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Developing event. Generated by AI and subject to further corroboration and review.

DevelopingMedium impactAI Refreshed

GE Aerospace Addresses CFM Leap Engine Durability and Coking Issues with HPT Updates

Occurred 1 Jan 2024·Detected 21 May 2026·
🇺🇸 GE Aerospace facility, Evendale, Ohio, United States2 reportsCAT BOEI
AviationAviationCasualty & Liability

GE Aerospace is rolling out high-pressure turbine (HPT) durability improvement packages for the CFM International Leap-1A and Leap-1B turbofans (A320neo and 737 Max), addressing heat-induced blade degradation and fuel-nozzle coking. Separately, a Leap-1B software update is in certification with the FAA, EASA and Boeing following NTSB recommendations on 737 Max cabin-smoke events tied to bird-strike activation of the Load Reduction Device. The items are mid-life engineering and airworthiness actions with measured fleet disruption rather than an acute loss event; no insured loss figures have been reported.

AI-generated from linked source reports. See our correction policy.

Impact verdict

Medium impact. FAA airworthiness directive confirmation of fuel-nozzle coking and HPT creep has driven earlier-than-expected Leap-1A and Leap-1B overhauls, with hot/dusty operators in the Middle East and India most exposed. The Leap-1B software fix addresses a safety recommendation arising from 2025 Southwest bird-strike events. Both issues are predominantly engineering, maintenance and product-liability exposures rather than an acute loss trigger; with no insured loss amounts disclosed, insured-severity banding is constrained to medium at most and grounded in operational/maintenance impact rather than economic-scale claims.

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How we grade what we know -- Known · Reported · Uncertain. Methodology →

Intelligence ledger

Each line expands in place to its underlying sourced claim.

