ISCO-08 7232
Aircraft engine mechanics and repairers
21.4%
ADI · 291st of 433 · 95% interval 9.7–35.3
An AI agent can at least partly carry out 21.4% of the task time of aircraft engine mechanics and repairers, and finish 0.4% alone. The barrier that holds most of the rest back is access to the systems the work runs on.
ADI · partial or full21.4%
291st of 433 · interval 9.7–35.3
ADI3 · full delegation0.4%
185th of 433 · interval 0.0–1.2
ADIs · share of time22.7%
290th of 433 · interval 17.1–29.4
Evidence60
task statements rated by two models and weighted by importance and frequency. World employment: 1.1 million.
Task weight by level
How the tasks rate
L0No meaningful role · 51.6%L1Augmentation · 27.1%L2Partial delegation · 21.0%L3Full delegation · 0.3%
Barriers
What stops the agent
Share of task weight flagged by each barrier; a task can carry several.
60 task statements, heaviest first
| Task statement (O*NET occupation) | Weight | Level | Sonnet · Haiku | Share | Human time | Barriers |
|---|---|---|---|---|---|---|
| Read and interpret maintenance manuals, service bulletins, and other specifications to determine the feasibility and method of repairing or replacing malfunctioning or damaged components.Aircraft Mechanics and Service Technicians | 4.3% | L2 | L2L2 | 62% | 52 min | Accountability, Access to systems |
| Inspect completed work to certify that maintenance meets standards and that aircraft are ready for operation.Aircraft Mechanics and Service Technicians | 3.8% | L1 | L1L2 | 28% | 1.3 h | Physical presence, Accountability, Access to systems |
| Maintain repair logs, documenting all preventive and corrective aircraft maintenance.Aircraft Mechanics and Service Technicians | 3.7% | L2 | L2L2 | 58% | 30 min | Accountability, Access to systems |
| Conduct routine and special inspections as required by regulations.Aircraft Mechanics and Service Technicians | 3.6% | L1 | L1L2 | 22% | 3.0 h | Physical presence, Accountability, Access to systems |
| Replace or repair worn, defective, or damaged components, using hand tools, gauges, and testing equipment.Aircraft Mechanics and Service Technicians | 3.5% | L0 | L0L1 | 8% | 1.8 h | Physical presence, Accountability, Access to systems |
| Examine and inspect aircraft components, including landing gear, hydraulic systems, and deicers to locate cracks, breaks, leaks, or other problems.Aircraft Mechanics and Service Technicians | 3.4% | L0 | L0L1 | 12% | 1.3 h | Physical presence, Accountability, Access to systems |
| Inspect airframes for wear or other defects.Aircraft Mechanics and Service Technicians | 3.3% | L1 | L1L1 | 18% | 1.8 h | Physical presence, Accountability, Access to systems |
| Read and interpret pilots' descriptions of problems to diagnose causes.Aircraft Mechanics and Service Technicians | 3.1% | L2 | L2L2 | 60% | 20 min | Accountability, Access to systems |
| Service and maintain aircraft and related apparatus by performing activities such as flushing crankcases, cleaning screens, and or moving parts.Aircraft Mechanics and Service Technicians | 3.0% | L0 | L0L1 | 6% | 1.3 h | Physical presence, Accountability, Access to systems |
| Inventory and requisition or order supplies, parts, materials, and equipment.Aircraft Mechanics and Service Technicians | 3.0% | L2 | L2L2 | 58% | 52 min | Physical presence, Accountability, Access to systems |
| Measure parts for wear, using precision instruments.Aircraft Mechanics and Service Technicians | 3.0% | L1 | L1L2 | 22% | 25 min | Physical presence, Accountability, Access to systems |
| Check for corrosion, distortion, and invisible cracks in the fuselage, wings, and tail, using x-ray and magnetic inspection equipment.Aircraft Mechanics and Service Technicians | 2.9% | L0 | L0L1 | 15% | 3.0 h | Physical presence, Accountability, Access to systems |
| Assemble and install electrical, plumbing, mechanical, hydraulic, and structural components and accessories, using hand or power tools.Aircraft Mechanics and Service Technicians | 2.9% | L0 | L0L1 | 6% | 2.8 h | Physical presence, Accountability, Access to systems |
| Test operation of engines and other systems, using test equipment, such as ignition analyzers, compression checkers, distributor timers, or ammeters.Aircraft Mechanics and Service Technicians | 2.8% | L1 | L1L1 | 20% | 1.1 h | Physical presence, Accountability, Access to systems |
| Maintain, repair, and rebuild aircraft structures, functional components, and parts, such as wings and fuselage, rigging, hydraulic units, oxygen systems, fuel systems, electrical systems, gaskets, or seals.Aircraft Mechanics and Service Technicians | 2.6% | L0 | L0L1 | 14% | 5.5 h | Physical presence, Accountability, Access to systems |
