Airbus A340
Enable an AI agent to identify an Airbus A340, assess the condition and limitations of a particular airframe, and determine which proposed uses or interventions its configuration and evidence support.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Codex + Grok
Purpose and description
Enable an AI agent to identify an Airbus A340, assess the condition and limitations of a particular airframe, and determine which proposed uses or interventions its configuration and evidence support.
The Airbus A340 is a four-turbofan, twin-aisle, long-range large aeroplane family developed by Airbus as the four-engine counterpart to the A330 (shared fuselage cross-section, cockpit and much of the wing) and produced from 1991 to 2011 in the CFM International CFM56-5C-powered A340-200/300 and Rolls-Royce Trent 500-powered A340-500/600 series.
It can be Resolve an observed aircraft to an A340 variant and individual airframe, retaining conflicting identity evidence.; Screen a proposed passenger, cargo or positioning mission against the aircraft's recorded configuration and applicable limitations.; Assess compatibility with a proposed stand, hangar, towing arrangement or servicing resource.; Identify defects, overdue work or missing records that require maintenance review before a proposed use.; Compare a proposed engine replacement, cabin change or other modification with the aircraft's approved configuration.; Prepare an evidence-based preservation, return-to-service or retirement work scope for authorised review..
Distinguishing features
Check for four underwing engine installations: this separates the A340 from the twin-engine A330, although engine count alone does not establish identity. [Airbus aircraft history](https://www.airbus.com/en/newsroom/stories/2018-06-airbus-jetliners-a-standard-setting-history)
For a proposed A340-200 or A340-300 identification, compare engine identification with the CFM56-5C installation documented by Airbus; a generic CFM56 label is insufficient. [Airbus A340-200/-300 characteristics](https://aircraft.airbus.com/sites/g/files/jlcbta126/files/2024-11/AC_A340-200_300_1124.pdf)
For a proposed A340-500 or A340-600 identification, compare the installed propulsion configuration with the Trent 500 installation, distinguishing this group from the -200/-300 group. [Safran A340-500/-600 nacelle systems](https://www.safran-group.com/products-services/airbus-a340-500-600-nacelle-systems)
Resolve similar-looking A340 variants by matching measured fuselage length, wing geometry and landing-gear arrangement against the relevant Airbus drawings, then confirm the exact designation through aircraft identity records. [A340-200/-300 drawings](https://aircraft.airbus.com/sites/g/files/jlcbta126/files/2024-11/AC_A340-200_300_1124.pdf), [A340-500/-600 drawings](https://www.airbus.com/sites/g/files/jlcbta136/files/2022-08/Airbus-Commercial-Aircraft-AC-A340-500_600.pdf)
Scope
+ A340 family membership, exact variant, manufacturer serial number and registration history
+ Installed engines, aircraft systems, cabin arrangements and approved modifications
+ Aircraft mass, balance, fuel state and configuration-dependent performance limitations
+ Structural condition, maintenance exposure, defects and aircraft release evidence
+ Airport compatibility, ground servicing interfaces and preservation or retirement state
- Airbus corporate history, manufacturing business and programme economics
- Airline fleet strategy, ticket sales and commercial scheduling
- Flight plans, airspace clearances and weather as independently maintained operational objects
- Airport infrastructure and ground equipment specifications beyond their compatibility with this aircraft
- Detailed engine and component internals, linked through their installed relationships
- Crew licensing and maintenance organisation authorisations beyond evidence required for a proposed action
Characteristics
- A340 variant and certified configuration
- A340-200, A340-300, A340-500 or A340-600 family variant; exact certified designation and weight variant; unresolved Selects applicable aircraft data and prevents limits from one A340 configuration being assigned to another.
- Airframe identity
- Manufacturer serial number linked to dated registrations and identity evidence Keeps maintenance and modification history attached to the physical aircraft when registration or operator changes.
- Installed propulsion configuration
- Engine position linked to engine model, serial number, thrust rating and installation status Supports compatibility checks and assessment of the actual four-engine installation.
- Mass and balance
- kg for aircraft and load masses; centre of gravity in percent mean aerodynamic chord; timestamp and loading condition Determines whether the proposed loading fits the aircraft's applicable mass and balance envelope.
- Fuel distribution
- kg by installed tank, usable total, measurement time and uncertainty Supports endurance and balance assessment without treating total fuel quantity as sufficient evidence.
- Airport fit
- m for dimensions and clearance envelopes; aircraft configuration and applicable ground-load data Supports variant-specific stand, taxiway, hangar and servicing compatibility checks.
- Cabin and hold configuration
- Approved layout linked to installed seats, exits, hold loading provisions and modification records Defines actual passenger and cargo accommodation instead of assuming a catalogue capacity.
