Tuesday, January 31, 2017

Cook Smith Aviation Replica SU, N712AZ, registered to Clear Blue Marketing Inc and operated by the pilot: Accident occurred January 31, 2017 in Justin, Denton County, Texas

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

Additional Participating Entities:
Federal Aviation Administration / Flight Standards District Office; North Texas FSDO; Irving, Texas
Continental Motors; Mobile, Alabama

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

Investigation Docket - National Transportation Safety Board:https://dms.ntsb.gov/pubdms

http://registry.faa.gov/N712AZ   

National Transportation Safety Board - Aviation Accident Factual Report

Location: Justin, TX
Accident Number: CEN17LA096
Date & Time: 01/31/2017, 1500 CST
Registration: N712AZ
Aircraft: COOK Smith Aviation Replica 
Aircraft Damage: Substantial
Defining Event: Loss of engine power (total)
Injuries: 1 Serious, 1 Minor
Flight Conducted Under: Part 91: General Aviation - Personal 

On January 31, 2017, about 1500 central standard time, an experimental, amateur-built Cook Smith Aviation Replica SU airplane, N712AZ, sustained substantial damage when it struck trees and impacted terrain during a forced landing after a loss of engine power near Justin, Texas. The pilot received minor injuries and the passenger received serious injuries. The airplane was registered to Clear Blue Marketing, Inc., and was operated by the pilot under the provisions of the Title 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight, which was not operating on a flight plan. The flight departed from the Northwest Regional Airport (52F), Roanoke, Texas, about 1440 on a local flight.

The pilot reported that he departed with 10 gallons of fuel in the left fuel tank and 15 gallons of fuel in the right fuel tank. He had flown for about 15 minutes in straight and level flight when he flew a practice forced landing to a wheat field. He stated that during the recovery from the practice maneuver, he turned off the carburetor heat, applied full power, and raised the nose to a steep pitch attitude of about 35° to 40° nose up. He stated that the engine experienced a total loss of power in the climb about 200 to 500 ft above ground level. He pushed the stick full forward to maintain airspeed and he chose to land straight ahead. He stated that the engine started to "sputter" and regain power about the time that the airplane struck the trees, which resulted in substantial damage to the wings and fuselage. The pilot and passenger were able to exit the airplane. The pilot stated that he turned the fuel selector to the OFF position and disconnected the battery cable.

The 52-year-old pilot held a private pilot's certificate with airplane single-engine land and airplane single-engine sea ratings. He held a third-class medical certificate issued on January 1, 2016. The pilot reported that he had 1,054 total flight hours with 176 flight hours in the make and model of the accident airplane.

The experimental, amateur built Cook Smith Aviation Replica SU, N712AZ, serial number 30-6, was manufactured in 2008. The high-wing airplane was a two-place tandem seat airplane equipped with the 180-horsepower TMX Mattituck O-360 engine and had a maximum gross weight of 2,400 lbs. Leading edge slats were installed along the entire span of the right and left wings, which allows the airplane to be flown at a very high nose up attitude. The fuel system was a gravity feed system to the carburetor. Each wing had a 24-gallon metal fuel tank, but there was no header tank installed. The 3/8-inch diameter fuel lines went from the fuel tanks to the fuel drain located in the belly of the airplane aft of the engine firewall. Then the fuel lines were then connected to the fuel selector before being routed to the carburetor through a fuel transducer which measured the fuel flow. The airplane was not equipped with an electric fuel boost pump.

Airplane maintenance records indicated that the airplane was previously involved in a nose over accident. Maintenance was performed to bring the airplane into an airworthy condition, which was completed on November 3, 2016. At the time of the inspection, the maintenance logbooks indicated that it had 124.60 hours total time on the airframe, and the tach read 0.0 hours. The pilot reported that at the time of the accident, the engine had a total time of 145 hours and 21 hours since the last inspection. 

