What was found
DURING CLIMB THROUGH FL180 WITH THE WINGSTAB SWITCH IN OFF POSSITION, WE RECIEVED A A-I WINGSTAB LEAK. CREW COMPLEATED THE A-I WINGSTAB QRH. A-I WINGSTAB CAS REMAINED ON FOR THE REMAINDER OF THE FLIGHT. NOTE THAT ALL SWITCHES ARE LEFT IN THE EMERGENCY CONDITION. IAW INSTRUCTIONS FROM CONTACT CENTER, COMPLETED THE FIM TASK 36-21-00-810-808-A - LEAKAGE IN THE RH ANTI-ICING OF THE CENTRAL FUSELAGE .. ALL CHECKED OUT NORMALLY WHEN GOING THROUGH THE OPERATIONAL CHECK OF THE WING/HORIZONTAL ICE PROTECTION SYSTEM. ALL CAS MESSAGES NORMAL. NO A-I WINGSTB LEAK CAS MESSAGE APPEARED. THE FIM SHOWS THAT AS A TRANSITORY CONDITION OF THE ENGINE PNEUMATIC INDICATING SYSTEM.