Show the other 45 tasks
| Task statement (O*NET occupation) | Weight | Level | Sonnet · Haiku | Share | Human time | Barriers |
|---|---|---|---|---|---|---|
| Clean, refuel, and change oil in line service aircraft.Aircraft Mechanics and Service Technicians | 2.5% | L0 | L0L0 | 4% | 1.4 h | Physical presence, Accountability, Access to systems |
| Communicate with other workers to coordinate fitting and alignment of heavy parts, or to facilitate processing of repair parts.Aircraft Mechanics and Service Technicians | 2.5% | L1 | L1L2 | 35% | 25 min | Physical presence, Trust and care, Access to systems |
| Listen to operating engines to detect and diagnose malfunctions, such as sticking or burned valves.Aircraft Mechanics and Service Technicians | 2.5% | L0 | L1L0 | 10% | 30 min | Physical presence, Accountability, Access to systems |
| Obtain fuel and oil samples and check them for contamination.Aircraft Mechanics and Service Technicians | 2.3% | L0 | L0L1 | 8% | 30 min | Physical presence, Accountability, Access to systems |
| Spread plastic film over areas to be repaired to prevent damage to surrounding areas.Aircraft Mechanics and Service Technicians | 2.3% | L0 | L0L0 | 2% | 15 min | Physical presence |
| Measure the tension of control cables.Aircraft Mechanics and Service Technicians | 2.2% | L1 | L1L1 | 12% | 35 min | Physical presence, Accountability, Access to systems |
| Examine engines through specially designed openings while working from ladders or scaffolds, or use hoists or lifts to remove the entire engine from an aircraft.Aircraft Mechanics and Service Technicians | 2.1% | L0 | L0L1 | 8% | 3.5 h | Physical presence, Accountability, Access to systems |
| Remove or cut out defective parts or drill holes to gain access to internal defects or damage, using drills and punches.Aircraft Mechanics and Service Technicians | 2.0% | L0 | L0L1 | 6% | 45 min | Physical presence, Accountability, Access to systems |
| Clean engines, sediment bulk and screens, and carburetors, adjusting carburetor float levels.Aircraft Mechanics and Service Technicians | 2.0% | L0 | L0L1 | 6% | 1.4 h | Physical presence, Accountability, Access to systems |
| Locate and mark dimensions and reference lines on defective or replacement parts, using templates, scribes, compasses, and steel rules.Aircraft Mechanics and Service Technicians | 2.0% | L0 | L0L1 | 10% | 30 min | Physical presence, Accountability, Access to systems |
| Modify aircraft structures, space vehicles, systems, or components, following drawings, schematics, charts, engineering orders, and technical publications.Aircraft Mechanics and Service Technicians | 1.9% | L1 | L1L2 | 21% | 3.0 h | Physical presence, Accountability, Access to systems |
| Accompany aircraft on flights to make in-flight adjustments and corrections.Aircraft Mechanics and Service Technicians | 1.9% | L0 | L0L0 | 4% | 3.0 h | Physical presence, Accountability, Trust and care, Access to systems |
| Reassemble engines following repair or inspection and reinstall engines in aircraft.Aircraft Mechanics and Service Technicians | 1.9% | L0 | L0L1 | 11% | 14 h | Physical presence, Accountability, Access to systems |
| Remove or install aircraft engines, using hoists or forklift trucks.Aircraft Mechanics and Service Technicians | 1.8% | L0 | L0L0 | 5% | 7.0 h | Physical presence, Accountability, Access to systems |
| Determine repair limits for engine hot section parts.Aircraft Mechanics and Service Technicians · supplemental task | 1.8% | L2 | L2L2 | 48% | 1.8 h | Physical presence, Accountability, Access to systems |
| Install and align repaired or replacement parts for subsequent riveting or welding, using clamps and wrenches.Aircraft Mechanics and Service Technicians | 1.8% | L0 | L0L1 | 7% | 1.3 h | Physical presence, Accountability, Access to systems |
| Fabricate defective sections or parts, using metal fabricating machines, saws, brakes, shears, and grinders.Aircraft Mechanics and Service Technicians | 1.5% | L0 | L0L1 | 12% | 1.8 h | Physical presence, Accountability, Access to systems |
| Clean, strip, prime, and sand structural surfaces and materials to prepare them for bonding.Aircraft Mechanics and Service Technicians | 1.5% | L0 | L0L1 | 6% | 1.1 h | Physical presence, Accountability, Access to systems |
