Aviat A-1B N252U

Summary

On 23 November 2011 at about 22:30 local time, a Aviat A-1B registered N252U, operated by C & M Kuhn LLC, was involved in an accident near Gainesville, Texas, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

23 November 2011 at 22:30

Classification

Accident

Location

Gainesville, Texas, United States

Coordinates

33.6291, -97.1506

Aircraft

Aviat A-1B

Registration

N252U

Category

Airplane

Engines

1

Operator

C & M Kuhn LLC

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

McKinney → Addison

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN12LA087

Nobody was injured.

The right main gear tire contacting the brake caliper, which resulted in an uncommanded brake effect on the wheel.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The pilot performed a landing on a remote sandbar in the tailwheel-equipped airplane. The pilot stated that, on landing, the airplane started a slow turn to the right. He added that it appeared the right brake had locked-up and that he tried to correct the turn by adding full left rudder, left aileron, and full aft elevator. The pilot was unable to correct the turn, and the airplane nosed over coming to rest in the inverted position. After the airplane was recovered, it was noted that the airplane’s wheels were free to rotate. A “witness mark” was found on the right tire corresponding to the brake caliper. The airplane was equipped with low pressure, oversized bush wheels. The event is consistent with low tire pressure and/or a side load on the tire, which allowed it to come into contact with the brake caliper. The result of tire/caliper contact would be a dragging or brake effect on the wheel.

Quoted verbatim from the NTSB record.