# NTSB DEN90FA166: Cessna 208A, N105YV, Ruidoso, NM, July 27, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: July 27, 1990, 10:30 local (16:30 UTC)
- Place: Ruidoso, NM
- Coordinates: 33.350376, -105.679664 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.3504&lon=-105.6797&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report December 30, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 17842
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN90FA166
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17842/pdf
- Page: https://openairdocs.org/ntsb/DEN90FA166

## Probable cause

ENGINE FAILURE DUE TO FAILURE OF THE GAS PRODUCER AND POWER TURBINE ASSEMBLIES. A FACTOR IN THE ACCIDENT WAS THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, descent - normal
  - turboshaft engine,gas generator turbine - failure,total (cause)
  - turboshaft engine,free(power) turbine - failure,total (cause)
  - compressor assembly,spacer - failure,total
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - terrain condition - roadway/highway (contributing factor)
  - object - tree(s)

## Analysis

WHEN POWER WAS REDUCED TO BEGIN INITIAL DESCENT FOR APPROACH AND LANDING THE ENGINE LOST POWER AND THE PILOT PERFORMED A FORCED LANDING ON A ROAD. THE ROAD HAD A 4% UPGRADE AND CURVED TO THE RIGHT. DURING THE ROLLOUT THE OUTBOARD END OF THE RIGHT WING STRUCK A TREE DAMAGING THE WING CARRY THROUGH SPAR. METALLURGICAL TESTING REVEALED THE CAUSE OF THE POWER LOSS TO BE FAILURE OF THE GAS PRODUCER TURBINE.

## Aircraft

- Registration: N105YV (not matched to a registry record)
- Reported make and model: CESSNA 208A
- Category: Airplane
- Serial number: 20800105
- Airframe hours: 6621
- Engines: P&W PT6A-114 600 horsepower turbo prop
- Damage: Substantial damage
- Flight: Part 135
- Operator: Mesa Airlines
- Last inspection: Unknown, July 21, 1990, 48 hours before
- Departed: ELP, EL PASO, TX
- Destination: SRR
- Flight plan: Company VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 24; airline transport, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: helicopter; medical: class 1, valid medical--no waivers/lim.; flight hours: 1,697 total, 491 in this make and model, 1,572 as pilot in command, 268 in the last 90 days, 98 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: variable at 8 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F
- Observed at: SRR, 3 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 19900727028819A](https://openairdocs.org/incident/19900727028819A), Jul 27, 1990: Cessna 208A, Ruidoso, NM, Substantial damage. Lost engine torque and high TIT. Landed on a road. Left wing hit a tree. Compressor and tubine blades overstressed

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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