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ASRS 2099318

ACN 2099318 · 2024-03 · Commercial Fixed Wing

Air carrier flight crew reported receiving a ground proximity warning during visual approach to TRI airport. Flight crew climbed to safe altitude and continue approach to landing.

Controlled Flight Toward Terrain Initial ApproachPart 121

Pilot narratives

Verbatim, de-identified by NASA. Placeholders: ZZZ, X, Y.

Reporter 1

During a visual approach backed by the ILS to Runway 23 at TRI, we descended to 3600 for the FAF. At 3700 the EGPWS (Enhanced Ground Proximity Warning System) commanded a climb. The AP (Autopilot) was disconnected immediately and we followed the command. ATC was notified and once we were clear we advised ATC and descended back. After this the approach and landing was uneventful.

Reporter 2

During a visual approach backed by the ILS to Runway 23 at TRI, we descended to 3600 for the FAF. At 3700 the EGPWS (Enhanced Ground Proximity Warning System) commanded a climb. The AP (Autopilot) was disconnected immediately and we followed the command. ATC was notified and once we were clear we advised ATC and descended back. After this the approach and landing was uneventful. Cause: Turbulence and gusty winds may have triggered an increase in descent.

NASA classification · Anomalies

  • Deviation / Discrepancy - Procedural
  • Inflight Event / Encounter

NASA classification · Assessments

Contributing Factors / Situations
Environment - Non Weather Related · Human Factors · Weather
Primary Problem
Ambiguous

ASRS reports are voluntary, de-identified by NASA, and represent the reporter's perspective; they are not investigated and cannot be used to infer prevalence. Authoritative source: asrs.arc.nasa.gov ↗