The number, and how it is built
A jet engine is worth what the market will pay for it this month, less what it still needs. AEVA measures both, serial by serial, and shows the work.
Three screens
1
Tell us the engine
Family, thrust rating, serial, cycles and hours since new, hours since the last shop visit, and where it sits. If you only know the cycles, start there.
2
Grade its condition
Pick a grade, or answer seventeen plain questions about life remaining, modules, compliance and records. The guided version takes three minutes and narrows the range.
3
Read the number
The market value, the range it trades in, what set it and what moved it, the material floor underneath, and the best play ranked against the other five.
Five stages, every time
The model runs the same way for every engine. Each stage is a line on the result, with its date.
Stage 1
Material floor
Every life-limited part priced from the manufacturer's current list price and prorated by the life left in it, plus the green time still on the engine.
Stage 2
Market base
What the family trades at today, from published half-life values and the asking prices of comparable engines on the market.
Stage 3
This engine
Where your serial sits against half life, and the premium or discount that earns it.
Stage 4
Condition and market
Condition, records, region, open directives, and how much supply is chasing how much demand.
Stage 5
The range
The band the engine trades in, and the one input that would narrow it most.
Market saturation
How many engines of the type are for sale or lease, what they ask, how long they sit, and how that balance has moved. Supply against demand, read as a number.
Part-out value
Every part in the engine carries a price. The life-limited stack is prorated by the cycles left in each disc, spool and shaft, so the floor under the engine is never a guess.
Shop economics
Shop turnaround, slot waits, restoration cost and the green time still on the engine. When the next visit falls, what it costs, and what the engine is worth before and after.
Thirty years of trading
The formula is built the way an engine trader values an engine, calibrated against real transactions by people who have bought, leased and parted out these engines for three decades.
What the number is measured against
- Current manufacturer list prices for every life-limited part in the engine
- The cycles and hours left in each part, and the green time left before the next shop visit
- Engines of the type for sale and for lease, what they ask, and how long they sit
- Published half-life values and lease rates for the type, as they are revised
- Fleet in service, fleet parked, and the balance between supply and demand
- Shop turnaround, slot waits and restoration cost for the type
- Condition, records, region and open directives for this serial
How far you can take it
The free estimate is enough to know where an engine stands. Each depth adds what a decision needs.
Digital valuation
$299 per engine · Same day
The exact value and range, the evidence behind it, the full build-up, the six plays with their numbers, and the report.
Analyst review
$1,200 per engine · 3 business days
An AEVA analyst reviews the records you supply: hours and cycles, maintenance status, shop-visit history, life-limited parts, exposure and gaps. The number is adjusted and signed off.
Full technical review
$2,500 per engine · 7 business days
A comprehensive review of the technical records, discrepancies reconciled, detailed findings, and an analyst-reviewed valuation.
Questions people ask
- Why a range and not just a number?
- Because that is how engines trade. The number is where we expect this serial to clear; the range is where it reasonably can. The width comes from the quality of the evidence and from what you have told us. Add the cycles left on the limiting part and the range narrows.
- Why is my range wider than someone else's?
- The range is as wide as the evidence leaves it. A published value for the exact rating, priced comparables and a full condition assessment narrow it. Missing records or an assumed thrust rating widen it, and the result says which one to add first.
- Is this an appraisal?
- No. AEVA is decision support: the number, the range and the best play, so a decision can be made. When a counterparty needs a reviewed and signed report, the analyst review and the full technical review sit above it.
- What happens with my serial number?
- It stays with your engine and is never published. Market signals are de-identified before they are stored.

