Saturday, June 01, 2019

System / Components Malfunction / Failure (Non-Power): Cessna 120, N2496N; accident occurred December 15, 2018 at Beaumont Hotel Airport (07S), Butler County, Kansas

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

 Additional Participating Entity:

Federal Aviation Administration / Flight Standards District Office; Wichita, Kansas

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Beaumont, KS
Accident Number: CEN19LA046
Date & Time: 12/15/2018, 0830 CST
Registration: N2496N
Aircraft: Cessna 120
Aircraft Damage: Substantial
Defining Event: Sys/Comp malf/fail (non-power)
Injuries: 2 None
Flight Conducted Under:  Part 91: General Aviation - Personal 

On December 15, 2018, about 0830 central standard time, a Cessna 120 airplane, N2496N, nosed over during a landing at the Beaumont Hotel Airport (07S), near Beaumont, Kansas. The private pilot and his passenger were uninjured. The airplane sustained substantial wing and empennage damage. The airplane was registered to and operated by the pilot as a Title 14 Code of Federal Regulations Part 91 personal flight. Day visual meteorological conditions prevailed in the area about the time of the accident, and the flight was not operated on a flight plan. The flight originated from a private airstrip near Emporia, Kansas, about 0800, and was destined for 07S.

According to a statement from the pilot, the airplane began to pull right after touchdown on the dry turf runway. He applied a "lot" of left rudder to try and keep the airplane going straight. As the airplane continued to pull right, with full left rudder and full aft elevator, the pilot tried "tapping" the left brake. The empennage rose up, so he stopped using the left brake and just used the left rudder. The airplane nosed over as it approached the west edge of the runway markers. The pilot indicated that the right brake was locked during the landing. The brake was subsequently unlocked to facilitate moving the airplane from the runway.

A Federal Aviation Administration (FAA) inspector examined the runway and reported that it exhibited surface witness marks consistent with a locked brake on turf. He also examined the airplane. However, the brakes were not locked when he conducted the examination and a reason for a locked brake could not be determined.

The pilot, who is also an airplane mechanic, was asked if there were any anomalies found with the brake system after the accident. He indicated that he did not find anything definitive wrong with the brake system. He believed that something in the master cylinder caused the brake to lock. However, further inspection of the master cylinder did not reveal any anomalies. Additionally, the brake lines and wheel cylinder checked out "good" with no evidence of blockage, kinks, or bends.

A review of FAA airworthiness documents showed that the brakes were modified from the original brakes to Cleveland Brakes on March 28, 1993 in accordance with Supplemental Type Certificate SA13GL.

Pilot Information

Certificate: Private
Age: 37, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
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: BasicMed Without Waivers/Limitations
Last FAA Medical Exam: 12/31/2017
Occupational Pilot: No
Last Flight Review or Equivalent: 09/27/2017
Flight Time:   1065 hours (Total, all aircraft), 480 hours (Total, this make and model), 1000 hours (Pilot In Command, all aircraft), 17.9 hours (Last 90 days, all aircraft), 6 hours (Last 30 days, all aircraft), 2 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Cessna
Registration: N2496N
Model/Series: 120 No Series
Aircraft Category: Airplane
Year of Manufacture: 1947
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 12749
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 11/23/2018,
Certified Max Gross Wt.: 1450 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 4277.9 Hours at time of accident
Engine Manufacturer: Teledyne Continental Motors
ELT:  C91  installed, not activated
Engine Model/Series: C90-12F
Registered Owner: On file
Rated Power: 90 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: EQA, 1379 ft msl
Distance from Accident Site: 15 Nautical Miles
Observation Time: 0835 CST
Direction from Accident Site: 297°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: Calm /
Turbulence Type Forecast/Actual:
Wind Direction:
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 30.21 inches Hg
Temperature/Dew Point: -1°C / -5°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Emporia, KS
Type of Flight Plan Filed: None
Destination: Beaumont, KS (07S)
Type of Clearance: None
Departure Time: 0800 CST
Type of Airspace: Class G

Airport Information

Airport: Beaumont Hotel (07S)
Runway Surface Type: Grass/turf
Airport Elevation: 1600 ft
Runway Surface Condition: Dry
Runway Used: 18
IFR Approach: None
Runway Length/Width: 2400 ft / 80 ft
VFR Approach/Landing: Traffic Pattern

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:  37.659167, -96.527778 (est)

1 comment:

  1. Sounds like someone in the cockpit had their foot on the brake. I wonder if it had dual brakes? I’ve had passengers stiffen up on landing and inadvertently pushing on the brakes. My current plane has pilot only brakes so I would have to blame myself. Or maybe the darn master cylinder.


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