AAIB investigation to DHC-8-402 Dash 8, G-JECJ Addendum

Multiple electrical system failures en route from Edinburgh to Brussels, 23 October 2013.

• From: Air Accidents Investigation Branch
• Published: 10 December 2014

• Category: Commercial - fixed wing
• Report type: Bulletin - Field investigation
• Date of occurrence: 23 October 2013
• Aircraft type: DHC-8-402 Dash 8
• Location: Manchester Airport
• Registration: G-JECJ

Summary:

Whilst enroute, the crew experienced a number of cautions and warnings on the Central warning Panel (CWP). The number of these increased, and cabin and cockpit lights also started to fail. The aircraft diverted to Manchester, where an uneventful landing was made. It is suspected that there had been a failure of the right starter/generator or its Generator Control Unit (GCU) and that a further latent failure of a contactor had prevented automatic connection of the right DC bus to the left DC bus. The services normally powered by the right DC bus would now be powered by the main aircraft battery, which would progressively discharge.

Download report:

DHC-8-402 Dash 8 G-JECJ Addendum 11-14.pdf

Published 10 December 2014