Long landing rollout — CMB542

CMB542 (Atlas AIR) was inbound to KPSM on 2026-06-05. SkyMeter detected a long landing rollout at Portsmouth International at Pease Airport (KPSM) on runway 16 at 08:36 UTC. Trace data at the event: 78 ft AGL, 25 kt GS, 0 fpm vertical. Approach stability score: 85/100. Scores in this band are observed on roughly 25% of approaches at this runway: one or more gates outside the per-runway tightest envelope, but still inside the typical operating range. METAR at the time reported 3 kt wind, 2 kt crosswind component, 16,093 m visibility. A long landing rollout is detected when ground deceleration after touchdown is below the per-runway P10 envelope. It is an observational measure of rollout efficiency, not a runway-exit incident. Detection algorithm and known limitations: see SkyMeter methodology.

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