What this profile covers
Failure to deploy, stow, remain locked, or respond symmetrically, with consequences for flight, landing deceleration, control, and maintenance.
Why it matters
Powerplant and fuel threats can reduce available thrust, endurance, redundancy, and diversion options across every phase of flight. For thrust reverser malfunction, useful analysis connects the immediate event with exposure, defenses, recurrence, and the wider operating system rather than treating one observation as a final conclusion.
Propulsion reliability, fuel availability and quality, engine response, and performance consequences.
Understand the subject before interpreting a signal.
In plain language, this profile examines failure to deploy, stow, remain locked, or respond symmetrically, with consequences for flight, landing deceleration, control, and maintenance.
Build a multi-source picture
- Engine commands, response, and health parameters
- Fuel quantity, quality, planning, and servicing records
- Aircraft performance and system effects
- Maintenance, inspection, and physical evidence
Timing, relationships, and recurrence
Relevant recorded context may include normal acceleration, calibrated airspeed, roll angle, ground spoiler position, thrust reverser status. Use validated mappings and examine signal relationships over the applicable flight phase.
Do not turn an observation into a conclusion
A command, indication, or trend is not the same as verified produced thrust, fuel condition, or component failure; engineering corroboration remains essential.
Keep controlling material visible
Apply the current approved manuals, procedures, authority requirements, investigation evidence, and validated organizational definitions for any operational decision.
Normal acceleration
Acceleration measured broadly along the aircraft's vertical body axis; its touchdown peak can help characterize a landing load when interpreted with other signals.
Open parameter guide ↗ktCalibrated airspeed
Indicated airspeed corrected for instrument and position error, as provided by the aircraft data system.
Open parameter guide ↗degRoll angle
Aircraft bank attitude about the longitudinal axis.
Open parameter guide ↗deg or discreteGround spoiler position
Position or deployment state of panels used to reduce lift and increase wheel loading after touchdown.
Open parameter guide ↗discrete or %Thrust reverser status
Command and/or physical deployment state for reverse thrust, depending on recorded signal availability.
Open parameter guide ↗psi, bar, or %Brake pressure
Hydraulic pressure or command associated with wheel braking; it is not a direct measurement of tyre/runway friction.
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 ↗From a broad topic to a defensible safety review.
Define
State what thrust reverser malfunction means for the aircraft, operation, authority, and organization in scope.
Verify
Confirm the provenance, quality, timing, units, completeness, and limitations of every data source used.
Describe
Reconstruct what happened and quantify relevant exposure before discussing causes or corrective action.
Corroborate
Compare flight data with reports, operational context, technical evidence, and authoritative source material.
Test barriers
Identify which preventive, recovery, and consequence-mitigation controls should have worked and how their performance can be measured.
Assure
Assign proportionate action and verify whether the control and safety performance improve without harmful unintended effects.
Questions before conclusions
- Q1
How is thrust reverser malfunction defined for the aircraft, operation, authority, and organization being reviewed?
- Q2
Which precursors, recorded signals, reports, and external data would confirm the event and describe its context?
- Q3
Which preventive, recovery, and consequence-reduction barriers should work, and where could they weaken?
- Q4
What does recurrence, exposure, severity potential, or change over time show before choosing a safety action?
8 connected event profiles
These are terminology and family connections for exploration—not claims that FDM alone can determine the topic.
Excessive roll at touchdown
Bank angle at first or main-gear touchdown approaches an aircraft-specific ground-clearance monitoring condition.
Open FDM profile ↗FDM-081 · Landing rolloutLate ground-spoiler deployment
Ground spoilers deploy later than the validated touchdown and air/ground sequence for the aircraft.
Open FDM profile ↗FDM-082 · Landing rolloutLate reverse-thrust selection
Reverse command or deployment begins later than the operator-defined landing-roll context.
Open FDM profile ↗FDM-084 · Landing rolloutLate braking after touchdown
Brake command or pressure begins later than the validated landing-roll sequence.
Open FDM profile ↗FDM-085 · Landing rolloutLow landing deceleration
Groundspeed reduction is below the validated expectation for the runway, aircraft state, and stopping-system context.
