Serious incident Canadair CRJ-100ER N924CA, Sunday 30 April 2000
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Date:Sunday 30 April 2000
Time:21:42 LT
Type:Silhouette image of generic CRJ1 model; specific model in this crash may look slightly different    
Canadair CRJ-100ER
Owner/operator:Comair
Registration: N924CA
MSN: 7026
Total airframe hrs:16195 hours
Engine model:GE CF34-3A1
Fatalities:Fatalities: 0 / Occupants: 53
Other fatalities:0
Aircraft damage: Minor
Category:Serious incident
Location:White Plains, NY -   United States of America
Phase: Approach
Nature:Passenger - Scheduled
Departure airport:Covington, KY (KCVG)
Destination airport:(KHPN)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
The pilots of the CRJ were conducting a visual approach at night. As the wing flaps were extended from 30 degrees, to 45 degrees, there was an uncommanded extension of the right wing flight spoiler. A roll to the right accompanied the extension, which was countered by the pilots. The airplane continued with the approach, landed uneventfully, and taxied to the gate. A post-flight inspection found the right wing flight spoiler extended about 10 degrees. Metallurgical examination revealed the outboard lug on the flight spoiler had failed due to fatigue. Fretting was found adjacent to the fatigue fracture. According to the METALS HANDBOOK, fatigue cracks can initiate in fretted area at levels of stress below what would be required for non-fretted areas.

Probable Cause:

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: NYC00IA124
Status: Investigation completed
Duration: 1 year and 2 months
Download report: Final report

Sources:

NTSB NYC00IA124

Location

Revision history:

Date/timeContributorUpdates
03-May-2024 10:18 ASN Update Bot Added

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