Maintenance reserve claims built with the agents, line by line against the lease, and sent before the deadline
Every reserve dollar claimed on time, with the lines a lessor would reject struck first.
See one case, screen by screen ↓Maintenance Reserve Claims is maintenance reserve claims software for airlines. It builds and checks the reimbursement claims an airline sends its lessor for aircraft lease maintenance reserves after an engine shop visit, landing gear overhaul, APU visit or airframe check. Seven agents open the claim when the work is released, read the shop invoice, place each line under the lease clause that pays it and strike what the lessor would reject, with the reason beside it. The analyst reviews, the engineer confirms and fleet finance approves and signs.
How to choose AI for airlines: a buyer's guide to agentic AI solutions →
Updated
Maintenance reserve claims are how an airline wins back the reserves it pays its lessors every month — supplemental rent per engine flight hour for performance restoration, per cycle for life-limited parts, per hour or month for the APU, landing gear and airframe checks. After each shop visit or check, the claim has to be built and sent before the lease's deadline. The maintenance reserve analyst gathers the shop invoice, the shop visit report, the approved workscope, the FAA Form 8130-3 release and the LLP disk sheets with their back-to-birth trace, retypes the invoice into a spreadsheet, and decides line by line what the lease's reserve schedule reimburses.
Then the lessor's technical team reads the claim looking for what to strike: QEC parts and accessories, freight and handling, foreign object damage, an optional blade upgrade, an LLP replaced early, a document missing from the pack. Each strike is dollars the airline has already paid. And the lease's claim clock keeps running — a claim that misses the deadline is waived, and the reserve stays with the lessor.
Estimated split of the 47-day median from shop invoice to claim sent, by hand and with the solution, for an engine shop visit claim.
Seven specialist agents find, read, place, strike and check every claim; finance approves each strike and signs.
Corvane Airways leases 118 aircraft from 14 lessors. Engine 2 of 737-800 N738CV — CFM56-7B ESN 892-114, leased from Northmere Aviation Capital under lease NAC-737-738 — is back from its performance restoration shop visit. Here is its maintenance reserve claim, screen by screen in the working solution: what the agents do, what they ask, and what people decide.
Dana's Today screen opens on the agents' work: the Northmere engine claim built overnight and ready for review, an airframe 6-year check on N727CV with no claim and 25 days left, a Castellan APU claim struck by $41,200 with a rebuttal drafted, and Northmere's September statement $7,918 short. Beside it, she can ask the agents about any claim, reserve, lease clause or lessor — they answer with sources and can act.
“4 things need you. The agents built the Northmere engine claim this morning, and found $1.59M of reserves not yet claimed.”
The event watcher opened claim C-2026-031 on Aug 21, the day Tamberlane Engine Services released ESN 892-114 on an FAA Form 8130-3, with the clause 4.6 deadline: Feb 17, 2027. The invoice reader read shop invoice TES-INV-26-4471 — 38 pages, 20 lines, $6,421,860 — and the lease clause agent placed nine lines under clause 4.2, the engine performance restoration reserve, for $4,403,620, and six life-limited parts under clause 4.3, the LLP reserve, for $1,700,000. The letter Northmere will receive is the screen Dana works on; the agents report in the thread beside it, and she can ask, challenge or instruct them.
“Ask about a line, a clause, the balance or the lessor…”
Five lines, $318,240, are struck in place under clause 4.5 with the reason written beside each: the QEC kit, the main engine fuel pump, the bird-strike repair to fan blades 7, 12 and 13, the premium for SB 72-1043 blades over like-for-like, and expedite freight, handling and the shop administration fee. Each has Accept strike and Restore… beside it, and the claim total falls to $6,103,620.
“X2 · Bird-strike damage is excluded — logged to the engine damage file (below the $250,000 deductible).”
Dana clicks the citation on the fuel pump line and lease NAC-737-738, Schedule 4, clause 4.5(a) opens, with the words the strike rests on highlighted: “quick engine change (QEC) components, accessories and line-replaceable units”. Every value and every agent sentence on the claim opens its source passage the same way — the invoice page, the clause, the record.
The lessor-eye checker reads the claim the way Northmere reads claims and expects one query: line 110, the HPT front shaft, replaced with 5,820 cycles left. Clause 4.3(b) allows it if the workscope's minimum build life is higher. Sam Okafor, the powerplant engineer, answers in the thread: approved workscope WS-26-0418 sets an 8,000-cycle minimum build life. The line stays in, with his answer attached.
