Service difficulty report · Engine · Boeing 757324

Difficulty date
October 9, 2023
Submitted
October 13, 2023
Operation
Air carrier
Aircraft
N75853
Make and model
Boeing 757324
Aircraft serial
32812
Aircraft time
63,503 hours, 20,785 cycles
Engine
Rroyce RB211535E4B3
Engine time
71,558 hours, 20,999 cycles
Part
Engine
Condition
Damaged
Location
Nr 1
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CREW REPORTED WEIGHT WAS 245K, SPEED 110KTS AT TIME OF EVENT. BRAKE TEMPS WERE AT 2 AT TIME OF DEBRIEF. THERE WHERE NO ENGINE EXCEEDENCES AND THEY DIDN''T WITNESS ANY ENGINE FLUCUATIONS. REJECTED TAKE OFF NOTED. REF LOG PAGE 5979268. #1 ENGINE SURGED. FAILED BOROSCOPE INSPECTION AND ESN 31537 IS BEING REPLACED. THIS LOG NO LONGER NEEDS TO BE OPEN. CLEARING LOGPAGE.UPON COMPLETING CREW DEBRIEF IT WAS REPORTED THAT THE #1 ENGINE WAS THE CAUSE OF THE SUSPECTED NON TYPICAL NOISE AND SUBSEQUNET RTO. OPENED OUTBOARD FAN COWL TO ACCESS GEARBOX DRIVE PAD TO TURN #1 ENGINE PER MANAGEMENT REQUEST. REF AMM 72-00-00-982-026-R00. ENGINE TURNED WITH RELATIVE EASE. NO DEFECTS NOTED. CLOSED AND LATCHED FAN COWL AFTER COMPLETION. DRIVE PAD SEAL MUST BE REMOVED AND REPLACED. BOROSCOPED #1 ENG FOUND SERVERAL HP STAGE 2 BLADES BENT AND DISTORED, REF AMM 72-00-00/601 ITEM TRANSFERRED OFF WING. REF LOG PAGE 6003991 UNDER A/C 8805 SO LOG CAN TRAVEL TO SHOP. CLEARING ON WING LOG PAGE. ESN: 31537 REF ON WIN LOG PAGE 5979268 ON A/C 0853. ENGINE EXPERIENCE SURGE CAUSING A REJECTED TAKE OFF. BOROSCOPE REVEALED SEVERAL HP STAGE 2 BLADES BENT AND DISTORTED.