, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)

## Analysis

THE AIRCRAFT LANDED ON RUNWAY 13 BECAUSE THE N-S RUNWAY WAS COVERED WITH ICE.  THE WIND WAS FROM 220 DEGREES AT 16, GUSTS TO 24  KNOTS. THE AIRCRAFT BOUNCED TWICE DURING THE LANDING AND DRIFTED LEFT. THE AIRCRAFT ENCOUNTERED SNOW ALONG THE LEFT SIDE OF THE RUNWAY, CONTINUED OFF THE LEFT SIDE AND HIT A SNOWBANK. ACCORDING TO THE HANDBOOK FOR THE BEECH C23 THE DEMONSTRATED CROSSWIND COMPONENT IS 17 KNOTS.

## Aircraft

- Registration: [N67248](https://openairdocs.org/deregistered/N67248-2015-05-19), registration cancelled 2015-05-19, S/N M-2392, built 1983 (OpenAirDocs)
- Reported make and model: BEECH C23
- Registry model: [Beech C23](https://openairdocs.org/model/beech-c23) (registry code 1151242) (OpenAirDocs)
- Registry engine: [Lycoming 0-360-A1D](https://openairdocs.org/engine/lycoming-0-360-a1d) (registry code 41504, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: M-2392
- Airframe hours: 897
- Engines: LYCOMING O-360-A4K 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Elliott Flying Service
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 19, 1985
- Departed: MKE, MILWAUKEE, WI
- Airport: DBQ, Dubuque Municipal, runway 13, 6,498 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 286 total, 26 in this make and model, 225 as pilot in command, 30 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 220° at 16 knots, gusting 24
- Visibility: 11 statute miles
- Lowest ceiling: 12,000 ft broken
- Temperature: 30 °F, dew point 27 °F
- Altimeter: 29.00 inHg
- Observed at: DBQ

## 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 19851230066299A](https://openairdocs.org/incident/19851230066299A), Dec 30, 1985: Beech C23, Dubuque, IA, Substantial damage. Bounced during crosswind landing. Struck snowbank after drifting to side of runway. Exceeded crosswind component.

## Other investigations on N67248 (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 ATL07CA091](https://openairdocs.org/ntsb/ATL07CA091), Jun 18, 2007: Beech C-23 (N67248), Plainville, CT, substantial damage. Probable cause: The pilot's improper use of rudder and brakes on landing roll out resulting in a loss of directional control, and collapse of the main landing gear.

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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