SDR 05009

Service difficulty report · Garlock Seal · Boeing 747206B

Difficulty date
January 30, 2005
Submitted
February 3, 2005
Operation
Air carrier
Aircraft
N704CK
Make and model
Boeing 747206B
Aircraft serial
22299
Aircraft time
98,573 hours, 18,575 cycles
Engine
Pwa JT9D7R4G2
Engine time
41,320 hours, 8,192 cycles
Part
Garlock Seal
Condition
Failed
Location
Csd
Stage of operation
NR
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

PRECAUTIONARY ENG SHUTDOWN ON NR 1 ENG DUE TO LOW OIL QTY. REMOVED AND REPLACED CONSTANT SPEED DRIVE GARLOCK SEAL IAW MM 72-61-07. REMOVED AND REPLACED TRANSFER TUBE "O" RINGS IAW MM 72-61-15 DUE TO BROKEN "O" RING. REMOVED AND REPLACED NR 1 CONSTANT SPEED DRIVE IAW MM 24-11-01, DUE TO LEAKING OIL. REMOVED AND REPLACED NR 1 GENERATOR SHAFT O-RING, DUE TO BEING BROKEN IAW MM 24-21-01. INSPECTED EXTERNAL PART OF ENG THOROUGHLY, INSPECTED VISUALLY, CK'S OK. PERFORMED ENG, RUN-UP IAW MM 71-00-00. ALL FUNCTIONAL RUN-UP CK'S AND PARAMETERS CK'S OK. NO LEAKEDS NOTED. PERFORMED WINDMILLING INSPECTION IAW MM 72-00-00. NO DEFECTS NOTED.