- Accumulated service exposure
- Flight hours, flight cycles and calendar dates, with record completeness Supports assessment of maintenance due dates and life-limited items.
- System and defect state
- Serviceable, degraded, inoperative, isolated or unknown by system; dated defect evidence Makes combinations of propulsion, control, power and other defects visible.
- Use and release status
- In service, under maintenance, stored, preserved, retired or dismantling; separate documented release status and restrictions Distinguishes physical availability from evidence that a particular movement or operation is permitted.
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 18 findings · 28 questions.
A340 identity and effectivity Establish which A340 is represented and which technical records apply to it.
Family resemblance and shared naming do not establish interchangeable configurations or limitations.
Family and airframe identification
Connect recognition evidence to a particular variant and enduring airframe identity.
Confirmed A340 identity
Record the proposed designation, serial number, registration history and evidence resolving conflicting observations.
- Which manufacturer and registration records establish this airframe's serial number and exact A340 designation? provenance
- Which engine-installation and dimensional observations corroborate that designation, and which remain inconsistent? definition
Configuration applicability
Separate the original aircraft standard from its present approved configuration.
Applicable technical baseline
Associate weight variant, modifications and installed standards with documents applicable to this serial number.
- Which weight variant, modifications and system standards are embodied on this A340? definition
- Which document revisions and effectivity statements support the limits used for this airframe? provenance
Propulsion and system capability Represent the installed four-engine arrangement and the system conditions that constrain aircraft capability.
Neither four installed engines nor a family-level systems description establishes the capability of a particular aircraft.
Four-engine installation
Track each engine position and the compatibility and condition of its installation.
Engine position readiness
Link each installed engine to its identity, rating, condition and unresolved installation restrictions.
- Which engine model, serial number and approved rating occupy each of the four positions? provenance
- Which recorded engine, nacelle or reverser defects constrain the proposed operation under applicable aircraft documents? action
Integrated aircraft systems
Record the capability of flight controls, hydraulic and electrical power, pneumatics and auxiliary power as installed.
Combined system limitations
Represent actual system availability and interactions between defects without inferring dispatchability from isolated component states.
- What control-law status and hydraulic, electrical, pneumatic and auxiliary-power availability are recorded for this A340? measurement
- Which combinations of current defects require additional restrictions or prohibit the proposed action under applicable approved procedures? action
Loading, fuel and mission envelope Connect actual cabin, hold and fuel configuration to loading and performance assessment.
An A340 family range or capacity figure cannot determine whether a particular loaded aircraft can perform a proposed mission.
Payload and balance
Represent the installed accommodation and the distribution of people, cargo and aircraft mass.
Approved loading condition
Assess the proposed load against the actual layout, compartment restrictions, mass limits and centre-of-gravity envelope.
- Which approved cabin and hold arrangements define this A340's usable seats, loading positions and local load limits? provenance
- What are the proposed zero-fuel, takeoff and landing masses and corresponding centres of gravity, and where do they lie within the applicable envelopes? measurement
Fuel and performance
Connect installed fuel arrangements and system condition with mission-specific performance evidence.
Supported mission capability
Record tank quantities and restrictions alongside the assumptions and approved calculations supporting a proposed mission.
- Which fuel tanks are installed and usable, what quantity is recorded in each, and what transfer or balance restrictions apply? measurement
- Which applicable performance calculations support the proposed payload and route under the actual runway, weather, reserve and diversion assumptions? action
Airport fit and ground handling Represent the geometric, ground-load and service interfaces required to handle the particular A340.
A stand or handling arrangement suitable for one A340 variant must be checked against the dimensions and configuration of another.
Clearance and ground loads
Connect variant geometry and landing-gear loading to the proposed ground environment.
Verified ground envelope
Record the evidence supporting taxi, stand and hangar fit at the intended mass and configuration.
- Which applicable drawings establish this A340's wing, tail, engine and turning-clearance envelopes? provenance
- Do the proposed route, pavement, stand and hangar accommodate those envelopes and the aircraft's actual ground loading? boundary
Movement and service interfaces
Define aircraft-side requirements for towing, support equipment and servicing.
Compatible ground intervention
Associate a proposed intervention with suitable equipment, access locations and applicable aircraft handling instructions.
- Which towing attachment, steering restrictions, service connections and access heights apply to this A340 configuration? definition
- What equipment compatibility and aircraft preparation evidence is required before the proposed towing, jacking or servicing action? action
Continued airworthiness and lifecycle Represent accumulated exposure, maintenance findings and the evidence supporting service, storage or retirement decisions.
