down lock


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down lock

[′dau̇n ‚läk]
(aerospace engineering)
An airplane mechanism that locks the landing gear in a down position after the gear is lowered.

down lock

A device for locking retractable landing gear in the extended or down position. These locks may be mechanical, hydraulic, electrical, or a combination of two or more types.
References in periodicals archive ?
After referring to the technical order, Maj Schaare used the down lock override feature to lower the gear handle.
The landing gear attachment points and actuator were destroyed by fire but the down lock hook was found in the locked position.
After completing the landing gear alternate extension checklist with the same indications, the crew decided to leave the nose gear down lock handle installed and pinned the nose gear down.
During an investigation," states an FAA inspector, "it was discovered that the right main landing gear upper drag link assembly (p/n 1619000) had failed at the attach point for the main landing gear down lock latch assembly.
Post-accident examination revealed damage to the nose landing gear steering stops, the nose landing gear down lock mechanism and the nose landing gear wheel well sidewall.
The author should be aware that the tower operator cannot see landing gear down locks, nor can a pilot flying in an airplane flying in formation with you.
An employee of the business, who did not want to be named, said: "They've filed down the main gate locks out of the compound, filed down locks on the shutter door and smashed through a PVC door as well.