# NTSB MKC86LA041: Beech M35, N9730R, Council Bluffs, IA, December 27, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 27, 1985, 14:45 local (20:45 UTC)
- Place: Council Bluffs, IA
- Coordinates: 41.239028, -95.849678 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.2390&lon=-95.8497&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 34121
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC86LA041
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34121/pdf
- Page: https://openairdocs.org/ntsb/MKC86LA041

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, climb - to cruise
  - fluid,fuel - contamination (contributing factor)
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - fluid,fuel - water (contributing factor)
  - aircraft preflight - inadequate, pilot in command (cause)
- Forced landing, climb
- In flight collision with terrain/water, landing - flare/touchdown
  - airport facilities,runway/landing area condition - inadequate (contributing factor)
  - wheels up landing - intentional, pilot in command (contributing factor)
  - terrain condition - rough/uneven (contributing factor)

## Analysis

THE ACFT MADE A GEAR-UP FORCED LNDG OFF THE ARPT AFTER A LOSS OF POWER DURING A BUSINESS FLT. THE ACFT HAD ONLY BEEN AIRBORNE FOR ABOUT 15 MINUTES. POST ACCIDENT INVESTIGATION DISCOVERED THAT THE ACFT FUEL WAS CONTAMINATED WITH WATER.

## Aircraft

- Registration: [N9730R](https://openairdocs.org/deregistered/N9730R-2005-06-13), registration cancelled 2005-06-13, S/N D-6204, built 1959 (OpenAirDocs)
- Reported make and model: BEECH M35
- Registry model: [Beech M35](https://openairdocs.org/model/beech-m35) (registry code 1151526) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: D-6204
- Airframe hours: 3100
- Engines: CONTINENTAL I0-470-C 260 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Baron Av. Serv. Inc.
- Registered owner: Baron Aviation Services Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 1, 1985, 11 hours before
- Departed: OMA, OMAHA, NE
- Destination: VIH, VICHY, MO

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; airline transport, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 2,474 total, 57 in this make and model, 56 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 17 knots
- Visibility: 10 statute miles
- Lowest ceiling: 4,000 ft broken
- Temperature: 25 °F, dew point 10 °F
- Altimeter: 30.00 inHg
- Observed at: OMA, 10 nm away

## Other investigations on N9730R (2)

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 NYC04LA027](https://openairdocs.org/ntsb/NYC04LA027), Nov 7, 2003: Beech M35 (N9730R), Bellefonte, PA, substantial damage. Probable cause: A total loss of engine power during approach for undetermined reasons.
- [NTSB MKC66F0574](https://openairdocs.org/ntsb/MKC66F0574), May 22, 1966: Beech M35 (N9730R), St. Joseph, MO, 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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