A340 identity and apparent completeness cannot establish structural condition, maintenance currency or readiness after storage.
Structural and maintenance condition
Connect service exposure and physical findings to the maintenance requirements applicable to the airframe.
Substantiated maintenance state
Record hours, cycles, repairs, inspection findings and outstanding requirements with traceable evidence.
- What flight-hour, cycle and calendar records support the maintenance status of this A340 and its tracked installed components? provenance
- Which structural findings, repairs, life limits, mandatory actions or inspection deadlines remain unresolved for its exact configuration? boundary
Service, storage and retirement
Distinguish physical lifecycle state from documented permission for a particular use or transition.
Evidenced lifecycle transition
Identify preservation history, removed equipment, outstanding work and release evidence needed for the proposed next state.
- What records establish this A340's present service or storage state, preservation history and removed or inhibited equipment? provenance
- Which applicable work scope, inspections and authorised releases are required for its proposed return to service, restricted movement or dismantling? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Kinds and varieties
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- A340-200 (short-fuselage, original long-range series)
- A340-300 (baseline and most-produced series, including later higher-weight Enhanced builds)
- A340-500 (ultra-long-range, Trent 500)
- A340-600 (stretched high-capacity, Trent 500; among the longest passenger fuselages flown)
- ACJ340 / VIP and head-of-state interiors
- Type-certificate dash-number subtypes (e.g. A340-211, A340-313, A340-541, A340-642) that encode engine, weight and customer variant
- Which of these kinds and varieties hold for the sense of Airbus A340 this model covers, and on what evidence? provenance
Identifiers and schemes
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Wikidata - Q6437 - Item for the A340 family.
- ICAO Doc 8643 type designator - A342 | A343 | A345 | A346 - A340-200, -300, -500 and -600 respectively; the codes used in flight plans.
- IATA aircraft type code - 342 | 343 | 345 | 346 - Schedule, slot and SSIM codes corresponding to the four series.
- Airbus model designation - A340-2xx | A340-3xx | A340-5xx | A340-6xx - Third digit is the engine/weight/customer variant on the type certificate (e.g. A340-313, A340-642).
- EASA type certificate - EASA.A.015 - Single TCDS covering the A330 and A340 families.
- Airbus manufacturer serial number (MSN) - integer MSN in the shared A330/A340 production sequence - Airframe identity; the number space is not exclusive to the A340.
- Which of these identifiers and schemes hold for the sense of Airbus A340 this model covers, and on what evidence? provenance
Standards and regulation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- EASA CS-25 (Large Aeroplanes) - European Union Aviation Safety Agency; TCDS EASA.A.015 is the current European type certificate for the A330/A340 family
- JAR-25 - Joint Aviation Authorities (original European certification basis at 1993 entry into service)
- 14 CFR Part 25 - Federal Aviation Administration (US type validation of the A340)
- ICAO Annex 8, Airworthiness of Aircraft - International Civil Aviation Organization
- ICAO Annex 16 Volumes I and II (aircraft noise and engine emissions) - International Civil Aviation Organization
- ICAO Doc 8643, Aircraft Type Designators - International Civil Aviation Organization
- ICAO Annex 6, Operation of Aircraft - International Civil Aviation Organization (operator rules applying to the type in service)
- Which of these standards and regulation hold for the sense of Airbus A340 this model covers, and on what evidence? provenance
Real-world use
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Long-haul scheduled passenger service on thin and ultra-long routes; historical mainline operators included Lufthansa, Air France, Iberia, Virgin Atlantic, Singapore Airlines, Cathay Pacific, South African Airways, Etihad, Qatar Airways, Thai Airways and Air Canada.
- Ultra-long-haul nonstop flying on the A340-500 (notably Singapore-Newark and other polar/transpacific sectors that four engines made straightforward before long-range twins took ETOPS-330).
- Government, military VIP and head-of-state transport (Luftwaffe and French government A340s; ACJ340 corporate conversions).
- ACMI, charter and Hajj lift after mainline retirement, using remaining high-MTOW -300/-600 airframes.
- Late remaining commercial flying after about 2020 concentrated with Iranian carriers (sanctions limiting access to A350/777 replacements) and a few specialist operators; retired frames are stored or parted out for CFM56-5C, Trent 500 and A330/A340-common spares.