AI refreshed 14 Jun 2026, 20:59

Known21 lines

GE Aerospace released a Leap-1A HPT durability improvement package in 2024, now installed on 30% of the in-service fleet.▾
structured lineknown
No separate sourced-claim record is available for this line yet.
A Leap-1B durability package is expected to be completed in 2026, with operators receiving modified engines in 2027.▾
structured lineknown
No separate sourced-claim record is available for this line yet.
A Federal Aviation Administration airworthiness directive confirmed fuel nozzle coking affected at least two A320neos during flights in 2024.▾
structured lineknown
No separate sourced-claim record is available for this line yet.
A reverse bleed system to address coking has been introduced on 60% of the Leap-1A fleet.▾
structured lineknown
No separate sourced-claim record is available for this line yet.
CFM International plans to deliver upwards of 2,000 Leap engines in 2026, a 15% year-on-year increase.▾
structured lineknown
No separate sourced-claim record is available for this line yet.
GE invested $1 billion in manufacturing in 2025 and plans another $1 billion in 2026 US manufacturing investment.▾
structured lineknown
No separate sourced-claim record is available for this line yet.
GE ramped engine deliveries 25% last year, with Leap deliveries up 28%.▾
structured lineknown
No separate sourced-claim record is available for this line yet.
GE ramped engine deliveries 25% in the prior year, with Leap deliveries up 28% YoY.▾
leap_delivery_growth_2025delivery volume outlookvalid from 21 May 2026, 11:24Aviation
Market relevance: Rapid delivery growth ties to new-production warranty/liability exposure and component supply strain.
“GE ramped engine deliveries 25% last year, with Leap deliveries up 28%” — FlightGlobal · 21 May 2026, 10:00 · trade media
Supersession history: 1 prior/revised claim rows.
CFM International plans to deliver more than 2,000 Leap engines in 2026, a ~15% year-on-year increase.▾
leap_delivery_outlook_2026delivery volume outlookvalid from 21 May 2026, 11:24Aviation
Market relevance: High delivery cadence increases new-production liability and supply-chain exposure alongside retrofit programme.
“CFM International plans to deliver upwards of 2,000 Leap engines in 2026, a 15% year-on-year increase” — FlightGlobal · 21 May 2026, 10:00 · trade media
GE invested about $1 billion in US manufacturing in 2025 and plans another ~$1 billion in 2026.▾
ge_us_manufacturing_investmentoem capex outlookvalid from 21 May 2026, 11:24Aviation
Market relevance: Signals OEM financial capacity to fund retrofits and capacity expansion alongside the durability programme.
“GE invested $1 billion in manufacturing in 2025 and plans another $1 billion in 2026 US manufacturing investment” — FlightGlobal · 21 May 2026, 10:00 · trade media
In 2025 Southwest Airlines 737 Max bird-strike incidents, activation of the Leap-1B Load Reduction Device (LRD) caused fan separation and opened an oil-sump flange, allowing oil ingestion into the compressor and resulting cabin smoke.▾
lrd_bird_strike_cabin_smoke_mechanismtechnical root causevalid from 21 May 2026, 17:24Aviation
Market relevance: Defines the engineering failure mode and supports the basis for the software mitigation and NTSB recommendation.
“LRD activation can also open a flange to an oil sump and dislodge tubes supplying oil to the sump, allowing oil to enter the compressor, where it is exposed to high heat, generating smoke” — FlightGlobal · 21 May 2026, 13:49 · trade media
The Leap-1A HPT durability improvement package is installed on roughly 30% of the in-service Leap-1A fleet as of mid-2026 reporting.▾
leap_1a_hpt_durability_package_fleet_penetrationaftermarket and maintenance demandvalid from 21 May 2026, 11:24Aviation
Market relevance: Engine retrofit pace informs maintenance reserve and aftermarket exposure for Leap-1A operators.
“The durability package for Leap-1A is already installed on 30% of in-service aircraft” — FlightGlobal · 21 May 2026, 10:00 · trade media
A reverse-bleed system to address coking has been introduced on approximately 60% of the Leap-1A fleet.▾
reverse_bleed_system_fleet_penetrationretrofit mitigation progressvalid from 21 May 2026, 11:24Aviation
Market relevance: Retrofit progress on a regulator-recognised defect informs residual operational and product-liability risk.
“A reverse bleed system to address coking has been introduced on 60% of the Leap-1A fleet” — FlightGlobal · 21 May 2026, 10:00 · trade media
A separate Leap fuel nozzle coking problem, caused by heat-induced fuel evaporation after engine shutdown, has been linked to at least two A320neo in-flight events in 2024 cited in an FAA airworthiness directive.▾
