ANCHORAGE, AK, USA
N753AS
BOEING 727-22C
AFTER DEPARTURE, THE FLIGHT CREW RETRACTED THE LANDING GEAR AND NOTICED A NOSE GEAR DISAGREEMENT LIGHT. UPON ARRIVING AT ANCHORAGE, THE FLIGHT CREW COULD NOT LOWER THE NOSE GEAR THROUGH NORMAL OR MANUAL MEANS. THE AIRPLANE LANDED WITH MAIN GEAR EXTENDED AND THE NOSE GEAR RETRACTED. EXAMINATION OF THE NOSE GEAR MECHANISMS REVEALED THAT THE TWO LINKS WHICH EXERCISE THE PAWL BLOCK LOCKS HAD FAILED ALLOWING THE NOSE GEAR TO REMAIN IN THE FULLY RETRACTED AND LOCKED POSITION.
Source: NTSB Aviation Accident Database
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