Runway excursion Accident Luscombe 8B Trainer N39083,
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ASN Wikibase Occurrence # 199006
 
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Date:Wednesday 12 October 2016
Time:09:42
Type:Silhouette image of generic L8 model; specific model in this crash may look slightly different    
Luscombe 8B Trainer
Owner/operator:Private
Registration: N39083
MSN: 1844
Year of manufacture:1941
Total airframe hrs:1838 hours
Engine model:Continental C-90 12-F
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Category:Accident
Location:Huntingburg, IN -   United States of America
Phase: Landing
Nature:Private
Departure airport:Huntingburg, IN (HNB)
Destination airport:Huntingburg, IN (HNB)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
According to the pilot in the tailwheel-equipped airplane, after a 1-hour-long local flight, he returned to the departure airport and noticed that he would be landing with a gusting, direct left crosswind. He reported that he made one low pass about 20 ft above the ground and that he “felt the airplane was steady.” He accomplished a go-around and initiated an approach. He recalled that he made a three-point landing and touched down about 50 mph on the runway centerline. When the wheels touched down, a wind gust lifted the left wing, and he tried to compensate with aileron and throttle, but he “was too slow to regain control of the airplane.” He reported that the left wing struck the ground and that the airplane exited the left side of the runway and nosed over. The airplane sustained substantial damage to both wings and the firewall.
The METAR at the airport reported that, at the time of the accident, the wind was from 180° at 11 knots, gusting to 16 knots. The airplane landed on runway 27.
According to the FAA-H-8083-3B Airplane Flying Handbook, “Crosswind After-Landing Roll,” pages 8-15 and 8-16:
Retaining control on the ground is a critical part of the after-landing roll, because of the weathervaning effect of the wind on the airplane.
While the airplane is decelerating during the after-landing roll, more and more aileron is applied to keep the upwind wing from rising. Since the airplane is slowing down, there is less airflow around the ailerons and they become less effective. At the same time, the relative wind is becoming more of a crosswind and exerting a greater lifting force on the upwind wing.
When the airplane is coming to a stop, the aileron control must be held fully toward the wind.
The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.


Probable Cause: The pilot’s delayed crosswind correction during the landing roll with a gusting left crosswind, which resulted in the airplane weathervaning and nosing over.


Accident investigation:
cover
  
Investigating agency: NTSB
Report number: GAA17CA021
Status: Investigation completed
Duration:
Download report: Final report

Sources:

NTSB

Location

Revision history:

Date/timeContributorUpdates
19-Aug-2017 16:35 ASN Update Bot Added
15-May-2022 03:42 Ron Averes Updated [Aircraft type]

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