Proving LLP remaining life at a sale.
When you sell an engine, the buyer's technical team discounts every cycle you can't prove. Remaining life without an unbroken chain behind it is remaining life you give away.
The number is easy. The proof is the deal.
Any system can show a remaining-cycles figure. At due diligence, the buyer asks a harder question: prove it — back to birth, with the release certificates — and show me the same number your CAMO acts on. If those don't line up, the discount follows.
An LLP cycle limit is absoluteunder Part-21 and Part-C. It is never reset by an overhaul, a swap, or a shop visit. A spreadsheet that "reset" cycles after an overhaul is overstating remaining life — and you'll find out at due diligence, with the buyer holding the pen.
Establish the chain — back to birth.
Remaining life is only as good as the history behind it. The delivery reports and Form 1s are ingested, the cycles extracted into a draft, and a CAMO analyst commits them against the certificate. The result is an unbroken chain from new to now — not a current-snapshot figure that starts the conversation on the back foot.
Compute once — so every number agrees.
Remaining life is computed by a single canonical formula. The LLP register, the sale data-room export, the maintenance forecast, and the fleet KPI all read that one result. There is no second spreadsheet to drift — which is exactly why the data-room number and the CAMO number are the same number.
One formula, five consumers, zero duplication. Drift can't start if there's only one source of the calculation.
Enforce the absolute limit — even against a typo.
An overhaul, a swap, or a shop visit advances the history but never resets the limit. Lifetime counters only move forward (GREATEST). A backdated entry that would lower a lifetime cycle count is rejected outright. The single legitimate rollback is a Form-1 override on a shop visit — deliberate, evidenced, and logged.
The limit is a floor the system won't let you walk below. A regression is refused, not silently saved.
The evidence travels with the number.
Every remaining-life figure carries its linked release certificates — OCR complete, AI-summarized, analyst-signed — and an immutable audit-log entry. You don't assemble a data room at the end; the data room is the audit trail you've been keeping all along.
When the buyer asks for the basis, the answer is already attached. The evidence was there before the question.
Three ways remaining life leaks at the table.
- A current-snapshot figure with no chain behind it — the buyer assumes the worst and prices the doubt.
- A spreadsheet that reset cycles at overhaul — you've quoted cycles that don't exist, and the claim lands after close.
- The data-room number and the CAMO number disagree — and trust evaporates mid-deal.
Remaining life you can prove is remaining life you keep.
The chain, one calculation, an enforced limit, and the evidence attached — that's the difference between a number you assert and a number you defend.
Bring the engine you're selling.
We'll build the back-to-birth chain with your records and show you the evidence a buyer can verify.