Tuesday, May 28, 2019

Loss of Engine Power (Total): Beech V35 Bonanza, N228Q; accident occurred July 17, 2018 in Katy, 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; Houston, Texas
Continental Motors Inc.; 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


Location: Katy, TX
Accident Number: CEN18LA276
Date & Time: 07/17/2018, 0830 CDT
Registration: N228Q
Aircraft: Beech V35
Aircraft Damage: Substantial
Defining Event: Loss of engine power (total)
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal 

On July 17, 2018, about 0830 central daylight time, a Beech V35 airplane, N228Q, was substantially damaged during a forced landing following a loss of engine power near Katy, Texas. The pilot was not injured. The airplane was registered to Pivot Group LLC and operated by the pilot as a Title 14 Code of Federal Regulations Part 91 personal flight. Day visual meteorological conditions prevailed. The flight was not operated on a flight plan. The flight originated from the Fair Weather Field Airport (TX42), Monaville, Texas, about 0820 and was destined for the West Houston Airport (IWS), Houston, Texas.

The pilot reported that "a sudden and severe noise and vibration" and "a brief stream of gray smoke from under the right side of the [engine] cowling" preceded a loss of engine power as he approached the destination airport. He subsequently executed a forced landing to a residential development under construction. The airplane "bounced and skidded" before coming to rest upright. The airplane sustained substantial damage to the fuselage and right wing.

A postrecovery engine examination was conducted under oversight of the National Transportation Safety Board (NTSB) investigator-in-charge. A visual examination revealed two holes in the top of the crankcase near the No. 3 and No. 4 cylinders. The crankcase appeared to be otherwise intact. A teardown examination determined that the No. 4 connecting rod had separated from crankshaft journal. The connecting rod remained attached to the piston. The end of the connecting rod common to the crankshaft was deformed consistent with secondary mechanical damage. The No. 4 crankshaft journal was discolored consistent with oil starvation. The No. 4 piston was wedged in the cylinder and portions of the piston skirt had separated. The oil sump contained foreign debris that appeared to be a paper-based shop towel. The oil pickup screen was obstructed by similar debris. Approximately 7 quarts of oil were recovered from the sump in addition to the debris. At the time of the examination, the hour (Hobbs) meter and tachometer indicated 1,414.3 hours and 5,959.54 hours, respectively.

The debris recovered from the oil sump and the pickup screen was forwarded to the NTSB materials lab. Microscopic examination revealed that the debris consisted of a fibrous material with the appearance of a textured paper product similar to paper towels. A sample was washed with acetone to remove the engine oil and analyzed using a spectrometer. The cleaned sample displayed a spectrum with a strong match to cellulose, which is found in natural plant fibers such as cotton and wood. Paper products are manufactured with cellulosic material.

A review of the airplane maintenance records revealed that the most recent annual inspection was completed on September 22, 2017, at 5,815.4 hours tachometer time. On June 6, 2018, the alternator and alternator drive gear were replaced. The corresponding hour meter and tachometer times were 1,390.3 and 5,935.7 hours, respectively. On July 16, 2018, the starter and starter adapter were replaced. The corresponding hour meter and tachometer times were 5,959.33 hours and 1,414.0 hours, respectively. The records contained no subsequent entries. 

Pilot Information

Certificate: Private
Age: 56, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-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: 04/11/2018
Occupational Pilot: No
Last Flight Review or Equivalent: 07/02/2018
Flight Time:  441 hours (Total, all aircraft), 149 hours (Total, this make and model), 406 hours (Pilot In Command, all aircraft), 29 hours (Last 90 days, all aircraft), 5 hours (Last 30 days, all aircraft), 1 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: Beech
Registration: N228Q
Model/Series: V35
Aircraft Category: Airplane
Year of Manufacture: 1966
Amateur Built: No
Airworthiness Certificate: Utility
Serial Number: D-8135
Landing Gear Type: Retractable - Tricycle
Seats: 4
Date/Type of Last Inspection: 09/22/2017, Annual
Certified Max Gross Wt.: 3400 lbs
Time Since Last Inspection: 140 Hours
Engines: 1 Reciprocating
Airframe Total Time: 5959 Hours at time of accident
Engine Manufacturer:Continental 
ELT: C91  installed, activated, did not aid in locating accident
Engine Model/Series: IO-520-BA
Registered Owner: Pivot Group Llc
Rated Power: 285 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: TME, 166 ft msl
Distance from Accident Site: 7 Nautical Miles
Observation Time: 0835 CDT
Direction from Accident Site: 231°
Lowest Cloud Condition: Scattered / 600 ft agl
Visibility:  5 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 4 knots /
Turbulence Type Forecast/Actual: /
Wind Direction: 250°
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 30.1 inches Hg
Temperature/Dew Point: 26°C / 26°C
Precipitation and Obscuration: Mist; No Precipitation
Departure Point: Monaville, TX (TX42)
Type of Flight Plan Filed: None
Destination: Houston, TX (IWS)
Type of Clearance: None
Departure Time: 0820 CDT
Type of Airspace: Class G

Airport Information

Airport: West Houston (IWS)
Runway Surface Type: N/A
Airport Elevation: 111 ft
Runway Surface Condition: 
Runway Used: N/A
IFR Approach: None
Runway Length/Width:
VFR Approach/Landing: Forced Landing

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: 9.868056, -95.795000 (est)

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