| Disassemble engines and inspect parts, such as turbine blades or cylinders, for corrosion, wear, warping, cracks, and leaks, using precision measuring instruments, x-rays, and magnetic inspection equipment.Aircraft Mechanics and Service Technicians · supplemental task | 1.4% | L0 | L0L1 | 14% | 5.0 h | Physical presence, Accountability, Access to systems |
| Remove, inspect, repair, and install in-flight refueling stores and external fuel tanks.Aircraft Mechanics and Service Technicians · supplemental task | 1.4% | L1 | L1L1 | 12% | 5.0 h | Physical presence, Accountability, Access to systems |
| Trim and shape replacement body sections to specified sizes and fits and secure sections in place, using adhesives, hand tools, and power tools.Aircraft Mechanics and Service Technicians · supplemental task | 1.3% | L0 | L0L1 | 4% | 2.5 h | Physical presence, Accountability, Access to systems |
| Prepare and paint aircraft surfaces.Aircraft Mechanics and Service Technicians · supplemental task | 1.1% | L0 | L0L1 | 9% | 4.0 h | Physical presence, Accountability, Access to systems |
| Cure bonded structures, using portable or stationary curing equipment.Aircraft Mechanics and Service Technicians · supplemental task | 1.0% | L0 | L0L1 | 12% | 2.5 h | Physical presence, Accountability, Access to systems |
| Monitor employees' work levels and review work performance.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.5% | L2 | L2L2 | 52% | 1.5 h | Physical presence, Accountability, Trust and care, Access to systems |
| Determine schedules, sequences, and assignments for work activities, based on work priority, quantity of equipment, and skill of personnel.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.5% | L2 | L2L2 | 65% | 1.0 h | Access to systems |
| Inspect and monitor work areas, examine tools and equipment, and provide employee safety training to prevent, detect, and correct unsafe conditions or violations of procedures and safety rules.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.5% | L1 | L1L2 | 28% | 1.5 h | Physical presence, Accountability, Trust and care, Access to systems |
| Inspect, test, and measure completed work, using devices such as hand tools or gauges to verify conformance to standards or repair requirements.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.5% | L1 | L1L1 | 15% | 30 min | Physical presence, Accountability, Access to systems |
| Monitor tool and part inventories and the condition and maintenance of shops to ensure adequate working conditions.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.5% | L2 | L2L2 | 42% | 1.0 h | Physical presence, Access to systems |
| Requisition materials and supplies, such as tools, equipment, or replacement parts.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.4% | L2 | L2L2 | 70% | 38 min | Access to systems |
| Perform skilled repair or maintenance operations, using equipment such as hand or power tools, hydraulic presses or shears, or welding equipment.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.4% | L0 | L0L0 | 4% | 1.5 h | Physical presence, Access to systems |
| Compute estimates and actual costs of factors such as materials, labor, or outside contractors.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.4% | L2 | L2L2 | 68% | 1.8 h | Access to systems |
| Examine objects, systems, or facilities and analyze information to determine needed installations, services, or repairs.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.4% | L1 | L1L2 | 38% | 1.3 h | Physical presence, Accountability, Access to systems |
| Interpret specifications, blueprints, or job orders to construct templates and lay out reference points for workers.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.4% | L1 | L1L2 | 32% | 1.0 h | Physical presence |
| Participate in budget preparation and administration, coordinating purchasing and documentation and monitoring departmental expenditures.First-Line Supervisors of Mechanics, Installers, and Repairers · supplemental task | 0.4% | L2 | L2L2 | 60% | 3.0 h | Accountability, Access to systems |
| Confer with personnel, such as management, engineering, quality control, customer, or union workers' representatives, to coordinate work activities, resolve employee grievances, or identify and review resource needs.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.4% | L2 | L2L2 | 38% | 1.0 h | Trust and care, Access to systems |
| Develop or implement electronic maintenance programs or computer information management systems.First-Line Supervisors of Mechanics, Installers, and Repairers · supplemental task | 0.4% | L2 | L2L2 | 58% | 6.0 h | Access to systems |
