What checks are performed during a post-maintenance gear cycle test?

• A. Verify full range of motion, door operation, uplock engagement, proper indication statuses, absence of leaks, and audible/minor abnormal noises.
• B. Only verify that the gear doors close.
• C. Check the temperature of the brake fluid.
• D. Verify wheel nut torque only.

Answer: (A)

A post-maintenance gear cycle test checks that the landing gear system operates correctly through its full extend/retract cycle and that all related safety and indication features are functioning. This means confirming the gear can move through its full range without binding, interference, or unexpected resistance, and that the doors open and close in sync with the gear position. It also verifies that the uplock engages properly so the gear stays securely in the retracted position, and that the cockpit and any ground indicators accurately reflect the gear’s actual state. Another essential part is looking for any hydraulic leaks or fluid loss in the gear system, plus listening for abnormal noises that could signal mechanical or hydraulic issues.

Choosing this all-encompassing check is why the answer is best: it covers mechanical movement, door operation, proper locking, correct indication of gear status, presence of leaks, and potential abnormal sounds. Verifying only one aspect, like doors, or something unrelated like brake fluid temperature or wheel nut torque, would miss critical failures that could compromise gear extension/retraction or retraction locking.