Sunday, September 01, 2019

System / Component Malfunction / Failure (non-power): Boeing A75N1 (PT17), N64604; accident occurred August 31, 2018 at Kenosha Regional Airport (KENW), Wisconsin

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

Additional Participating Entity:

Federal Aviation Administration / Flight Standards District Office; Milwaukee, Wisconsin

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Kenosha, WI
Accident Number: CEN18LA360
Date & Time: 08/30/2018, 1900 CDT
Registration: N64604
Aircraft: Stearman A75N1(PT17)
Aircraft Damage: Substantial
Defining Event: Sys/Comp malf/fail (non-power)
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal 

On August 30, 2018, about 1900 central daylight time, a Stearman A75N1 (PT17) airplane, sustained substantial damage when nosed over during the landing roll at the Kenosha Regional Airport (ENW), Kenosha, Wisconsin. The airline transport pilot, who was the sole occupant, was not injured, and the airplane sustained substantial damage to the rudder. The airplane was registered to and operated by a private individual as a Title 14 Code of Federal Regulations Part 91 personal flight. Visual meteorological conditions prevailed at the time of the accident, and a flight plan was not filed. The local flight departed ENW about 1830.

According to the pilot, he had performed three touch and go maneuvers without the use of any braking. On the fourth and last planned landing roll out about 30 mph, the airplane experienced an excessive tail wheel shimmy due to a left brake assembly issue. About 25 mph, the airplane nosed over and came to rest inverted.

Postaccident examination of the airplane by a Federal Aviation Administration inspector revealed the left main wheel/brake assembly was locked, and the wheel/tire could not be rotated. Partial disassembly of the wheel/brake assembly revealed a failed retaining bolt for the brake backing plate, and a crack in the backing plate.

The pilot reported the specified brake lining to drum clearance was .008/.010 inches. The most recent annual inspection was completed on September 1, 2017, about 20 hours prior to the accident.

Pilot Information

Certificate: Airline Transport; Flight Instructor; Flight Engineer
Age: 58, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Rear
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: 06/01/2018
Occupational Pilot: No
Last Flight Review or Equivalent: 05/08/2018
Flight Time:   (Estimated) 22000 hours (Total, all aircraft), 100 hours (Total, this make and model), 16000 hours (Pilot In Command, all aircraft), 220 hours (Last 90 days, all aircraft), 80 hours (Last 30 days, all aircraft), 0.5 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Stearman
Registration: N64604
Model/Series: A75N1(PT17) 3
Aircraft Category: Airplane
Year of Manufacture: 1942
Amateur Built: No
Airworthiness Certificate: Aerobatic
Serial Number: 75-6811
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 09/01/2017, Annual
Certified Max Gross Wt.: 2950 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 5561 Hours at time of accident
Engine Manufacturer: Continental
ELT: C91 installed, activated, did not aid in locating accident
Engine Model/Series: W670-6A
Registered Owner: Sievers Raymond
Rated Power: 220 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: ENW, 742 ft msl
Distance from Accident Site: 5 Nautical Miles
Observation Time: 1800 CDT
Direction from Accident Site: 170°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 7 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 70°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.98 inches Hg
Temperature/Dew Point: 24°C / 10°C
Precipitation and Obscuration: No Precipitation
Departure Point: Kenosha, WI (ENW)
Type of Flight Plan Filed: None
Destination: Kenosha, WI (ENW)
Type of Clearance: VFR
Departure Time: 1830 CDT
Type of Airspace: Class D 

Airport Information

Airport: Kenosha Regional Airport (ENW)
Runway Surface Type: Asphalt
Airport Elevation: 742 ft
Runway Surface Condition: Dry
Runway Used: 07R
IFR Approach: None
Runway Length/Width: 3302 ft / 75 ft
VFR Approach/Landing: Traffic Pattern 

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude:  42.597222, -87.929444 (est)

1 comment:

  1. When there is a mechanical issue, anyone can wreck. It wasn't because the pilot lacked experience.