Service difficulty report · Turbine Blades · Boeing 757222

Difficulty date
October 16, 2010
Submitted
October 18, 2010
Operation
Air carrier
Aircraft
N548UA
Make and model
Boeing 757222
Aircraft serial
25396
Aircraft time
71,609 hours, 20,683 cycles
Engine
Pwa PW2040
Engine time
57,134 hours, 19,857 cycles
Part
Turbine Blades
Part number
PW2000
Part serial
726686
Condition
Cracked
Location
Stage 3
Part time
57,134 hours, 19,857 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

NR2 ENG STAGE 3 LPT HAS 1 EACH BLADE WITH SULFIDATION AND CRACKED BLADE AT SULFIDATION AREA. CRACK LOCATED ON CONCLAVE SIDE OF BLADE. ENG NOT SERVICEABLE IAW MM. R & R ESN 726686 WITH ESN 726538 IN POS 02 IAW AMM.