# NTSB CHI85FEP01: Beech 35-C33, N6144V, Middleton, WI, May 23, 1985

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: May 23, 1985, 08:45 local (13:45 UTC)
- Place: Middleton, WI
- Coordinates: 43.100765, -89.499549 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.1008&lon=-89.4995&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12885
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85FEP01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12885/pdf
- Page: https://openairdocs.org/ntsb/CHI85FEP01

## Sequence of events

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

- Miscellaneous/other, takeoff
  - lubricating system - other
  - aircraft service - improper, pilot in command (cause)
  - aircraft preflight - inadequate
  - fluid,oil - leak (contributing factor)
- On ground/water encounter with terrain/water, takeoff
  - aborted takeoff
  - terrain condition - ditch (contributing factor)
  - terrain condition - dirt bank/rising embankment (contributing factor)
- Nose over, takeoff

## Analysis

AT LIFT-OFF DURING THE DEPARTURE, THE PLT NOTICED OIL SPRAY ON THE WINDSHIELD. HE INITIATED AN ABORTED TAKEOFF BY RETARDING THE THROTTLE, THEN REALIZED THERE WAS INSUFFICIENT RWY REMAINING, SO HE APPLIED FULL THROTTLE AGAIN. HOWEVER, THE ENG DID NOT RESPOND TO THE RAPID THROTTLE ADVANCEMENT. SUBSEQUENTLY, THE ACFT WENT OFF THE RWY NEAR THE DEPARTURE END, HIT A DIRT BANK ADJACENT TO A DITCH & NOSED OVER. ARPT PERSONNEL REPORTED THAT THE PLT HAD SERVICED THE ACFT WITH OIL, BUT HAD FORGOTTEN TO REINSTALL THE OIL FILLER CAP.

## Aircraft

- Registration: [N6144V](https://openairdocs.org/deregistered/N6144V-1985-12-11), registration cancelled 1985-12-11, S/N CD-868 (OpenAirDocs)
- Reported make and model: BEECH 35-C33
- Registry model: [Beech 35-C33](https://openairdocs.org/model/beech-35-c33) (registry code 1151408) (OpenAirDocs)
- Category: Airplane
- Serial number: CD-868
- Airframe hours: 36344
- Engines: CONTINENTAL IO-470-K 225 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Timothy M. Parsons
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, September 10, 1984, 6,489 hours before
- Destination: DPA, WEST CHICAGO, IL
- Airport: C29, Morey, runway 31, 2,975 × 25 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 2,762 total, 2,046 in this make and model, 2,598 as pilot in command, 59 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 6 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point 48 °F
- Altimeter: 30.00 inHg
- Observed at: MSN, 9 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 19850523019889A](https://openairdocs.org/incident/19850523019889A), May 23, 1985: Beech 35C33, Middleton, WI, Substantial damage. Oil spray on windshield, aborted takeoff. Ran off end of runway and flipped over. Oil filler cap not secured.

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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