Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
English
Spanish
G
o
o
g
l
e
|
Forvo
|
+
ops check
tech.
prueba de funcionamiento
English thesaurus
ops check
avia.
Periodic check of aircraft systems performed by the aircrew
including fuel
for safety of flight
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">
Add
|
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">
Report an error
|
Get short URL
|
Language Selection Tips