SDR DLL10980740

Service difficulty report · Gearbox · Lkheed 10113851

Difficulty date: April 5, 1998
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N720DA
Make and model: Lkheed 10113851
Aircraft serial: 193C1136
Engine: Rroyce RB21122B02
System (JASC): 7260 · Turbine Engine Accessory Drive
Part: Gearbox
Part number: RB21122B02
Condition: Failed
Location: Nr 1 Engine
Part time: 38,963 hours
Stage of operation: AP
Nature of condition: K, J
Precautionary procedure: E

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

What was found

BEGINNING DESCENT, -A- SYSTEM PRESSURE 0, QUANTITY REMAINED. IDG LOW OIL PRESSURE LIGHT ON, GEN DISCONNECTED. DISCONNECTED IDG. ON APPROACH NR 1 OIL QTY DROPPED, QTY BELOW 10. NR 1 ENG SHUTDOWN. AT GATE NR 1 ENG OIL QTY 0. REPLACED NR 1 ENG MAIN GEARBOX ON ROUTINE CHECK. PERFORMED TESTS 1-3-9-16 PER PFHB, ALL TEST OK.