SDR 97ZZZX1059

Service difficulty report · Stator Vane · Boeing 757*

Difficulty date
February 18, 1997
Submitted
March 26, 2000
Operation
General aviation
Make and model
Boeing 757*
Engine
Pwa PW2040
Part
Stator Vane
Part number
1B4790
Condition
Failed
Location
Hpc Module
Part time
16,952 hours
Stage of operation
IN
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

ENGINE WAS IN-FLIGHT, SHUT DOWN. DISASSEMBLY INSPECTION REVEALED ONE LIBERATED 10TH STAGE STATOR VANE AT THE CONVEX END OF ONE QUADRANT AT 9:00. THREE ADDITIONAL VANES IN THE SAME CLUSTER OF FIVE ARE FRACTURED THROUGH AT THE OUTSIDE DIAMETER SHROUD VANE BRAZE FILLET. METALLURIGCAL ANALYSIS OF THE 10TH STATOR AND 11TH BLADES IS BEING CONDUCTED BY PRATT AND WHITNEY MERL TO VERIFY FAILURE.