leap_fuel_nozzle_coking_issueregulatory actionAviation
Market relevance: Direct airworthiness action on Leap-1A indicates regulator-recognised safety issue relevant to OEM product liability and airline operational loss.
“excessive coke accumulation on fuel nozzles due to heat-induced fuel evaporation after engines have been shut down. These deposits can restrict fuel flow and thrust – a scenario affecting at least two A320neos during flights in 2024, according to a Federal Aviation Administration airworthiness directive.” — FlightGlobal · 21 May 2026, 10:00 · trade media
Event remains at the signal stage: an engineering/programme-level watch item rather than an acute loss trigger.▾
lifecycle_status_signallifecycle classificationvalid from 21 May 2026, 17:24Aviation
Market relevance: Determines alert and materiality posture; supports medium-at-most insured-severity banding absent loss figures.
FlightGlobal · 21 May 2026, 13:49 · trade media
FlightGlobal · 21 May 2026, 10:00 · trade media
An FAA airworthiness directive confirmed that fuel-nozzle coking affected at least two A320neo aircraft during flights in 2024.▾
faa_ad_fuel_nozzle_cokingairworthiness and liability exposurevalid from 31 Dec 2024, 00:00Aviation
Market relevance: Confirms regulator-recognised defect with fleet-level maintenance and product-lliability implications.
“a scenario affecting at least two A320neos during flights in 2024, according to a Federal Aviation Administration airworthiness directive” — FlightGlobal · 21 May 2026, 10:00 · trade media
GE Aerospace is pursuing certification of a Leap-1B software update to mitigate cabin smoke risks following two Southwest Airlines bird-strike incidents in 2025 that activated the engine's Load Reduction Device (LRD), allowing oil ingestion and smoke in the cabin. The NTSB has recommended the fix and FAA, EASA and Boeing are parties to the certification process.▾
leap_1b_cabin_smoke_software_updateregulatory actionAviation
Market relevance: A separate Leap-1B airworthiness driver affecting 737 Max fleet; could touch airline hull/liability, OEM product liability and reputation loss.
“The strikes caused each engine's fan to separate from surrounding structures – an intended consequence resulting from activation of the Leap-1B's load reduction device (LRD)... LRD activation can also open a flange to an oil sump and dislodge tubes supplying oil to the sump, allowing oil to enter the compressor, where it is exposed to high heat, generating smoke.” — FlightGlobal · 21 May 2026, 13:49 · trade media
The Leap-1B HPT durability package is expected to be completed in 2026, with operators receiving modified engines from 2027.▾
leap_1b_durability_package_timelineproduct reliability riskAviation
Market relevance: Forward-looking programme schedule; relevant to forecast disruption on 737 Max operators and spare-engine demand.
“A Leap-1B durability package is expected to be completed in 2026, with operators receiving modified engines in 2027.” — FlightGlobal · 21 May 2026, 10:00 · trade media
The Leap-1A HPT durability improvement package was released in 2024 and is now installed on 30% of the in-service Leap-1A fleet.▾
leap_1a_durability_package_fleet_coverageproduct reliability riskAviation
Market relevance: Shows engineering remediation is mid-rollout; residual disruption depends on remaining 70% of fleet.
“GE Aerospace released a Leap-1A HPT durability improvement package in 2024, now installed on 30% of the in-service fleet.” — FlightGlobal · 21 May 2026, 10:00 · trade media
A reverse bleed system to address fuel nozzle coking has been introduced on 60% of the Leap-1A fleet.▾
leap_1a_reverse_bleed_coking_fix_fleet_coverageproduct reliability riskAviation
Market relevance: Indicates partial fleet remediation of an airworthiness driver, relevant to residual airline disruption and OEM exposure.
“A reverse bleed system to address coking has been introduced on 60% of the Leap-1A fleet.” — FlightGlobal · 21 May 2026, 10:00 · trade media
GE Aerospace is rolling out a high-pressure turbine (HPT) durability improvement package for CFM International Leap-1A and Leap-1B turbofans to address heat-induced blade degradation (creep).▾
leap_hpt_durability_programmeproduct reliability riskAviation
Market relevance: Aerospace engine reliability drives aftermarket, warranty, spares and product liability exposure for the manufacturer and the CFM JV.
“GE Aerospace is rolling out high-pressure turbine (HPT) durability improvement packages for CFM International Leap-1A and Leap-1B turbofan engines” — FlightGlobal · 21 May 2026, 10:00 · trade media

