LAX92LA363

NTSB accident investigation · North American NA-64 · Bakersfield, CA · August 23, 1992

Accident · No injuriesLimited investigationFinal report
Date
August 23, 1992, 08:10 local (15:10 UTC)
Place
Bakersfield, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3201UNorth American NA-64
Weather
Visual (VMC) · Day
Status
Completed · report December 9, 1993
Report
Approved by Office Director
FAA report
19920823032829A
Case key
27743

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Leakage of brake fluid from an unknown source onto the brake lining and drum.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterLanding - roll
Landing gear,normal brake system - leakCause
Landing gear,normal brake system - undeterminedCause
Directional control - not possiblePilot in command
Ground loop/swerve - inadvertentPilot in command
Main gear collapsedLanding - roll
Landing gear,main gear - overload

Analysis

The pilot said that during landing the aircraft began turning to the left. He attempted to correct the turning tendency with right rudder and brake application; however, the aircraft suddenly ground looped and collapsed the main landing gear. The brakes were examined and brake fluid was observed on the brake drum and lining. Disassembly of the left brake cylinder revealed deep corrosion pits on the interior surface of the cylinder. Due to the manufacture date of the airplane, vegetable base (automotive) brake fluid is used. It was reported that unlike mineral base brake fluid used in modern aircraft, 'vegetable base fluid will not tolerate high temperature and will cause a brake lining to 'grab' the drum during heavy brake application.'

Aircraft

Registration
N3201U
Reported as
North American NA-64
Category
Airplane
Serial number
64-2202
Engine
Wright R-975-E3, 440 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Albert Pemberton, doing business as Pemberton Aircraft Fuel Svc
Registered owner
Pemberton Aircraft Fuel Svc
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · April 23, 1992 · 14 hours before
Airport
BFL · Meadows Field, runway 30R, 10,857 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
59
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
2,200 total · 10 in this make and model · 2,100 as pilot in command · 20 in the last 90 days · 17 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 45 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.