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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

May 26, 1990 · Piper PA-24-250 · N7308P

Lyons, NY

Overview

Report Status
Probable Cause
Event Type
Accident
Date
May 26, 1990
Injury Outcomes
No injuries (1 uninjured)
Location
Lyons, NY
Aircraft
Piper PA-24-250
Tail Number
N7308P
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC90LA112

THE AIRPLANE RAN OFF THE END OF THE RUNWAY AND DOWN AN EMBANKMENT AFTER THE LEFT BRAKE FAILED DURING LANDING. THE PILOT SAID HE HAD BRAKES ON THE RIGHT, BUT NOT THE LEFT. THE FAA EXAMINED THE AIRCRAFT AND FOUND THE LEFT BRAKE WORN TO THE POINT THAT THE PISTON EXTENDED BEYOND ITS NORMAL RANGE AND ALLOWED THE SEAL TO LEAK AND THE BRAKE TO FAIL. THEY ALSO SAID THE RIGHT BRAKE HAD FAILED IN A SIMILAR MANNER 4 HOURS PRIOR AND THE OWNER HAD INSTRUCTED THE REPAIR FACILITY TO ONLY REPLACE THE LININGS ON THE RIGHT SIDE.

NTSB Probable Cause

A WORN OUT BRAKE ON THE LEFT MAIN GEAR. FACTORS RELATED TO THE ACCIDENT WERE: THE OWNER'S DECISION NOT TO REPAIR THE LEFT BRAKE AFTER THE RIGHT BRAKE HAD A SIMILAR FAILURE 4 HOURS EARLIER.

Full Narrative

THE AIRPLANE RAN OFF THE END OF THE RUNWAY AND DOWN AN EMBANKMENT AFTER THE LEFT BRAKE FAILED DURING LANDING. THE PILOT SAID HE HAD BRAKES ON THE RIGHT, BUT NOT THE LEFT. THE FAA EXAMINED THE AIRCRAFT AND FOUND THE LEFT BRAKE WORN TO THE POINT THAT THE PISTON EXTENDED BEYOND ITS NORMAL RANGE AND ALLOWED THE SEAL TO LEAK AND THE BRAKE TO FAIL. THEY ALSO SAID THE RIGHT BRAKE HAD FAILED IN A SIMILAR MANNER 4 HOURS PRIOR AND THE OWNER HAD INSTRUCTED THE REPAIR FACILITY TO ONLY REPLACE THE LININGS ON THE RIGHT SIDE.

Flight

Event TypeAccident
Event Time12:02 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper PA-24-250
Tail NumberN7308P
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-540-A1C5 · Reciprocating · 250
Seats4

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 51 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind270° @ 4 kt
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data