What confirms the gear is fully retracted in the Seminole gear system?

• A. The warning horn sounds
• B. The three up limit switches are hit and the system reaches 1800 PSI
• C. The landing gear indicator light goes off
• D. The hydraulic pump automatically shuts off

Answer: (B)

Fully retracted means the gear is fully stowed and locked, which the Seminole’s system confirms with two things happening together: all three up limit switches are activated, and the retract circuit pressure reaches the normal full-retract value (about 1800 psi). The limit switches are wired to the gear legs, so when every leg is up, each switch is closed, proving there’s no gear still extended. Reaching the 1800 psi in the retract circuit shows the hydraulic system has completed the stroke and the gears are fully seated and locked. Other indicators aren’t as definitive: a warning horn can signal a fault or a gear-down condition, an indicator light going off might just reflect lighting status, and the pump shutting off on its own could occur for reasons unrelated to whether the gear is fully retracted.