Incident Overview
On July 8, 2008, at 21:40 UTC, a Monarch Airlines Boeing 757, registration G-MONC, was conducting a passenger transport flight and was in the approach phase to Faro Airport when the left pneumatic duct failed. This failure caused the appearance of the “LEFT BLEED OVERFLOW” message in the cockpit.
Findings
Following the incident, maintenance personnel inspected the aircraft and discovered that the pneumatic duct along the leading edge of the left wing was damaged, along with the associated thermal insulation. The extent of the damage required replacement parts, so the airline's headquarters was contacted to arrange for the necessary material to be delivered for the repair.
Actions Taken
The Portuguese Aviation Accident Prevention and Investigation Office (GPIAA) did not open a formal investigation into the occurrence. However, they notified the United Kingdom's Air Accidents Investigation Branch (AAIB) and provided all collected information, offering further assistance if needed. As no request for additional support was received from the AAIB, the GPIAA considered the matter closed.