| Counsel employees about work-related issues and assist employees to correct job-skill deficiencies.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.4% | L1 | L1L2 | 35% | 52 min | Physical presence, Trust and care, Access to systems |
| Compile operational or personnel records, such as time and production records, inventory data, repair or maintenance statistics, or test results.First-Line Supervisors of Mechanics, Installers, and Repairers · supplemental task | 0.3% | L3 | L3L3 | 82% | 1.3 h | Access to systems |
| Meet with vendors or suppliers to discuss products used in repair work.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.3% | L1 | L1L2 | 32% | 1.0 h | Trust and care, Access to systems |
| Develop, implement, or evaluate maintenance policies and procedures.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.3% | L2 | L2L2 | 58% | 4.0 h | Accountability, Trust and care, Access to systems |
| Review, evaluate, accept, and coordinate completion of work bid from contractors.First-Line Supervisors of Mechanics, Installers, and Repairers · supplemental task | 0.3% | L2 | L2L2 | 55% | 2.0 h | Physical presence, Accountability, Trust and care, Access to systems |
| Conduct or arrange for worker training in safety, repair, or maintenance techniques, operational procedures, or equipment use.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.3% | L2 | L2L2 | 48% | 2.5 h | Physical presence, Accountability, Trust and care, Access to systems |
| Design equipment configurations to meet personnel needs.First-Line Supervisors of Mechanics, Installers, and Repairers · supplemental task | 0.3% | L2 | L2L2 | 60% | 2.0 h | Access to systems |
| Recommend or initiate personnel actions, such as hires, promotions, transfers, discharges, or disciplinary measures.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.2% | L2 | L2L2 | 50% | 1.5 h | Accountability, Trust and care, Access to systems |
| Investigate accidents or injuries and prepare reports of findings.First-Line Supervisors of Mechanics, Installers, and Repairers | 0.2% | L2 | L2L2 | 45% | 4.0 h | Physical presence, Accountability, Trust and care, Access to systems |
Level: consensus of the two models (the lower level when they disagree). Share: part of the task’s working time an agent could take over. Human time: minutes a competent person needs for one instance, as estimated by the models.
Against other measures
Exposure is not delegation
| Measure | Value | Percentile |
|---|---|---|
| ADI (this index) | 21.4% | 33 |
| Eloundou et al. (2024), GPT exposure β | 0.199 | 34 |
| Felten et al. (2021), AI occupational exposure | -0.602 | 36 |
| Webb (2020), AI patent exposure | 44.5 | 35 |
| Eisfeldt et al. (2026), generative AI exposure | 0.023 | 16 |
| Anthropic Economic Index, observed use | 0.008 | 40 |
Earlier indices measure whether AI can touch a task; ADI measures how much of it an agent can carry out from a goal. – : the source does not cover this occupation.
Same sub-major group (72)
Neighbouring occupations
| Occupation | ADI | % |
|---|---|---|
| Toolmakers and related workers 7222 | 29.6 | |
| Bicycle and related repairers 7234 | 28.2 | |
| Metal working machine tool setters and operators 7223 | 17.4 | |
| Sheet-metal workers 7213 | 14.8 | |
| Agricultural and industrial machinery mechanics and repairers 7233 | 14.7 | |
| Structural-metal preparers and erectors 7214 | 10.5 | |
| Welders and flamecutters 7212 | 9.9 | |
| Blacksmiths, hammersmiths and forging press workers 7221 | 9.1 | |
| Riggers and cable splicers 7215 | 7.9 | |
| Motor vehicle mechanics and repairers 7231 | 7.1 | |
| Metal polishers, wheel grinders and tool sharpeners 7224 | 4.1 | |
| Metal moulders and coremakers 7211 | 2.3 |
Dashed line: aircraft engine mechanics and repairers (21.4%).
Cite this record
Text
Espinal Maya, Cristian, and Santiago Jiménez Londoño. 2026. ADI v2026.1: Agent Delegability Index data, code and MCP server. Zenodo. https://doi.org/10.5281/zenodo.23552918. Record: Aircraft engine mechanics and repairers (ISCO-08 7232), https://balamlabs.org/adi/occupations/7232
BibTeX
@misc{espinal2026adidata,
title = {{ADI} v2026.1: Agent Delegability Index data, code and {MCP} server},
author = {Espinal Maya, Cristian and Jim{\'e}nez Londo{\~n}o, Santiago},
year = {2026},
publisher = {Zenodo},
version = {v2026.1},
doi = {10.5281/zenodo.23552918},
url = {https://doi.org/10.5281/zenodo.23552918},
note = {Record: Aircraft engine mechanics and repairers (ISCO-08 7232)}
}Machine-readable
The same record as static JSON, with its citation: /adi/v2026.1/isco/7232.json.