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Aviation safety reports, made easier to study

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June 15, 2016 · Air Tractor AT 502 Undesignat · N1002L

Delhi, LA

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
June 15, 2016
Injury Outcomes
No injuries (1 uninjured)
Location
Delhi, LA
Aircraft
Air Tractor AT 502 Undesignat (1988)
Tail Number
N1002L
Operator
Oligrow
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA16CA321

During a telephone interview, the pilot of a tailwheel equipped airplane reported that during the landing roll on a private agricultural airstrip, a piece of concrete from the runway chipped off and hit the right brake. The pilot further reported that he applied the brakes to stop on the runway and then ground looped to the left. During the ground loop, the fuselage sustained substantial damage. The pilot reported there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. A postaccident mechanical inspection revealed that the hydraulic line on the right main landing gear was severed, which would have made the right brake inoperable.

NTSB Probable Cause

The pilot's inability to maintain directional control during the landing roll as a result of a piece of concrete from the runway impacting the right main landing gear brake during the landing roll, resulting in a right brake failure and a ground loop.

Full Narrative

During a telephone interview, the pilot of a tailwheel equipped airplane reported that during the landing roll on a private agricultural airstrip, a piece of concrete from the runway chipped off and hit the right brake. The pilot further reported that he applied the brakes to stop on the runway and then ground looped to the left. During the ground loop, the fuselage sustained substantial damage. The pilot reported there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. A postaccident mechanical inspection revealed that the hydraulic line on the right main landing gear was severed, which would have made the right brake inoperable.

Flight

Event TypeAccident
Event Time18:30 CDT
Nearest Airport0nm
Flight Plan FiledUnknown
Flight Plan ActivatedUnknown
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftAir Tractor AT 502 Undesignat
Tail NumberN1002L
Aircraft CategoryAir
DamageSubstantial
OperatorOligrow
Operating RulePart 137
Engines1
Engine TypeTurboprop
Engine DetailsP&W Canada · PT6A-34AGJ · Turboprop
Seats1

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 33 · Second Class · None

Conditions

ConditionsVMC
LightDusk
WindCalm
Visibility8 sm
CeilingNone
Altimeter29.92 inHg
Observation Time01:53
Weather SourceWFAC

Appendix: Source Data