Side-by-side
Base Maintenance vs Engine MRO and Overhaul
Spec comparison for two products on Aviation Souk. Both compete in Aircraft MRO / Line Maintenance.
Aircraft MRO / Line Maintenance
Base Maintenance
by HAECO Group
Full-spectrum heavy maintenance from A- to D-checks, with 77 bays across Hong Kong and Mainland China and more than 20,000 checks delivered.
Aircraft MRO / Line Maintenance
Engine MRO and Overhaul
by Pratt & Whitney Aftermarket
OEM-performed or OEM-network shop-visit overhaul for Pratt & Whitney commercial turbofans, from induction to test-cell release.
| Cost of ownership | Base Maintenance | Engine MRO and Overhaul |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | Base Maintenance | Engine MRO and Overhaul |
|---|---|---|
| Maintenance bays | 77 | — |
| Checks delivered (cumulative) | 20,000+ | — |
| Employees (base facilities) | ~12,000 | — |
| Check types | A-check through D-check, IL, HMV | — |
| Facilities | Hong Kong, Xiamen, Jinan, Chengdu | — |
| Design approvals | CAAC DMDOR + HKCAD DOA (Xiamen) | — |
| Regulatory approvals | CAAC, HKCAD, EASA, FAA + regional authorities | — |
| Engine families | — | GTF (PW1100G-JM, PW1500G, PW1900G, PW1200G), V2500, PW4000 |
| GTF MRO network size | — | 21 authorised shops, 4 continents |
| MTU network capacity | — | Up to 600 GTF shop visits per year across all GTF variants |
| Delta TechOps capacity | — | Up to 450 GTF overhauls per year |
| Field support | — | 100+ field representatives, 60 offices, 6 continents |
| U.S. MRO investment (2026) | — | $100M+ USD |
| GTF MRO output increase | — | 30% year-on-year growth targeted (2025) |
| PW1100G-JM MRO output increase | — | 21% year-to-date (as of Nov 2025) |
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