SDR USAA2013062800023

Service difficulty report · Shaft Seal · Boeing 7572B7

Difficulty date: June 26, 2013
Submitted: June 29, 2013
Operation: Air carrier
Aircraft: N202UW
Make and model: Boeing 7572B7
Aircraft serial: 27811
Aircraft time: 59,957 hours, 21,917 cycles
Engine: Rroyce RB211535E4
Engine time: 48,992 hours, 18,788 cycles
System (JASC): 7261 · Turbine Engine Oil System
Part: Shaft Seal
Condition: Leaking
Location: Rt Engine
Stage of operation: CR
How discovered: O
Nature of condition: K
Precautionary procedure: A

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

What was found

EN-ROUTE, DURING CRUISE FLIGHT, THE RT ENG OIL QTY DROPPED TO A "0" INDICATION. THE OIL TEMP REMAINED NORMAL, AND OIL PRESS FLUCTUATED BETWEEN GREEN AND AMBER. THE FLIGHT DIVERTED. THE RT ENG WAS AT IDLE FOR 1HR 40MINS. MX R & R THE ACCESSORY GEARBOX TOWER SHAFT SEAL. LEAK AND OPS CK GOOD.

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