What was found
LEFT ENG VIBS REACHED 2.8 REDUCED THRUST AND VIBS STAYED BELOW 2.5 REF FIM 71-05-00-815-808-ROO, BLOCKS 1, 2 & 3 #1 ENG EXAMINATION SHOWED NO ANOMOLIES. PER BLOCK 4, WITH VIBE AT 2.8 UNITS, ENG IS OK FOR SVC BUT VIBRATION SURVEY TEST 6 MUST BE DONE NLT 5 FLTS. COMPLETED THRU STEP D.(1) ANNULUS SEALING STRIP POSITIONING. ACCOMPLISHED TEST NO. 6, VIBRATION SURVEY TEST IAW MM 71-00-00-715-327-R03 FROM STEP D2 TO END. HIGHEST BROADBAND VIBRATION NOTED WAS 1.4 UNITS. WITHIN SERVICABLE LIMITS, NO FURTHER ACTION REQUIRED.