Runway excursion Accident Cessna 170B N4476B,
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ASN Wikibase Occurrence # 231849
 
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Date:Saturday 28 December 2019
Time:13:45
Type:Silhouette image of generic C170 model; specific model in this crash may look slightly different    
Cessna 170B
Owner/operator:Private
Registration: N4476B
MSN: 26820
Year of manufacture:1955
Total airframe hrs:3967 hours
Engine model:Continental O-300-A
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Category:Accident
Location:Missoula International Airport (KMSO), MT -   United States of America
Phase: Take off
Nature:Training
Departure airport:Missoula, MT (MSO)
Destination airport:Missoula, MT (MSO)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
The pilot, who was receiving instruction for his tailwheel endorsement, reported that, during the takeoff roll, the airplane began to veer left. He applied corrective control inputs, and the flight instructor called for him to abort the takeoff, but the airplane ground looped and departed the runway. The airplane sustained substantial damage to the right wing and aileron. The instructor reported that the event happened too fast for him to correct the diversion and that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
 
 



Probable Cause: The pilot receiving instruction's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and ground-loop, and the flight instructor’s failure to adequately monitor the pilot.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: WPR20CA053
Status: Investigation completed
Duration: 6 months
Download report: Final report

Sources:

NTSB

Location

Revision history:

Date/timeContributorUpdates
31-Dec-2019 22:39 Captain Adam Added
01-Jul-2020 07:02 ASN Update Bot Updated [Time, Operator, Total occupants, Nature, Departure airport, Destination airport, Source, Narrative, Accident report, ]

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