SDR CA030109001

Service difficulty report · Shaft · Boeing 737201

Difficulty date: January 5, 2003
Submitted: January 21, 2003
Operation: Air carrier
Make and model: Boeing 737201
Aircraft time: 54,098 hours, 49,371 cycles
Engine: Pwa JT8D9A
System (JASC): 7321 · Fuel Control/Turbine Engines
Part: Shaft
Condition: Sheared
Location: Fuel Control
Stage of operation: TX
How discovered: O
Nature of condition: J
Precautionary procedure: D

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

What was found

(CAN) DURING TAXI OUT IN YYZ ON NR 1 ENGINE, THROTTLES WERE ADVANCED FOR TAXI AND ENGINE WENT TO 80 PERCENT N2 WITH RISE IN EGT & F/F. THROTTLE MOVED BACK TO IDLE & ALL PARAMATERS NORMAL. ADVANCED THROTTLE AGAIN AND SAME PROBLEM HAPPENED WITH RISE IN ALL PARAMETERS. MAINTENANCE REMOVED FCU AND FOUND SHAFT SHEARED. FCU REPLACED AND ENGINE RUN CHECKED SERVICEABLE.TIME 55069.02 CYCLES 52105.