“Line 110 stays in under clause 4.3(b), with Sam’s confirmation and the workscope page attached. Confidence 71% → 97%.”
Dana asks, “Why strike the fuel pump?” The lease clause agent answers that line 170 is an accessory, excluded under 4.5(a), and is also covered by Corvane's component support agreement with Halden, so Tamberlane should not have billed it at all. On her click it drafts credit request CR-26-0193 to Tamberlane for $58,720, waiting for her to send.
The agents draft; a person sends every claim, reply and request.
The agents read 7 documents, 214 pages, for the claim pack: the shop invoice, shop visit report, approved workscope, FAA Form 8130-3, LLP disk sheets and back-to-birth, the removal record and Schedule 4 of the lease. The clause 4.6 checklist shows 7 of 7, including Sam's engineering confirmation, and the pack goes to Northmere as a cover letter and 8 enclosures, 210 pages. Because Northmere asked for back-to-birth packs on 3 of its last 4 engine claims, the checker attached the trace for the HPC 4–9 spool before sending.
Performance restoration claims $4,403,620 against $4,562,310 on Corvane's ledger and $4,554,392 on Northmere's statement; life-limited parts claims $1,700,000 against $2,148,900. Northmere's statement is $7,918 short because it booked the engine's hours from the March 4 escalation until it came off wing on June 3 at the 2025 rate. That is raised as a separate statement query, so the claim is not held up.
Dana accepts the strikes. Sam signs the technical confirmation. Owen Brandt, the Fleet Finance Manager, approves each of the five strikes and signs the $6,103,620 claim with reason F1, “Claim complete and within the reserve balance”. Only then can Dana send it to Northmere, with the cover letter and 8 enclosures. The reply comes back into the same thread: complete, accepted in full, payment scheduled for Nov 13, 2026.
“Northmere accepted the claim as complete. Payment of $6,103,620 is scheduled for Nov 13, 2026.”
The same engine claim, seen by four of the people who carry it — what the seven weeks looked like, and what they look like now.
Seven specialist agents find, read, place, strike and check every claim; finance approves each strike and signs.
Watches release certificates, check closures and removals on 118 leased aircraft, opens a claim for every reserve event the day it qualifies, tracks each lease's claim deadline and warns the owner before it passes.
Reads shop invoices, shop visit reports, workscopes, release certificates and LLP sheets, and splits each invoice into lines with their pages.
Places each invoice line under the lease clause that makes it claimable, or proposes a strike with the clause that excludes it and the reason written out — and finds where a struck cost can be recovered instead.
Reads the claim as the lessor will, from that lessor's past queries and rejections, tests the documents against the claim clause and raises the questions only a person can answer.
Drafts the claim statement and cover letter, assembles the claim pack and keeps the letter in step with every strike and restore.
Reads lessor replies, partial payments and statements, says what changed, and drafts the answer with the clauses and records that support it.
Matches every reserve payment and lessor maintenance reserve statement to the ledger and the lease rates, and matches lessor payments to bank receipts.
Accept or restore, confirm, approve and sign. The agents propose; a named person decides.
Ask about any claim, reserve, lease clause or lessor — the agents answer with their sources, and can act.
Which reserve events are about to lapse?
Two events have no claim yet: the N727CV 6-year check, est. $1,100,000 with Northmere, deadline Nov 9 — 25 days; and the N744CV landing gear, $486,000 with Tarrant, deadline Dec 29. In 2025 two late claims lost $1.62M.
Why was the bird-strike repair struck from the Northmere claim?
Line 180, fan blades 7, 12 and 13, was damaged by the Apr 18 bird strike at DEN. Clause 4.5(b) excludes foreign object damage, and $82,300 is below the $250,000 engine deductible, so it cannot be recovered from insurance either.
Is the claim within the reserve balance?
Yes. Performance restoration: $4,403,620 against $4,562,310 on our ledger; Northmere’s statement shows $4,554,392, which still covers it. Life-limited parts: $1,700,000 against $2,148,900. The $7,918 statement gap is a separate reconciliation item.
How much did lessors reject this year?
In 2026, with the agents: $0.13M of $14.7M claimed, 0.9% — Castellan’s $41,200 and Pinecrest’s $87,000. In 2025 lessors rejected $3.09M of $41.8M, 7.4%, and $1.62M was waived for late claims.
13 screens from the working solution, on its sample data. Pick one to see it large.
