Accident Beechcraft 1900C N79GL,
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Date:Wednesday 10 December 1997
Time:17:19 LT
Type:Silhouette image of generic B190 model; specific model in this crash may look slightly different    
Beechcraft 1900C
Owner/operator:Great Lakes Aviation
Registration: N79GL
MSN: UC-79
Year of manufacture:1989
Total airframe hrs:19032 hours
Engine model:P&W PT6A-65B
Fatalities:Fatalities: 0 / Occupants: 4
Aircraft damage: Substantial
Category:Accident
Location:Rockford, IL -   United States of America
Phase: Take off
Nature:Unknown
Departure airport:(KRFD)
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
The airplane had just been refurbished, and it required a maintenance flight check before being released for flight. The pilot conducted a preflight of the airplane, checking the flight controls for freedom of movement and observing aileron movement up and down, but did not 'see' or notice incorrect aileron movement. The pilot used normal takeoff procedures. During rotation, the airplane's left wing began to drop to the left. The pilot applied right aileron, but with no effect. The airplane struck the left edge of the runway in a left wing low attitude, and the left wing impacted a taxi sign. An examination of the airplane revealed that the aileron cables were incorrectly connected at the turnbuckles in the wheelwell. The aircraft maintenance manual contained the following warning: 'Visually check to assure that aileron travel responds properly to the control wheel movement. When the control wheel is turned right, the right aileron should move up and the left aileron should move down.'

Probable Cause: improper installation of aileron cables by the maintenance personnel, inadequate inspection by the company's maintenance personnel of maintenance performed, and inadequate preflight by the pilot.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: CHI98LA063
Status: Investigation completed
Duration: 5 months
Download report: Final report

Sources:

NTSB CHI98LA063

Location

Revision history:

Date/timeContributorUpdates
12-Mar-2024 06:25 ASN Update Bot Added

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