Saturday, February 10, 2018

Aerotechnik L-13 SEH Vivat, N8230S: Accident occurred August 17, 2017 near Moses Lake Municipal Airport (W20), Grant County, Washington

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Moses Lake, Washington

Aviation Accident Final Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Moses Lake, WA
Accident Number: GAA17CA494
Date & Time: 08/17/2017, 1540 PDT
Registration: N8230S
Aircraft Damage: Substantial
Defining Event: Loss of control in flight
Injuries: 1 None
Flight Conducted Under:  Part 91: General Aviation - Personal 

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot's improper takeoff configuration due to his failure to follow the pretakeoff checklist, which resulted in a loss of lift and collision with obstacles. 



Personnel issues
Aircraft control - Pilot (Cause)
Use of checklist - Pilot (Cause)

Factual Information

History of Flight

Loss of lift

Emergency descent
Off-field or emergency landing

Collision with terr/obj (non-CFIT)

According to the powered-glider pilot, during takeoff he noticed a slower than usual acceleration, but continued the departure.

He reported that, "after lift-off the glider exhibited a poor climb rate although the engine was running smooth."

Moments later, the glider stopped climbing, then descended and struck the roof of a building located about 800ft southwest of the departure end of the runway. The glider came to rest upright, after colliding with another structure, and was consumed by a post-crash fire.

The pilot recalled that during the startup sequence, he was, "anxious to get back to my home base" and that he had not used the checklist.

The pilot reported that he had taken off with the propeller in the cruise setting and the wing spoilers deployed.

The pilot reported that there were no preaccident mechanical malfunctions or failures with the glider that would have precluded normal operation. 

Pilot Information

Certificate: Private
Age: 69
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): Glider
Restraint Used: 4-point
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 With Waivers/Limitations
Last FAA Medical Exam: 12/21/2015
Occupational Pilot:
Last Flight Review or Equivalent: 07/02/2017
Flight Time:   (Estimated) 2867 hours (Total, all aircraft), 0.1 hours (Total, this make and model), 38 hours (Last 90 days, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Manufacturer: AEROTECHNIK
Registration: N8230S
Model/Series: L 13 SEH VIVAT SEH
Aircraft Category: Airplane
Year of Manufacture: 1993
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 930504
Landing Gear Type: Retractable - Tailwheel
Seats: 2
Date/Type of Last Inspection: 08/24/2016, Annual
Certified Max Gross Wt.: 1588 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 401.5 Hours as of last inspection
Engine Manufacturer: AEROTECNIK
ELT: C91  installed, not activated
Engine Model/Series: MIKRON III
Registered Owner: On file
Rated Power: 65 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: KMWH, 1196 ft msl
Observation Time: 2152 UTC
Distance from Accident Site: 5 Nautical Miles
Direction from Accident Site: 320°
Lowest Cloud Condition: Clear
Temperature/Dew Point: 29°C / 7°C
Lowest Ceiling: None
Visibility:  10 Miles
Wind Speed/Gusts, Direction: 7 knots, 210°
Visibility (RVR):
Altimeter Setting: 30.03 inches Hg
Visibility (RVV):
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Moses Lake, WA (WA40)
Type of Flight Plan Filed: None
Destination: Wenatchee, WA (EAT)
Type of Clearance: None
Departure Time: 1500 PST
Type of Airspace: Class G 

Airport Information

Airport: MOSES LAKE MUNI (W20)
Runway Surface Type: Asphalt
Airport Elevation: 1205 ft
Runway Surface Condition: Dry
Runway Used: 16
IFR Approach: None
Runway Length/Width: 2500 ft / 50 ft
VFR Approach/Landing: Forced Landing 

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: On-Ground
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude:  47.141944, -119.237778 (est)

No comments:

Post a Comment