Which annunciator indicates a clogged fuel filter?

Which annunciator indicates a clogged fuel filter?

• A. L FUEL LEVEL LO annunciator
• B. L or R F FLTR BYPASS annunciator
• C. GEN OFF annunciator
• D. FUEL PUMP LO annunciator

Answer: (B)

In the Beechjet 400A fuel system, a clogged fuel filter is indicated by the fuel filter bypass indicator on the left or right side. When a filter becomes sufficiently restricted, the bypass valve opens to maintain fuel flow, and the corresponding FUEL FILTER BYPASS light comes on. This tells you the filter is likely clogged and needs service or replacement. Other lights shown—low fuel level, generator off, or low fuel pump—relate to different systems (quantity, electrical generation, or pump performance) and do not indicate a clogged filter.

In the Beechjet 400A fuel system, a clogged fuel filter is indicated by the fuel filter bypass indicator on the left or right side. When a filter becomes sufficiently restricted, the bypass valve opens to maintain fuel flow, and the corresponding FUEL FILTER BYPASS light comes on. This tells you the filter is likely clogged and needs service or replacement. Other lights shown—low fuel level, generator off, or low fuel pump—relate to different systems (quantity, electrical generation, or pump performance) and do not indicate a clogged filter.