How claims are found, built, checked, signed and sent are settings, and every change is on the audit trail.
| Setting | Default | Choose from |
|---|---|---|
| Warn before a claim deadline | 45 days | Step up or down, 5 days at a time, from 14 to 90 days — the claim owner and manager are warned |
| Open a claim on release | On | Locked on — the event watcher opens a claim the day a release certificate or check closure arrives |
| Strikes that need finance approval | $25,000 | Step up or down, $5,000 at a time |
| Claims that need the Fleet Finance Manager | $1,000,000 | Step up or down, $250,000 at a time, from $250,000 |
| Agents propose strikes for exclusions in the lease | On | On · Off — proposals only, a person accepts or restores each one |
| Reason codes | On | Locked on — X1–X6 strike · R1–R4 restore · F1–F3 finance approval |
| Agents may send to lessors | Off | Locked off — a person sends every claim and every reply |
| Claim clock per lease | Read from each lease | Read from each lease in the lease library — 120, 180 or 210 days in the sample leases |
Every figure is labelled: a target the solution is built to, an estimate, a typical published result, or a proven one.
“demo” = seen in the working solution, on its sample airline data (the 2025 figures are that sample airline's illustrative history) · “target” = the design goal, measured in the live solution · “estimated” = our estimate of where the days go. Lease clauses, exclusions and deadlines shown are those of the sample leases. Corvane Airways, its lessors, shops and the people named on this page are fictional — characters and sample data in the working solution.
Maintenance Reserve Claims is maintenance reserve claims software for airlines. It builds and checks the reimbursement claims an airline sends its lessor for aircraft lease maintenance reserves after an engine shop visit, landing gear overhaul, APU visit or airframe check. Seven agents open the claim when the work is released, read the shop invoice, place each line under the lease clause that pays it and strike what the lessor would reject, with the reason beside it. The analyst reviews, the engineer confirms and fleet finance approves and signs.
To get maintenance reserves reimbursement, the airline sends the lessor a claim within the lease's deadline, with the shop invoice, the shop visit report, the workscope, the release certificate (FAA Form 8130-3 or EASA Form 1) and the LLP records with back-to-birth traceability, showing which costs each reserve pays. Here the event watcher opens the claim on release with the deadline from the lease, the invoice reader turns the invoice into lines with pages, and the letter drafter assembles the claim letter and pack for a person to sign and send.
It depends on the lease. In the sample lease, clause 4.5 excludes QEC parts, accessories and line-replaceable units; foreign object, accident or insured damage; optional upgrades beyond like-for-like; freight, handling, fees and markup; and any cost recoverable under a manufacturer's or repairer's warranty. The lease clause agent proposes a strike for each with the clause and reason, and a person accepts or restores it.
Under the sample leases, a claim not submitted in time is waived, and the reserve stays with the lessor. The event watcher matches release certificates and check closures on every leased aircraft to its lease's claim clock, opens a claim the day an event qualifies, and warns the claim owner and manager 45 days before the deadline by default. In the working solution it found $1.59M of reserve events with no claim yet.
Only if the lease allows it. The sample lease reimburses a life-limited part replaced before its limit when its remaining life is below the minimum build life in the approved workscope. The lessor-eye checker reads the claim against that lessor's past queries, flags the early replacement and routes the question to the powerplant engineer. In the demo, the engineer confirmed the workscope's 8,000-cycle minimum build life for an HPT front shaft with 5,820 cycles left, and his confirmation was attached to the line.
Yes. The reserve reconciler does the maintenance reserve reconciliation: it matches every lessor statement to the reserve ledger and the lease rates, and sends each difference to the lease technical manager as a statement query. In the demo it found a lessor statement $7,918 short because hours after the March 4 escalation were booked at the 2025 rate.
Yes. The agents propose and draft; they never sign, send, accept a lessor's offer or post to the ledger. The analyst accepts or restores each strike with a reason code, the powerplant engineer signs the technical confirmation, and the Fleet Finance Manager approves strikes of $25,000 or more and signs claims of $1,000,000 or more.
The Agentic Solution Engine builds and deploys it from your requirements and documents — your leases and reserve schedules, the reserve ledger and a sample of past shop invoices and claims — and it goes live once every quality gate has passed. We will walk you through it on your own claims first.
Every lease return handed back on its date, inside budget, with every gap priced.
1-min demoAircraft Technical Records AuditEvery records gap found a year before handback, each with the page the agent checked.
1-min demoAircraft Lease ManagementEvery lease obligation tracked to its clause, so nothing surfaces first at lease end.
1-min demoWe'll run Maintenance Reserve Claims on a sample of your own past shop invoices and leases.