What was found
LT ENG. FAV FAILED PNEUMATIC HEALTH CHECK OPEN AND CLOSED SWITCHES DISAGREE. (<P>REMOVED AND REPLACED NR 1 ENGINE FAN AIR VALVE IAW AMM 36-11-16.</P>)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LT ENG. FAV FAILED PNEUMATIC HEALTH CHECK OPEN AND CLOSED SWITCHES DISAGREE. (<P>REMOVED AND REPLACED NR 1 ENGINE FAN AIR VALVE IAW AMM 36-11-16.</P>)