As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON WALKAROUND APU SURGING 3 TIMES. GROUNDED - YES. (RESOLVED ON W/O: 1973105 TASKCARD: N/R-00002 ) PERFORMED MULTIPLE DRY MOTORS & ENGINE STARTS. COULD NOT DUPLICATE. NO FALTS FOUND. NO LEAKS FOUND. CHECKED HISTORY. PER FIM 810 SUSPECTED TO BE INTERMITTENT FALT. OPS CHECK GOOD.THIS CLEARS MEL 49-1B. PLACARDS REMOVED.