SDR P5CA0401128

Service difficulty report · Packing · Boeing 747283B

Difficulty date: July 26, 2004
Submitted: August 2, 2004
Operation: Air carrier
Aircraft: N921FT
Make and model: Boeing 747283B
Aircraft serial: 21575
Aircraft time: 62,727 hours, 14,042 cycles
Engine: Pwa JT9D70A
Engine time: 40,698 hours, 9,313 cycles
System (JASC): 7261 · Turbine Engine Oil System
Part: Packing
Part number: M832481261
Condition: Leaking
Location: Nr 4 Engine
Stage of operation: LD
How discovered: C
Nature of condition: K, J
Precautionary procedure: O

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

What was found

NR 4 ENGINE IN OIL QTY DROPPED FROM 10.5 GAL BEFORE START TO 8.5 GAL AT IDLE. ON APPROACH INDICATION WENT TO ZERO WITH PRESSURE FLUXUATION B/W 40 AND 25 PSI. REMOVED CSD FOR OIL LEAK, INSTALLED CSD WITH NEW O-RING, OPS CHECK OK, LEAK CHECK OK, OIL PRESSURE NORMAL, OK FOR SERVICE IAW MM 24-11-01.