Reported18 lines

The Leap-1A durability package is said to double time between overhauls.▾
structured linereported
No separate sourced-claim record is available for this line yet.
Durability issues have particularly affected engines in hot and dusty regions such as the Middle East and India.▾
structured linereported
No separate sourced-claim record is available for this line yet.
GEnx-1B time-between-overhauls has improved 30% in two years to approximately 3,500 cycles.▾
structured linereported
No separate sourced-claim record is available for this line yet.
GE executives state the Leap-1A's durability during its first five years exceeds that of the CFM56 in the equivalent post-entry period.▾
structured linereported
No separate sourced-claim record is available for this line yet.
Priority suppliers increased material flow 40% year-on-year in 2025.▾
structured linereported
No separate sourced-claim record is available for this line yet.
Durability issues have particularly affected Leap engines operating in hot and dusty regions, with the Middle East and India cited as disproportionately impacted.▾
hot_dusty_operator_concentrationgeographic risk concentrationvalid from 21 May 2026, 11:24Aviation
Market relevance: Highlights regional concentration of maintenance/operational disruption relevant to carrier-specific loss exposure.
“Durability issues have particularly affected engines in hot and dusty regions such as the Middle East and India” — FlightGlobal · 21 May 2026, 10:00 · trade media
Concerns have been raised about potentially similar Leap-1A (A320neo) and Leap-1C (Comac C919) cabin smoke risks to those identified on the Leap-1B, though GE has not commented on Leap-1C durability or scope of the issue across variants.▾
leap_1a_1c_smoke_risk_concernregulatory actionAviation
Market relevance: If confirmed on Leap-1A, the smoke/LRD issue would scale materially to a much larger fleet, lifting OEM and airline exposure.
“Concerns have also been raised about potential similar risks on Leap-1A (Airbus A320neo) and Leap-1C (Comac C919) variants.” — FlightGlobal · 21 May 2026, 13:49 · trade media
Leap durability and coking problems have particularly affected engines operating in hot and dusty regions such as the Middle East and India.▾
hot_dusty_environment_concentrationunderwriting signalAviation
Market relevance: Geographic concentration informs airline fleet, business interruption and warranty exposure, particularly for Gulf/Middle East carriers.
“Durability issues have particularly affected engines in hot and dusty regions such as the Middle East and India.” — FlightGlobal · 21 May 2026, 10:00 · trade media
The GEnx-1B time-between-overhauls has improved by 30% over two years to approximately 3,500 cycles, cited by GE as a benchmark for the Leap improvement trajectory.▾
genx_tbo_improvement_benchmarkunderwriting signalAviation
Market relevance: Benchmark for prospective Leap durability improvement; useful for underwriting scenario analysis on engine reliability.
“GEnx-1B time-between-overhauls has improved 30% in two years to approximately 3,500 cycles.” — FlightGlobal · 21 May 2026, 10:00 · trade media
GE invested $1 billion in US manufacturing in 2025 and plans a further $1 billion in 2026, partly to support Leap output.▾
ge_manufacturing_investment_2025_2026underwriting signalAviation
Market relevance: Manufacturing expansion has property, supply chain and business interruption implications; ties to OEM underwriting.
“GE invested $1 billion in manufacturing in 2025 and plans another $1 billion in 2026 US manufacturing investment.” — FlightGlobal · 21 May 2026, 10:00 · trade media
Priority suppliers increased material flow 40% year-on-year in 2025 to support Leap output.▾
priority_supplier_material_flow_2025underwriting signalAviation
Market relevance: Supply-side stress could affect component reliability, with downstream implications for product liability and spares availability.
“Priority suppliers increased material flow 40% year-on-year in 2025.” — FlightGlobal · 21 May 2026, 10:00 · trade media
GE states the Leap-1A durability package is expected to roughly double the engine's time-between-overhaul interval.▾
leap_1a_tbo_extensionmaintenance cost outlookvalid from 21 May 2026, 11:24Aviation
Market relevance: If achieved, materially reduces unscheduled maintenance and AOG exposure for Leap-1A operators.
“The Leap-1A durability package is said to double time between overhauls” — FlightGlobal · 21 May 2026, 10:00 · trade media
GEnx-1B time-between-overhauls has improved roughly 30% over two years to approximately 3,500 cycles.▾
genx_1b_tbo_improvementpeer programme indicatorvalid from 21 May 2026, 11:24Aviation
Market relevance: Peer-programme TBO trajectory supports durability-programme credibility for Leap but is not a direct Leap indicator.
“GEnx-1B time-between-overhauls has improved 30% in two years to approximately 3,500 cycles” — FlightGlobal · 21 May 2026, 10:00 · trade media
GE's priority suppliers increased material flow approximately 40% year-on-year in 2025.▾
priority_supplier_material_flowsupply chain capacityvalid from 21 May 2026, 11:24Aviation
Market relevance: Supply-chain scaling underpins delivery outlook; material-flow pressure can also raise quality-risk concerns.
“Priority suppliers increased material flow 40% year-on-year in 2025” — FlightGlobal · 21 May 2026, 10:00 · trade media
CFM International plans to deliver upwards of 2,000 Leap engines in 2026, a 15% year-on-year increase.▾
cfm_leap_delivery_outlook_2026underwriting signalAviation
Market relevance: Strong Leap delivery growth keeps production liability and product recall cost exposures active across the global A320neo/737 Max fleet.
“CFM International plans to deliver upwards of 2,000 Leap engines in 2026, a 15% year-on-year increase.” — FlightGlobal · 21 May 2026, 10:00 · trade media
The Leap-1A HPT durability package is reported to double the time between overhauls compared with the pre-modification configuration.▾
leap_1a_durability_tbo_doublingunderwriting signalAviation
Market relevance: Higher TBO reduces airline maintenance cost and engine-on-wing risk; relevant to airline hull/business interruption and OEM aftermarket revenue.
“The Leap-1A durability package is said to double time between overhauls.” — FlightGlobal · 21 May 2026, 10:00 · trade media
The Leap-1B durability package is expected to be completed in 2026, with modified engines reaching operators in 2027.▾
leap_1b_durability_package_timingfleet modification schedulevalid from 21 May 2026, 11:24Aviation
Market relevance: Sets timeline for 737 Max fleet retrofit cost and disruption exposure.
“with the Leap-1B package expected to complete in 2026” — FlightGlobal · 21 May 2026, 10:00 · trade media
GE Aerospace is pursuing certification of a Leap-1B software update intended to mitigate cabin-smoke risks following 2025 Southwest Airlines 737 Max bird-strike incidents; the FAA, EASA and Boeing are engaged, with GE targeting introduction within the current year.▾
leap_1b_software_smoke_fix_certificationairworthiness and liability exposurevalid from 21 May 2026, 17:24Aviation
Market relevance: Software AD and certification timeline drive near-term retrofit planning and product-liability focus on 737 Max fleet.
“GE Aerospace is pursuing certification of a software update for the CFM International Leap-1B engine fitted to Boeing 737 Max aircraft” — FlightGlobal · 21 May 2026, 13:49 · trade media

