As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT WITH WING & ENGINE ANTI ICE ON GOT A NR 1 MANFOLD FAIL ALERT. COMPLIED WITH QRH AND RTB. TROUBLESHOT PER FIM CH 36-23 FOUND MANIFOLD FAULT INDICATOR SET (LEFT WING PRESSURE SW SHOWN) SWITCH WOULD NOT RESET. REMOVED AND REPLACED PRESS SWITCH IAW MM CH 36-23-03-4. OPS CHECK NORMAL.