Figure 1 - View of the airplane wreckage at the accident site

A Federal Aviation Administration inspector examined the airplane at the accident site. He reported that the left wing had impacted the trees and remained lodged in the branches. The left-wing fuel tank was separated from the wing and was found lying on the ground. It exhibited minor impact damage. The fuel cap was off, and no fuel was found in the tank. The main airplane wreckage was located about 40 ft from the tree that was struck by the left wing. The fabric-covered right wing was found with the main wreckage, but it was broken and fractured at numerous places. The right-wing's metal fuel tank's leading edge was crushed about 12 inches, which was consistent with an impact with a tree. The fuel tank was compromised, and the fuel cap was off. The inspector reported that the carburetor bowl plug was removed, and no fuel drained from the bowl. There were no apparent fuel stains on the fabric covered wings. The propeller did not exhibit rotational damage.

The engine was shipped to the Continental Motors facility at Fairhope, Alabama, for examination and engine run. The engine was installed on an engine test stand and an engine run was conducted. The engine operated through a range of engine RPMs between 1,200 to 2,700 RPMs, and at idle. The engine was not equipped with an engine driven fuel pump.

At 1454, the surface weather observation at the Fort Worth Alliance Airport (AFW), Fort Worth, Texas, located 6 nautical miles southwest of the accident site, was: wind 190 at 6 kts; 10 miles visibility; sky condition few clouds at 25,000 ft; temperature 26° C; dew point -4° C; altimeter 29.88 inches of mercury.

The Smith Aviation Replica SU airplane kit is no longer in production; however, Backcountry Super Cub manufactures a similar airplane kit. The owner of Backcountry Super Cub reported that all their engines are equipped with engine driven fuel pumps, and he recommends that aircraft builders install electric fuel boost pumps to ensure adequate fuel flow to engines that demand more fuel at high power settings. He reported that the slats on the leading edge of the wing allow for a very high nose up attitude, about 40-50 degrees up, which could possibly cause fuel starvation unless there is adequate fuel head pressure to deliver the fuel to the carburetor. 

Pilot Information

Certificate: Private
Age: 52, Male
Airplane Rating(s): Single-engine Land; Single-engine Sea
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: 4-point
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 None
Last FAA Medical Exam: 01/14/2016
Occupational Pilot:No
Last Flight Review or Equivalent:
Flight Time: 1054 hours (Total, all aircraft), 176 hours (Total, this make and model), 38 hours (Last 90 days, all aircraft), 12 hours (Last 30 days, all aircraft), 1 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Manufacturer: COOK
Registration: N712AZ
Model/Series: Smith Aviation Replica
Aircraft Category: Airplane
Year of Manufacture: 2008
Amateur Built: Yes
Airworthiness Certificate: Experimental
Serial Number: 04076
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 11/03/2016, Annual
Certified Max Gross Wt.: 2300 lbs
Time Since Last Inspection: 21 Hours
Engines: 1 Reciprocating
Airframe Total Time: 124 Hours as of last inspection
Engine Manufacturer: TMX Mattituck
ELT: Installed, activated, did not aid in locating accident
Engine Model/Series: O-360
Registered Owner: CLEAR BLUE MARKETING INC
Rated Power: 180 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: AFW, 722 ft msl
Observation Time: 1454 CST
Distance from Accident Site: 6 Nautical Miles
Direction from Accident Site: 200°
Lowest Cloud Condition: Few / 25000 ft agl
Temperature/Dew Point: 26°C / -4°C
Lowest Ceiling: None
Visibility:  10 Miles
Wind Speed/Gusts, Direction: 16 knots, 190°
Visibility (RVR):
Altimeter Setting: 29.88 inches Hg
Visibility (RVV):
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Roanoke, TX (52F)
Type of Flight Plan Filed: None
Destination: Roanoke, TX (52F)
Type of Clearance: VFR
Departure Time: 1440 CST
Type of Airspace:

Wreckage and Impact Information

Crew Injuries: 1 Minor
Aircraft Damage: Substantial
Passenger Injuries: 1 Serious
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Serious, 1 Minor

Latitude, Longitude:  33.084722, -97.295833 (est)

