Service difficulty report · Hpc Rotor · Boeing 757222

Difficulty date
October 28, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N520UA
Make and model
Boeing 757222
Aircraft serial
24890
Engine
Pwa PW2037
Part
Hpc Rotor
Condition
Fracture
Location
Nr 2 Engine
Part time
18,875 hours
Component
Pwa · PW2037
Stage of operation
IN
Nature of condition
C
Precautionary procedure
O

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

What was found

NR 2 ENGINE REMOVED FOR HPT T1 BLADE DISTRESS, DISCOVERED DURING BORESCOPE INSPECTION. DISASSEMBLY OF THE ENGINE REVEALED FOD DAMAGE THROUGHOUT ALL STAGES OF THE COMPRESSOR 6TH THROUGH 17. *S/D* C6 BLADES OLD STYLE RECEIVED FOD, DEBRIS FROM C6 BLADES CAUSED ADDITIONAL DAMAGE DOWNSTREAM THROUGH C17. ALL BLADES REPLACED WITH NEW AND OPERATION CHECKS NORMAL.