Service difficulty report · Magnetic Seal · Boeing 737752

Difficulty date
June 14, 2012
Submitted
June 15, 2012
Operation
Air carrier
Aircraft
N904AM
Make and model
Boeing 737752
Aircraft serial
28262
Aircraft time
25,847 hours, 14,046 cycles
Engine
Cfmint CFM567B22
Part
Magnetic Seal
Part number
3051157090
Condition
Leaking
Location
Rt Engine
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

DURING TRANSIT CHECK, TECH ADDED 02 QTS OF OIL IN THE RT ENGINE. DURING TRANSIT CHECK, IT WAS DETECTED AN OIL LEAK THROUGH THE RT ENGINE IDG, SO ACFT WAS SENT TO THE HANGAR AND MX PERFORMED AN ENGINE REVISION DETECTING OIL LEAK IN THE IDG DRAIN SEAL. THE RT ENGINE IDG MAGNETIC SEAL WAS REPLACED IAW MM 72-60-00 AND DRY MOTOR LEAK TEST WAS PERFORMED IAW MM 71-00-00, TESTED CORRECT.