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Atlas / NTSB / SEA85LA058

NTSB CAROL · Event

Event SEA85LA058

1985-02-16 LAS VEGAS, Nevada, United States Airport · LAS None 1 aircraft Status: Completed

Aircraft involved

Factual narrative

THE HYDRAULIC POWER PACK RESERVOIR WAS DEPLETED FROM A LEAK IN THE HAND PUMP SUCTION LINE, WHICH HAD BEEN CHAFED THROUGH BY INTERFERENCE WITH THE RIGHT RUDDER CABLE. APPARENTLY, THERE WAS SUFFICIENT BACK PRESSURE REMAINING TO LOWER AND LOCK THE NOSE GEAR, BUT THE MAIN GEAR NEVER EXTENDED BEYOND THE OVER-CENTER LOCKS AND COLLAPSED DURING THE LANDING ROLL. THE LANDING GEAR WARNING HORN WAS IMPROPERLY RIGGED AND NOT FUNCTIONAL. THE PILOT STATED HE OBSERVED A GEAR- DOWN INDICATION (LIGHT). THE INDICATING SYSTEM WAS FOUND TO BE PROPERLY CALIBRATED; HOWEVER, IT COULD NOT HAVE DISPLAYED A GEAR-DOWN LIGHT UNLESS THE MAIN GEAR WERE FULLY EXTENDED. THE PILOT'S STATEMENT IS IN ERROR IN THIS REGARD. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1985_SEA85LA058.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.