Service difficulty report · Blade · Boeing 727222

Difficulty date
February 26, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N7289U
Make and model
Boeing 727222
Aircraft serial
21567
Engine
Pwa JT8D15
Part
Blade
Part number
735903
Condition
Fractured
Location
Nr 2 Engine
Stage of operation
CL
Nature of condition
E
Precautionary procedure
E

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

What was found

DURING CLIMBOUT, HEARD LOUD SQUEAL AND VIBRATION FROM NR 2 ENGINE. EPR DROPPED OFF FROM 2.17 TO APPROXIMATELY 1.6 AND THEN EGT BEGAN TO CLIMB RAPIDLY. PERFORMED ENGINE SHUTDOWN. ORIGIN OF FAILURE NOT DETERMINED DUE TO THE ENGINE OPERATION AFTER THE FAILURE. PROBABLE CAUSE IS STRESS RUPTURE OF T-3 BLADE DUE TO EXCESSIVE NOTCH WEAR AND ACCUMULATIVE CREEP DAMAGE. OVER TEMP ANALYSIS ON T-2 BLADES VERIFIED NO OVERTEMP EXISTED. A FULL REPAIR WAS ACCOMPLISHED.