What the profile screens for
Airspeed exceeds the applicable gear operating or extended limit during gear movement or extension.
Why it matters
A validated exceedance may affect doors, gear, airworthiness, and maintenance action and may reflect high-energy configuration.
Build the event around relationships—not one number.
Define the operating context
Identify the descent / approach state, aircraft configuration, location, and any required external data before applying logic.
Screen the signal relationship
Use validated combinations of calibrated airspeed, gear handle, gear position; avoid treating one isolated value as the whole event.
Confirm it is a genuine event
Check polarity, units, source, recording rate, dropouts, air/ground logic, persistence, and false-positive mechanisms.
Connect data to the safety question
Review procedures, reports, weather, airport and traffic context, exposure, recurrence, and the strength of the related barriers.
Recorded signals that may help explain the event.
Calibrated airspeed
Indicated airspeed corrected for instrument and position error, as provided by the aircraft data system.
Open parameter guide ↗discreteLanding gear status
Command, position, lock, and ground-sensing states associated with the landing gear; these are separate signals with different meanings.
Open parameter guide ↗Questions before conclusions
- Q1
Are calibrated airspeed, gear handle, gear position valid, correctly decoded, time-aligned, and sampled well enough for this event?
- Q2
What changed immediately before, during, and after the landing-gear limit speed exceedance indication?
- Q3
How do aircraft configuration, weather, airport geometry, automation state, and crew reports change the interpretation?
- Q4
Which current flight manual, SOP, maintenance, or operator event definition controls the final conclusion?
Safety topics that broaden the event review.
Unstable Approach
Recognize when path, speed, configuration, power, or crew readiness has moved outside applicable stabilized-approach criteria.
Open topic brief ↗Aircraft SystemsFlight-Deck Automation
Use mode awareness, active monitoring, and aircraft-response verification to keep automation aligned with crew intent.
Open topic brief ↗Flight OperationsControlled Flight Into Terrain
Understand how a controllable aircraft can be flown into terrain or an obstacle through path, altitude, navigation, monitoring, or situational-awareness breakdowns.
Open topic brief ↗12 useful starting points
Terminology and topic relationships select these links; the publisher source remains authoritative.
SAFO 23001 — Potential Damage to Nose Landing Gear (NLG) by Improper Towing Procedures of the Mitsubishi Heavy Industries Regional Jet (MHIRJ) (formerly Bombardier) CL-600-2B19, CL-600-2C10 and CL-600-2D24 Airplanes
Official U.S. Federal Aviation Administration material indexed for approach and landing and ground operations. Open the publisher source for the complete document, scope, and current status.
Open official sourceSAFO 10007 — Tundra Tire Installation/Approval for Airplanes Equipped with Leaf Spring Type Main Landing Gear
Official U.S. Federal Aviation Administration material indexed for approach and landing and airworthiness and systems. Open the publisher source for the complete document, scope, and current status.
Open official sourceA320 landing gear downlock
Official Airbus Safety First material indexed for approach and landing and airworthiness and systems. Open the publisher source for the complete document, scope, and current status.
Open official sourceNear CFIT event during Non Precision Approach
Official Airbus Safety First material indexed for approach and landing. Open the publisher source for the complete document, scope, and current status.
Open official sourceProper Landing Gear Servicing for Safe Operations
Official Airbus Safety First material indexed for approach and landing and maintenance. Open the publisher source for the complete document, scope, and current status.
Open official sourceStatistical Summary of Commercial Jet Airplane Accidents, 1959–2024
Boeing's 56th annual statistical summary organizes commercial-jet accident data using stated definitions and the CAST/ICAO occurrence taxonomy.
Open official sourceIATA Annual Safety Report — 2024
IATA's 61st annual report provides an interactive, method-defined view of commercial aviation accident performance and contributing-factor classifications.
Open official sourceAC 91-79B — Aircraft Landing Performance and Runway Excursion Mitigation
This FAA circular brings together landing-performance planning, time-of-arrival assessment, RCAM information, and operational practices for reducing runway-excursion risk.
Open official sourceSafety Alert SA-077 — Stabilized Approaches Lead to Safe Landings
The NTSB alert highlights the need to establish and maintain a stabilized approach and to go around when an approach falls outside applicable criteria.
Open official sourceGo-Around Decision-Making and Execution Project — Final Report
The Flight Safety Foundation project examines go-around policy compliance, decision biases, operational pressures, and the risks that also need to be managed during go-around execution.
Open official sourceSAFO 14002 — SAFO 14002, Global Positioning System ( GPS )/Global Navigation Satellite System ( GNSS ) Navigator/Autopilot Compatibility
Official U.S. Federal Aviation Administration material indexed for flight controls and automation and navigation and surveillance. Open the publisher source for the complete document, scope, and current status.
Open official sourceSAFO 08005 — Preflight of helicopter hydraulic systems to include validation of control movement smoothness and identification of adverse flight control “stick-jump.”
Official U.S. Federal Aviation Administration material indexed for flight controls and automation and airworthiness and systems. Open the publisher source for the complete document, scope, and current status.
Open official source