Service difficulty report · T2 Blade · Boeing 727222

Difficulty date
July 18, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N7463U
Make and model
Boeing 727222
Aircraft serial
21917
Engine
Pwa JT8D15
Part
T2 Blade
Part number
761702
Condition
Fractured
Location
Nr 3 Engine
Stage of operation
CL
Nature of condition
R, J
Precautionary procedure
A

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

What was found

NR 3 ENGINE FAILED AT 800 FEET ON TAKEOFF. EGT PEGGED, RPM DECAY, OIL QUANTITY DROPPED TO ONE GALLON AND OIL PRESSURE DROPPED TO ZERO. RETURNED TO DEN. T-2 BLADE FAILURE DUE TO NOTCH BREAK-OUT AND RESULTANT CYCLE FATIGUE. THE BLADE FAILURE WAS THE CAUSE OF THE DISC BLADE FIR TREE POST-FAILURE. EXTENSIVE DOWN STREAM DAMAGE IN THE N1 TURBINE AND EXHAUST CASE. UNDER INVESTIGATION.