As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE SURGED DURING CONSTANT POWER AT 13,000 FT, ENGINE OPERATION NORMAL AFTER SURGE. THE ENGINE NEVER ACTUALLY HAD A SURGE/STALL IT WAS A FLUCTUATING PARAMETRS SITUATION. TROUBLESHOOT PER FIM 71-06-00 FIG 102. ONE PITOT HEAD MISSING ON THE PF RAKE 3 O'CLOCK POSITION. TEMP REPAIR PER MM 77-11-04/201. ENGIEN RUN OPERATION NORMAL. (M)