NTSB Identification: CEN17LA096
14 CFR Part 91: General Aviation
Accident occurred Tuesday, January 31, 2017 in Justin, TX
Aircraft: COOK Smith Aviation Repli, registration: N712AZ
Injuries: 1 Serious, 1 Minor.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On January 31, 2017, about 1458 central standard time, an experimental, amateur-built Cook Smith Aviation Replica SU, N712AZ, sustained substantial damage when it struck trees during a forced landing after a loss of engine power near Justin, Texas. The pilot received minor injuries and the passenger received serious injuries. The airplane was registered to Clear Blue Marketing, Inc., and was operated by the pilot under the provisions of the 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight, which was not operating on a flight plan. The flight departed from the Northwest Regional Airport (52F), Roanoke, Texas, about 1440 on a local flight.

The pilot reported that he departed with 10 gallons of fuel in the left fuel tank and 15 gallons of fuel in the right fuel tank. He had flown for about 15 minutes in straight and level flight when he flew a practice forced landing to a wheat field. He stated that during the recovery from the practice maneuver, the engine experienced a total loss of power in the climb about 500 ft above ground level. He pushed the stick full forward to maintain airspeed and he chose to land straight ahead. The airplane struck trees during the forced landing, which resulted in substantial damage to the wings and fuselage. He stated that the engine started to "sputter" and regain power about the time that the airplane struck the trees.

At 1454, the surface weather observation at the Fort Worth Alliance Airport (AFW), Fort Worth, Texas, located 6 nautical miles southwest of the accident site, was: wind 190 at 6 knots; 10 miles visibility; sky condition few clouds at 25,000 ft; temperature 26 degrees C; dew point -4 degrees C; altimeter 29.88 inches of mercury. 



Two people escaped serious injury on Tuesday afternoon after crashing their small plane in southwest Denton County.

Argyle Fire District crews were dispatched to the 7700 block of Mulkey near the Northwest ISD Outdoor Learning Center in Northlake at 3:30 p.m. after receiving reports of a plane crash.

Argyle Fire District and Northlake Police Department arrived on the scene to find a small private plane had crashed with major damage.

State Trooper Lonny Haschel with the Department of Public Safety told NBC 5 that the pilot was not injured, and the passenger sustained minor injuries. No other injuries were reported.

The pilot lost power of the aircraft, glided into some trees, shearing off the wings before coming to a rest on the ground, Haschel said.

Responding agencies included the Argyle Fire District, Justin Fire Department, Northlake Police Department, Texas Department of Public Safety (DPS), Justin Police Department, Denton County Sheriffs Office, Denton County Constable Precinct 4 and the FAA.

Source:  http://www.crosstimbersgazette.com








DENTON COUNTY  – A small plane crashed in Denton County Tuesday afternoon in the Northlake area, north of Texas Motor Speedway in the 7700 block of Mulkey Lane.

The plane crashed into trees outside Northwest ISD’s Outdoor Learning Center.

The pilot and passenger are both okay and walking around.

No one on the ground was injured either.  There were no students on site when the plane went down.

It’s unclear what caused the plane to crash.

Source:   http://dfw.cbslocal.com



Authorities say a small plane has crashed in Denton County.

Lynn Lunsford with the Federal Aviation Administration confirms a single-engine aircraft carrying two people went down shortly before 3:30 p.m. Tuesday.

It happened near the Northwest ISD Outdoor Learning Center in Northlake, located in the 7700 block of Mulkey Lane, according to Denton County Emergency Manager Jody Gonzales.

School district officials say no students were on campus at the time.

State Trooper Lonny Haschel with the Department of Public Safety said the pilot is not injured, but the passenger sustained minor injuries. No other injuries have been reported.

The pilot lost power of the aircraft, glided into some trees, shearing off the wings before coming to a rest on the ground, Haschel said.

FAA investigators are on their way to the crash site and the National Transportation Safety Board has been notified.

Story and video:  http://www.nbcdfw.com

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