Uncertain12 lines

Whether the Leap will fully match CFM56 long-term durability levels remains unproven.▾
structured lineuncertain
No separate sourced-claim record is available for this line yet.
GE declined to comment on durability changes for the Leap-1C used on Comac's C919.▾
structured lineuncertain
No separate sourced-claim record is available for this line yet.
The timeline for Leap engines reaching 5,000-cycle durability in Middle East operations is not confirmed.▾
structured lineuncertain
No separate sourced-claim record is available for this line yet.
Full scope of operational disruption caused by coking and HPT degradation across the global fleet is not quantified.▾
structured lineuncertain
No separate sourced-claim record is available for this line yet.
Whether the Leap family will fully match the prior-generation CFM56's long-term durability levels remains unproven.▾
cfm56_durability_parity_uncertainlong term durability uncertaintyvalid from 21 May 2026, 11:24Aviation
Market relevance: Framed uncertainty around future overhaul cadence and residual product-liability tail.
“Whether the Leap will fully match CFM56 long-term durability levels remains unproven” — FlightGlobal · 21 May 2026, 10:00 · trade media
The timeline for Leap engines to reach 5,000-cycle durability in Middle East operations has not been confirmed.▾
leap_5000_cycle_target_unconfirmedlong term durability uncertaintyvalid from 21 May 2026, 11:24Aviation
Market relevance: Unconfirmed milestone bears on long-term maintenance reserve assumptions for hot/dusty operators.
“The timeline for Leap engines reaching 5,000-cycle durability in Middle East operations is not confirmed” — FlightGlobal · 21 May 2026, 10:00 · trade media
The full scope of operational disruption caused by coking and HPT degradation across the global Leap fleet has not been quantified.▾
global_fleet_coking_disruption_unquantifiedexposure scope uncertaintyvalid from 21 May 2026, 11:24Aviation
Market relevance: Unquantified disruption limits precision of insured-severity banding; supports conservative medium ceiling.
“Full scope of operational disruption caused by coking and HPT degradation across the global fleet is not quantified” — FlightGlobal · 21 May 2026, 10:00 · trade media
GE declined to comment on durability changes for the Leap-1C variant used on the Comac C919, leaving applicability of the Leap-1A/1B retrofit programmes to Leap-1C unconfirmed.▾
leap_1c_durability_unaddressedcoverage and applicability uncertaintyvalid from 21 May 2026, 11:24Aviation
Market relevance: Leaves residual uncertainty for Leap-1C operators and supply-chain exposure tied to C919 fleet.
“GE declined to comment on durability changes for the Leap-1C used on Comac's C919” — FlightGlobal · 21 May 2026, 10:00 · trade media
The timeline for Leap engines reaching 5,000-cycle durability in Middle East operations is not confirmed.▾
leap_5000_cycle_target_middle_eastunderwriting signalAviation
Market relevance: Unconfirmed durability targets in the worst-affected region limit precise underwriting of airline fleet reliability there.
“The timeline for Leap engines reaching 5,000-cycle durability in Middle East operations is not confirmed.” — FlightGlobal · 21 May 2026, 10:00 · trade media
GE declined to comment on durability changes for the Leap-1C used on the Comac C919.▾
leap_1c_durability_no_commentunderwriting signalAviation
Market relevance: Lack of disclosure on Leap-1C limits underwriting clarity for operators and lessors exposed to the C919 platform.
“GE declined to comment on durability changes for the Leap-1C used on Comac's C919.” — FlightGlobal · 21 May 2026, 10:00 · trade media
The full scope of operational disruption caused by coking and HPT degradation across the global Leap fleet is not quantified in public reporting.▾
global_fleet_disruption_scope_unquantifiedunderwriting signalAviation
Market relevance: Absent quantified disruption, insured-severity banding relies on regulatory and OEM communications rather than incident tallies.
“Full scope of operational disruption caused by coking and HPT degradation across the global fleet is not quantified.” — FlightGlobal · 21 May 2026, 10:00 · trade media
Whether the Leap will fully match CFM56 long-term durability levels remains unproven, despite GE's stated intent and a comparison that the Leap-1A's first five years reportedly exceed CFM56's equivalent post-entry period.▾
leap_long_term_durability_match_cfm56underwriting signalAviation
Market relevance: Long-term durability is a key sensitivity for airline fleet reliability underwriting and OEM warranty exposure.
“Whether the Leap will fully match CFM56 long-term durability levels remains unproven.” — FlightGlobal · 21 May 2026, 10:00 · trade media

