AAIB report January 2021

[Hilico]

Chafing cable in equipment bay of 109E causes localised burning. Link (https://www.gov.uk/aaib-reports/aaib-investigation-to-agusta-a109e-g-etpj)

Scout loses door window in flight. Link (https://www.gov.uk/aaib-reports/aaib-investigation-to-westland-scout-ah1-g-cibw)

[John R81]

G-ETPJ Augusta 109E (https://assets.publishing.service.gov.uk/media/5fd89bfed3bf7f3059ef3d2d/Agusta_A109E_G-ETPJ_01-21.pdf) Electrical fire, aft equipment bay. The chaffed cable was part of a design change that was made whilst the helicopter was on the UK military register before being approved by a Supplementary Type Certificate (STC) when the helicopter was transferred to the civil register. A protective strip should have been installed as part of the design change, but this was missing when the helicopter was examined after the incident.

G-CIBW Westland Scout (https://assets.publishing.service.gov.uk/media/5fd8a91ae90e071bde8ec00b/Westland_Scout_AH1_G-CIBW_01-21.pdf) Loss of door window in level flight. Examination of the door and window frame found that the rubber window retaining grommet had perished.