Heavy checks (C/D)
Slot booking, work-pack pricing, on-site project management, snag triage, return-to-service.
C · Maintenance & MRO
MRO that ends on the agreed day.
ACM Aviation plans, sources and project-manages aircraft maintenance for airlines, lessors and operators — heavy checks, engine shop visits, CAMO handovers, redeliveries, cabin work — through a pre-vetted network of EASA Part 145 and Part-CAMO partners across Europe and MENA.
01
What we coordinate
Independent MRO management — not a single-hangar shop.
We are deliberately an intermediary and work with certified Part 145 stations. That keeps us independent and lets us pick the right setup for your aircraft, every time.
Engine shop visits
PRSV scope discipline, LLP strategy, used-serviceable module sourcing, residual-value modelling.
CAMO handover
Records reconciliation, maintenance programme alignment, AD/SB bridge, state-authority notifications.
End-of-lease redelivery
Lease schedule audit, half-life adjustment matrix, records package rebuild, lessor acceptance.
Line maintenance setup
Line station selection, Part 145 contract terms, AOG cover, fluids and consumables supply.
Cabin & modification programmes
STC project management, cabin refurbishment, IFE / Wi-Fi retrofit, livery re-application.
02
Check Intervals
What each check actually involves.
Indicative intervals for narrowbody and widebody operations. Exact intervals follow the type-specific Maintenance Programme approved by the operator's authority.
400–600 flight hours
A-Check
Routine line task block. General visual inspection, lubrication, filter changes, fluid top-up. Done overnight at line stations.
~1 night on ground
6–8 months
B-Check
Largely absorbed into A-check sequences on modern types. Specific repetitive inspections handled at base.
~2–3 days on ground
20–24 months / 6,000 FH
C-Check
Major inspection. Extensive structural and systems check, NDT sampling, opening of access panels, deep cleaning.
~10–20 days on ground
6–10 years
D-Check
Heaviest scheduled check. Full structural inspection, paint strip, major modification window, cabin reconfiguration option.
~30–60 days on ground
03
Engines
Engine shop visit management — scope discipline as a cost lever.
The right shop visit returns enough EGT margin for the next interval at the lowest necessary cost. Discipline on scope and LLP strategy is the 15–25% cost lever most operators leave on the table.
CFM56-5B
A320ceo
CFM56-7B
737NG
LEAP-1A
A320neo
LEAP-1B
737 MAX
V2500-A5
A320ceo
Trent 700
A330ceo
Trent 7000
A330neo
GEnx-1B
787
GE90-115B
777-300ER
PW1100G
A320neo
CF6-80C2
767 / 747-400
APU 131-9 / 901A
Common APUs
04 · Inspections & Audits
Independent inspections from a team that flew the line.
Pre-purchase inspections, mid-lease audits, redelivery readiness reviews, and operator-acceptance walk-throughs. Every report is written so your CAMO can act on it the next day.
- ·Records audit (remote + on-site)
- ·Structural & dent-map inspection
- ·Borescope of engines & APU
- ·Cabin & cockpit functional check
- ·Component sampling (LRUs)
- ·Acceptance flight when schedule allows
05 · CAMO Handover
Move continuing airworthiness invisibly.
A clean CAMO handover is invisible to the flight ops department; a messy one shows up as grounded aircraft and confused signatures. We run the project: data-room scope, records reconciliation, programme alignment, AD/SB bridge, technical-log handover, state notification.
Read the handover playbook06
Partner Network
Hangars and shops we work with.
Independent doesn't mean unconnected. We hold long-standing relationships with Part 145 hangars and engine shops across Europe and the Gulf — and we pick the right one for each project.
EU narrowbody heavy
EU widebody heavy
MENA heavy hangar
Engine shop · CFM family
Engine shop · V2500
Engine shop · GE90 / GEnx
Engine shop · Trent family
APU shop
Wheels & brakes shop
Avionics repair shop
Cabin & paint shop
Conversion shop · BCF / AEI
Heavy check coming up? Engine on watch? Let's plan it together.
We respond within one business day with a slot, a price and an honest scope.