# NTSB MKC85LA109: Beech 35-B33, N3EM, Calamus, IA, May 21, 1985

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: May 21, 1985, 12:30 local (17:30 UTC)
- Place: Calamus, IA
- Coordinates: 41.820503, -90.749839 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.8205&lon=-90.7498&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33948
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC85LA109
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33948/pdf
- Page: https://openairdocs.org/ntsb/MKC85LA109

## Sequence of events

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

- Overrun, landing - roll
  - throttle/power lever - binding(mechanical) (contributing factor)
  - operation with known deficiencies in equipment - performed, pilot in command (contributing factor)
  - planning/decision - improper, pilot in command (contributing factor)
  - wrong runway - selected, pilot in command (contributing factor)
  - terrain condition - high obstruction(s) (contributing factor)
  - airport facilities,runway/landing area condition - downhill (contributing factor)
  - distance - misjudged, pilot in command (cause)
  - airspeed - misjudged, pilot in command (cause)
  - proper touchdown point - not attained
  - go-around - not performed, pilot in command (cause)
  - throttle/power lever - movement restricted (contributing factor)
  - throttle/power control - improper use of, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch (contributing factor)
  - terrain condition - dirt bank/rising embankment (contributing factor)

## Analysis

DURING ARRIVAL, THE PLT LANDED ON A 1700 FT TURF RWY WHICH SLOPED DOWNHILL TO THE NORTH & HAD A 30 FT POWER LINE LOCATED NEAR THE APCH END. REPORTEDLY, THE ACFT TOUCHED DOWN 572 FT FROM THE DEPARTURE END, THEN CONTINUED OFF THE RWY & HIT A DIRT BANK NEXT TO A DRAINAGE DITCH. THE PLT REPORTED THAT THE THROTTLE WAS BINDING & THAT IT HUNG UP MOMENTARILY WHEN HE WAS RETARDING IT DURING THE LANDING. HE WAS AWARE OF THE THROTTLE DISCREPANCY BEFORE THE FLIGHT. THE U.S. ARPT/FACILITY DIRECTORY LISTING FOR THIS ARPT STATED 'RWY 17-35 LAND ONLY TO THE SOUTH.'

## Aircraft

- Registration: [N3EM](https://openairdocs.org/deregistered/N3EM-1988-04-06), registration cancelled 1988-04-06, S/N CD508 (OpenAirDocs)
- Reported make and model: BEECH 35-B33
- Registry model: [Beech 35-B33](https://openairdocs.org/model/beech-35-b33) (registry code 1151406) (OpenAirDocs)
- Category: Airplane
- Serial number: CD-508
- Airframe hours: 3816
- Engines: CONTINENTAL IO-470 225 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Edward L. Soenke
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 27, 1985
- Departed: 6C4, HAMPTON, IA
- Airport: 5C3, Eastvold, runway 36, 1,700 × 100 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; private; airplane ratings: single-engine land, single-engine sea; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 1,108 total, 1,108 in this make and model, 916 as pilot in command, 46 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 20° at 14 knots, gusting 25
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 75 °F
- Observed at: CID

## 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 19850521018919A](https://openairdocs.org/incident/19850521018919A), May 21, 1985: Beech 35B33, Calamus, IA, Substantial damage. Landed long and ran off runway end into dirt bank. Facility directory says land only to south due to powerlines

## Other investigations on N3EM (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 MKC78DCD01](https://openairdocs.org/ntsb/MKC78DCD01), Oct 5, 1977: Beech B33 (N3EM), Des Moines, IA, substantial damage

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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