Sunday, July 14, 2019

Loss of Engine Power (Total): Rockwell Commander 112TC, N4594W; accident occurred June 14, 2018 near Cheyenne Regional Airport (KCYS), Laramie County, Wyoming


The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entity:

Federal Aviation Administration / Flight Standards District Office; Denver, Colorado

Aviation Accident Factual Report - National Transportation Safety Board:https://app.ntsb.gov/pdf


http://registry.faa.gov/N4594W



Location: Cheyenne, WY
Accident Number: CEN18LA225
Date & Time: 06/14/2018, 1445 MDT
Registration: N4954W
Aircraft: Rockwell International 112TC
Aircraft Damage: Substantial
Defining Event: Loss of engine power (total)
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Personal 

On June 14, 2018, about 1445 mountain daylight time, a Rockwell International 112TC airplane, N4954W, was substantially damaged during a forced landing near Cheyenne Regional Airport/Jerry Olson Field (KCYS), Cheyenne, Wyoming. The pilot and passenger were not injured. The personal flight was conducted under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and no Federal Aviation Administration (FAA) flight plan was filed for the flight. The airplane departed Skyview Airpark (WY05), Cheyenne, Wyoming, and was en route to KCYS at the time of the accident.

According to the written statement provided by the pilot, he preflighted the airplane and confirmed about ¼ tank of fuel for each wing fuel tank, using the indication on the fuel gauges and knowledge from fuel burn and the previous day's flight. He did not have a fuel stick calibrated for the airplane. No contamination was noted in the fuel sump samples. The engine started and ran during the engine runup without issues. The entire flight was conducted with the fuel selector valve selected to BOTH.

About 5 miles from KCYS, the engine rpms dropped, and the pilot adjusted the mixture and throttle setting which resulted in an increase in engine power. About a minute later, the engine rpms decreased again, and the pilot went through the checklist to restore power and requested to land straight in at KCYS. The power increased for 10 seconds and then went to idle. During a forced landing to the field, just east of the approach end to runway 27, the outboard portion of the right wing impacted the ground and separated, and the empennage and fuselage were bent and wrinkled.

Measurable fuel was documented in the left-wing fuel tank and trace fuel was documented in the fuel lines for the right-wing fuel tank. The right-wing fuel line was impact separated and the right-wing fuel tank was empty. An examination of the airframe, engine, and fuel system, conducted by the National Transportation Safety Board, revealed no preaccident mechanical anomalies that would have precluded normal operations. 



Pilot Information

Certificate: Airline Transport; Flight Instructor
Age: 44, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): Airplane Multi-engine; Airplane Single-engine; Instrument Airplane
Toxicology Performed: No
Medical Certification: Class 1 With Waivers/Limitations
Last FAA Medical Exam: 04/20/2018
Occupational Pilot: Yes
Last Flight Review or Equivalent: 03/29/2018
Flight Time:   7260 hours (Total, all aircraft), 6.5 hours (Total, this make and model), 3745 hours (Pilot In Command, all aircraft), 70 hours (Last 90 days, all aircraft), 26 hours (Last 30 days, all aircraft), 7 hours (Last 24 hours, all aircraft) 



Aircraft and Owner/Operator Information

Aircraft Make: Rockwell International
Registration: N4954W
Model/Series: 112TC
Aircraft Category: Airplane
Year of Manufacture: 1976
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 13084
Landing Gear Type: Retractable - Tricycle
Seats: 4
Date/Type of Last Inspection: 06/07/2018, Annual
Certified Max Gross Wt.: 2850 lbs
Time Since Last Inspection: 21 Hours
Engines: 1 Reciprocating
Airframe Total Time: 2228.7 Hours as of last inspection
Engine Manufacturer: Lycoming
ELT: C126 installed, activated, did not aid in locating accident
Engine Model/Series: TO-360-C1A6D
Registered Owner: Chris Russell
Rated Power: 210 hp
Operator: On file
Operating Certificate(s) Held: None 



Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KCYS, 6159 ft msl
Distance from Accident Site: 1 Nautical Miles
Observation Time: 1453 MDT
Direction from Accident Site: 270°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 19 knots / 25 knots
Turbulence Type Forecast/Actual: / None
Wind Direction: 290°
Turbulence Severity Forecast/Actual: / N/A
Altimeter Setting: 29.93 inches Hg
Temperature/Dew Point: 29°C / -3°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Cheyenne, WY (WY05)
Type of Flight Plan Filed: None
Destination: Cheyenne, WY (KCYS)
Type of Clearance: None
Departure Time: 1415 MST
Type of Airspace: Class D



Airport Information

Airport: Cheyenne Regional Airport (KCYS)
Runway Surface Type: N/A
Airport Elevation: 6159 ft
Runway Surface Condition: Dry; Rough; Vegetation
Runway Used: 27
IFR Approach: None
Runway Length/Width: 9270 ft / 150 ft
VFR Approach/Landing: Forced Landing 

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 1 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 41.154444, -104.785000 (est)

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