# NTSB LAX84LA162: Beech K35, N9510R, Flagstaff, AZ, January 20, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 20, 1984, 14:50 local (21:50 UTC)
- Place: Flagstaff, AZ
- Coordinates: 35.229076, -111.720626 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.2291&lon=-111.7206&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24158
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA162
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24158/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA162

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, cruise - normal
  - engine assembly,cylinder - separation (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - hidden obstruction(s)
  - terrain condition - snow covered
- Nose gear collapsed, landing - roll

## Analysis

CRUISING AT 10,500 FT THE NUMBER 5 CYLINDER SEPARATED FROM THE ENGINE ASS'Y CAUSING THE LOSS OF POWER. DURING THE FORCED LDG ROLL THE ACFT COLLIDED WITH A SNOW COVERED LOG COLLAPSING THE NOSE GEAR. THE ENGINE WAS OVERHAULED IN 1980. 1,239 HRS OF OPERATION HAD BEEN RECORDED SINCE THE OVERHAUL.

## Aircraft

- Registration: [N9510R](https://openairdocs.org/aircraft/N9510R), registered now, S/N D-6060, built 1959 (OpenAirDocs)
- Reported make and model: BEECH K35
- Registry model: [Beech K35](https://openairdocs.org/model/beech-k35) (registry code 1151524) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: D6060
- Airframe hours: 4565
- Engines: CONTINENTAL IO-470-C 250 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Eugene S Harris, doing business as Harris & Assoc Inc
- Registered owner: Harris And Associates Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 2, 1983, 76 hours before
- Departed: SDL, SCOTTSDALE, AZ
- Destination: SDL, SCOTTSDALE, CA
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; commercial; airplane ratings: single-engine land; instrument ratings: helicopter; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 1,730 total, 96 in this make and model, 1,500 as pilot in command, 55 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 100 statute miles
- Lowest ceiling: none
- Temperature: 30 °F, dew point -0 °F

## 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 19840120001899A](https://openairdocs.org/incident/19840120001899A), Jan 20, 1984: Beech K35, Flagstaff, AZ, Substantial damage. Rough engine then power loss. Struck a log landing in a field. Nr 5 cylinder jug had broken from the engine case.

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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