SDR EIA2008055

Service difficulty report · Engine · Boeing 747212B

Difficulty date
September 29, 2008
Submitted
November 19, 2008
Operation
Air carrier
Aircraft
N485EV
Make and model
Boeing 747212B
Aircraft serial
20712
Engine
Pwa JT9D7J
Part
Engine
Condition
Making Metal
Location
Nr 2
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

DURING CRUISE ENCOUNTERED HEAVY SURGE NR 2 ENG ALONG WITH VIBRATION EPR DROPPED TO BOTTOM OF SCALE EGT REACHED YELLOW BAND, REDUCED POWER TO IDLE, VIBRATION PERSISTED, SHUT NR 2 ENGINE DOWN ENG WINDMILL OIL PRESS AT 28PSI. ANGLE GEARBOX AND MAIN GEARBOX CHIP DETECTORS REMOVED. METAL FOUND AT LOWER RT 3.5 BLEED PORT. REPLACED ENGINE IAW WORK CARD F7201-JT9. (K)

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