Civil Aviation Abbreviations and Acronyms

1. MMCBE
   First Class
2. MPM
   Maximum Permitted Mileage
3. MS
   Egyptair
4. MSN
   Manufacturer'S Serial Number
5. MSR
   Egyptair
6. MU
   China Eastern Airlines
7. MU
   Memo of Understanding
8. MX
   Mexicana De Aviación
9. MXA
   Mexicana De Aviación
10. NA
    National Airlines
11. NH
    All Nippon Airways Co Japan
12. NONREV
    Non-Revenue Passenger
13. NORTHWEST
    Northwest Airlines
14. NRSA
    Non-Revenue Space Available
15. NS
    Non Stop
16. NW
    Northwest Airlines
17. OC
    Operator'S Certificate
18. OK
    Czech Airlines
19. OLCI
    Online Checkzin
20. OLCI
    Online Check-In

Last updated: May 23, 2020 — Total entries: 286