Loss of control Accident American Aviation AA-1A Trainer N9454L,
ASN logo
ASN Wikibase Occurrence # 166830
 
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:Monday 9 June 2014
Time:11:15
Type:Silhouette image of generic AA1 model; specific model in this crash may look slightly different    
American Aviation AA-1A Trainer
Owner/operator:Private
Registration: N9454L
MSN: AA1A-0254
Year of manufacture:1971
Total airframe hrs:2202 hours
Engine model:Lycoming O-320
Fatalities:Fatalities: 2 / Occupants: 2
Aircraft damage: Destroyed
Category:Accident
Location:NW end El Mirage Dry Lake, NW of Adelanto, CA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Private
Departure airport:El Mirage, CA
Destination airport:El Mirage, CA
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
The pilot was providing airplane rides to family and friends who had assembled at a dry lakebed. He completed two uneventful flights and then departed for a third flight from the lakebed. According to witnesses, the pilot had planned to perform a low pass over the group, and he did so just after takeoff, passing within about 50 ft directly overhead.

The entire accident sequence was captured on video. The airplane dipped its right wing as it passed over the camera position and, after the pass, continued in a climbing right turn, which progressed rapidly to almost 90 degrees of bank. The excessive bank angle resulted in the airplane exceeding its critical angle of attack and experiencing an accelerated stall at an altitude too low for recovery. The airplane then entered the initial stages of a spin before striking the ground in an almost vertical attitude.

Postaccident examination of the airframe and engine did not reveal any evidence of preimpact mechanical malfunction or failure. Although the reason for the aggressive turn could not be determined, the pilot's overflight of the group while maneuvering at low altitude is consistent with an intentionally-performed ostentatious display.


Probable Cause: The pilot's loss of airplane control while intentionally maneuvering close to the ground, which resulted in the airplane exceeding its critical angle of attack in a steep bank and entering an accelerated stall.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: WPR14FA239
Status: Investigation completed
Duration:
Download report: Final report

Sources:

NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=9454L

Location

Revision history:

Date/timeContributorUpdates
09-Jun-2014 22:08 Geno Added
10-Jun-2014 00:47 Geno Updated [Aircraft type, Registration, Cn, Operator, Phase, Source, Narrative]
10-Jun-2014 00:49 Geno Updated [Total fatalities, Narrative]
10-Jun-2014 04:06 Cooper Updated [Total fatalities]
10-Jun-2014 05:26 Geno Updated [Registration, Cn, Operator, Phase, Nature, Departure airport, Destination airport, Source, Narrative]
10-Jun-2014 05:31 Geno Updated [Aircraft type, Narrative]
15-Jun-2014 06:33 gerard57 Updated [Total fatalities, Source, Narrative]
29-Jun-2014 06:14 Geno Updated [Time, Source, Damage]
11-Dec-2016 18:00 Aerossurance Updated [Aircraft type, Narrative]
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
29-Nov-2017 15:01 ASN Update Bot Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative]

Corrections or additions? ... Edit this accident description

The Aviation Safety Network is an exclusive service provided by:
Quick Links:

CONNECT WITH US: FSF on social media FSF Facebook FSF Twitter FSF Youtube FSF LinkedIn FSF Instagram

©2024 Flight Safety Foundation

1920 Ballenger Av, 4th Fl.
Alexandria, Virginia 22314
www.FlightSafety.org