SDR 95ZZZX1521

Service difficulty report · Strap · Gulstm G1159

Difficulty date
February 21, 1995
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N58JF
Make and model
Gulstm G1159
Aircraft serial
65
Engine
Rroyce SPEY5118
Part
Strap
Part number
JR21959
Condition
Fractured
Location
Bleed Valve
Part time
13,679 hours
Stage of operation
TO
Nature of condition
R
Precautionary procedure
C, D

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

What was found

ENGINE WOULD NOT DEVELOP TAKEOFF THRUST. BLEED VALVE STRAP FOUND FRACTURED. AN EVALUATION (CONDITION REPORT) INDICATES FAILURE DUE TO FLUTTER AND HIGH-CYCLE FATIGUE BROUGHT ABOUT BY EXCESSIVE LOADING OF ONE OR MORE BLEED VALVE SPHERICAL BEARINGS. THIS APPEARS TO BE AN ISOLATED INCIDENT. IMPROPER ADJUSTMENT DURING OVERHAUL MAY HAVE BEEN A FACTOR.