Open FDM profile ↗FDM-086 · Landing rolloutLanding-roll lateral deviation
Aircraft track departs from the runway centreline or expected rollout corridor after touchdown.
Open FDM profile ↗FDM-088 · Landing rolloutHigh-speed runway exit
The aircraft enters or turns onto a runway exit with high groundspeed, lateral acceleration, or steering demand.
Open FDM profile ↗FDM-090 · Landing rolloutHigh brake temperature after landing
Recorded or derived brake temperature exceeds an aircraft- and maintenance-specific monitoring condition after landing.
Open FDM profile ↗Go deeper into the closest ASIP research guides.
Rejected Takeoff
Understand the time-critical stop decision through speed, failure recognition, runway remaining, braking, spoilers, and reverse thrust.
Open intelligence brief ↗Aircraft SystemsEngine Failure and Thrust Loss
Separate commanded thrust, actual engine response, system effects, and crew management across partial, asymmetric, and complete thrust-loss events.
Open intelligence brief ↗Aircraft SystemsFire and Smoke
View fire safety as detection, containment, checklist action, diversion, evacuation, and rescue barriers.
Open intelligence brief ↗12 useful starting points
Original ASIP summaries lead to publisher pages. ASIP does not copy or host the reports.
SAFO 11003 — Embraer ERJ-190 Series Thrust Reverser Cowling Safety
Official U.S. Federal Aviation Administration material indexed for powerplant. Open the publisher source for the complete document, scope, and current status.
Open official sourceSAFO 09017 — Training for Bombardier Learjet 60 (Learjet 60) Pilots on Inadvertent Thrust Reverser Stowageon Takeoff and Landing
Official U.S. Federal Aviation Administration material indexed for approach and landing and takeoff. Open the publisher source for the complete document, scope, and current status.
Open official sourceSAFO 07007 — Thrust Lever Position during Landing with One Deactivated Thrust Reverser on Airbus A318, A319, A320, A321 Series Airplanes
Official U.S. Federal Aviation Administration material indexed for approach and landing and powerplant. Open the publisher source for the complete document, scope, and current status.
Open official sourceA340 Thrust Reverser Unlocked
Official Airbus Safety First material indexed for powerplant. Open the publisher source for the complete document, scope, and current status.
Open official sourceThrust Reverser Selection is a Decision to Stop
Official Airbus Safety First material indexed for powerplant and human factors. Open the publisher source for the complete document, scope, and current status.
Open official sourceThrust Reverser Selection Means Full-Stop
Official Airbus Safety First material indexed for powerplant. Open the publisher source for the complete document, scope, and current status.
Open official sourceThrust Reverser Unlock In-flight
Official Airbus Safety First material indexed for powerplant. Open the publisher source for the complete document, scope, and current status.
Open official sourceAnnex 19 — Safety Management, Third Edition
Annex 19 consolidates ICAO safety-management provisions, including State safety responsibilities, SMS, safety-data collection and processing, and the protection and sharing of safety information.
Open official sourceAnnual Safety Review 2025
EASA's review uses occurrence and accident information to describe performance across aviation domains and to support the European safety-risk-management process.
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 120-92D — Safety Management Systems for Aviation Service Providers
FAA guidance explains performance-based, scalable approaches to integrating safety policy, risk management, assurance, and promotion into aviation organizations.
Open official sourceCommon Taxonomy Team
International work on common aviation occurrence categories and definitions for consistent reporting and analysis.
Open referenceSafety Risk Management
European safety-risk process connecting data, safety issues, risk portfolios, priorities, and safety action.
Open referenceAnnual programmes and reports
Annual safety reviews and risk portfolios used to identify key risk areas, safety issues, and emerging issues.
Open referenceEuropean Plan for Aviation Safety 2025
A broad evidence-based portfolio showing the scale and connected nature of current aviation safety issues.
Open referenceOperational issues index
A practical discovery index for operational safety subjects; official authority and manufacturer sources remain controlling where applicable.
Open reference