- Which of these real-world use hold for the sense of Airbus A340 this model covers, and on what evidence? provenance
Typical measurements
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- overall length - 59.4-75.4 - m
- wingspan - 60.30-63.45 - m
- maximum take-off mass - 253500-380000 - kg
- design range in typical three-class layout - 12400-16700 - km
- typical two- or three-class seating (in-service layouts, not certified maximum) - 239-380 - passengers
- cruise Mach number - 0.82-0.83 - Mach
- take-off thrust per engine (four engines) - 139-267 - kN
- usable fuel capacity (family span) - about 135000-215000 - L
- Which of these typical measurements hold for the sense of Airbus A340 this model covers, and on what evidence? provenance
Failure modes and hazards
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Runway overrun on a wet or contaminated runway after a high-energy landing; Air France Flight 358 (A340-300, Toronto Pearson, 2005) is the type's best-known hull-loss example (no fatalities).
- Tailstrike on rotation or landing, especially on the long-fuselage A340-600; Airbus added tailstrike-prevention flight-control laws for that series.
- Engine failure or severe damage: the aeroplane can continue on three engines, but a second-engine loss over remote (oceanic/polar) airspace still imposes drift-down, fuel and diversion constraints even though the type is not ETOPS-limited as a twin.
- Fuel leak, pump failure or imbalance across a four-engine, multi-tank system, including centre-wing-tank flammability addressed industry-wide by SFAR 88 / inerting programmes.
- Structural fatigue, corrosion and landing-gear wear on ageing high-hour airframes (wing, centre section, body gear on -500/-600).
- Rejected-take-off brake and tyre energy at high MTOW on the -500/-600.
- Product-level economic failure versus long-range twins: four-engine fuel burn, not a unique structural defect, drove early retirement once A330/777/A350 ETOPS performance closed the original quad-jet case.
- Which of these failure modes and hazards hold for the sense of Airbus A340 this model covers, and on what evidence? provenance
Regional variation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- ICAO flight-plan type (A343) versus IATA schedule code (343); the same airframe is named differently in ATC and in airport slots.
- No significant US major-airline scheduled service (Northwest's order was cancelled); the commercial market was Europe, Asia-Pacific, the Middle East, Africa and the CIS.
- After the 2010s twin replacement wave, remaining passenger use clustered in Iran (sanctions) and with a few ACMI/charter operators, while European and East Asian majors retired the type.
- Spoken operational name "A three-forty" in English versus "A trois-cent-quarante" in French Airbus/operator usage.
- ICAO Annex 16 Chapter 3/4 noise and airport charging regimes affect European night/slot access more tightly than some other regions for the remaining fleet.
- Which of these regional variation hold for the sense of Airbus A340 this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Airbus A330-200/300 - Same family fuselage, cockpit and much of the wing; A330-300 is essentially the same length as A340-300. Count wing engines: two on the A330, four on the A340.
- Airbus A350-900/1000 - Later long-range twin with a composite wing, different fuselage section and cockpit glazing, and no outboard engines.
- Boeing 777-200ER/300ER - Competing long-haul wide-body but a twin; six-wheel main bogies versus the A340's four-wheel mains (plus a centre-line body gear on the -500/-600).
- Boeing 747-400/8 - Also four wing engines, but identified by the upper-deck hump and a larger, different fuselage.
- Airbus A380 - Four engines and a full-length double deck with a much larger cross-section; not a single-deck long-thin hauler.
- McDonnell Douglas MD-11 - Same-era long-range wide-body, but a trijet with a tail-mounted engine rather than four wing engines.
- Ilyushin Il-96 - Four-engine wide-body of similar role but Soviet/Russian design (PS-90 or PW2000), different wing, cockpit and systems; not an Airbus family member.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of Airbus A340 this model covers, and on what evidence? provenance
Sources
- Airbus A340 - Wikipedia (Wikimedia Foundation) - Family identity, series split (-200/-300/-500/-600), production span, operators and the Toronto AF358 hull-loss as a known overrun case.
- A340 Airplane Characteristics for Airport Planning - Airbus - Published lengths, spans, maximum weights, engine options and airport-planning quantities for each series.
- Type Certificate Data Sheet EASA.A.015 (A330 and A340) - European Union Aviation Safety Agency - Certification identity of the family, approved models/engines, and airworthiness limitations that define the type.
- Doc 8643, Aircraft Type Designators - International Civil Aviation Organization - ICAO type designators A342, A343, A345 and A346 as the operational names of the four series.
What the second pass must settle
- Does an existing Vercy world model already own the Airbus A340 concept, requiring this registry entry to link to that publication?
- Which authoritative certification records establish the complete set of A340 designations, weight variants and serial-number effectivities to represent?
- Which variant-specific fuel-transfer, balance-control and landing-gear differences materially change the model's required observations and action boundaries?
- How should approved VIP interiors, special-purpose modifications and altered cargo arrangements be represented within this single registry entry?
- Which current aircraft and operator records are available to establish maintenance, defect-deferral, storage and release status, and how should conflicting or missing evidence block unsupported conclusions?