Geographic Zone Matches

7 active matches

  • TRIA Certified Areas
    Rule-basedConfidence 100%
  • Taiwan Strait
    Rule-basedConfidence 100%
  • Pacific Ring of Fire
    Rule-basedConfidence 100%
  • Caribbean Hurricane Zone
    Rule-basedConfidence 100%
  • United Arab Emirates (12nm coastal buffer)
    Rule-basedConfidence 100%
  • Saudi Arabia (12nm coastal buffer)
    Rule-basedConfidence 100%
  • Persian/Arabian Gulf, Gulf of Oman, Indian Ocean, Gulf of Aden and Southern Red Sea
    Rule-basedConfidence 100%

Geographic zone matches are RiskEvents spatial/analytical indicators, not coverage determinations or Lloyd's official classifications.

Affected countries

🇦🇪 United Arab Emirates🇨🇳 China🇫🇷 France🇮🇳 India🇸🇦 Saudi Arabia🇺🇸 United States

Latest developments

  • Leap-1A HPT durability retrofit is now installed on ~30% of the in-service fleet. — FlightGlobal
  • Leap-1B durability package expected to complete in 2026 with operator deliveries in 2027. — FlightGlobal
  • FAA AD confirmed fuel-nozzle coking affected at least two A320neos in 2024. — FlightGlobal
  • ~60% of Leap-1A fleet has reverse-bleed coking mitigation installed. — FlightGlobal
  • Leap-1A durability package reported to roughly double time-between-overhauls. — FlightGlobal
  • Leap-1B software fix to mitigate cabin-smoke risks is in certification with FAA, EASA and Boeing. — FlightGlobal
  • LRD activation during bird strikes allowed oil into the compressor, generating cabin smoke on 737 Max. — FlightGlobal
  • Hot/dusty operators in the Middle East and India are disproportionately exposed to Leap durability issues. — FlightGlobal

Timeline

Status Change14 Jun 2026, 21:01

Status changed to developing

evidence_trigger: corroboration >= 2

signal -> developing

Corroboration21 May 2026, 17:24

GE Aerospace is pursuing certification of a software update for the CFM International Leap-1B engine fitted to Boeing 737 Max aircraft, intended to mitigate cabin smoke risks following two Southwest Airlines bird strike incidents in 2025. The strikes activated the engine's Load Reduction Device (LRD), causing oil ingestion into the compressor and resulting smoke entering passenger cabins. The NTSB has recommended the fix, and the FAA, EASA, and Boeing are all party to the certification process. Concerns have also been raised about potential similar risks on Leap-1A (Airbus A320neo) and Leap-1C (Comac C919) variants.

Source: FlightGlobal (Trade Media) · View source

Initial Detection21 May 2026, 11:24

Initial Detection

GE Aerospace is rolling out high-pressure turbine (HPT) durability improvement packages for CFM International Leap-1A and Leap-1B turbofan engines, which power the Airbus A320neo family and Boeing 737 Max respectively. The updates address heat-induced blade degradation ('creep') and a separate fuel nozzle coking problem, both of which have forced operators to overhaul engines sooner than expected. GE executives expressed confidence that the Leap will eventually achieve durability on par with the prior-generation CFM56, drawing parallels to similar improvement trajectories seen in the GEnx and GE90 programmes. The durability package for Leap-1A is already installed on 30% of in-service aircraft, with the Leap-1B package expected to complete in 2026.

excessive coke accumulation on fuel nozzles due to heat-induced fuel evaporation after engines have been shut down. These deposits can restrict fuel flow and thrust – a scenario affecting at least two A320neos during flights in 2024, according to a Federal Aviation Administration airworthiness directive.

Source: FlightGlobal (Trade Media) · View source

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