Service difficulty report · Mount

Difficulty date
June 19, 2018
Submitted
June 20, 2018
Operation
Air carrier
Engine
Ge CF680A2
Part
Mount
Part number
FITTINGLOWERAFTE
Part serial
NA
Condition
Damaged
Location
Engine
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING ACCOMPLISHMENT OF REPAIR 3-2 PER DAL CMM 310T1020-3 ATA 71-21-11, AFTER REMOVAL OF ALL DAMAGE BEARING LUG INDEX 14 WAS FOUND TO MEASURE 0.714 INCH, WHICH IS 0.021 INCH BELOW THE MINIMUM DIMENSION GIVEN IN FIGURE 601, SHEET 2. ADDITIONALLY, ATTACH LUG INDEX 15 WAS FOUND TO MEASURE 0.375 INCH, WHICH IS 0.005 INCH BELOW THE MINIMUM DIMENSION GIVEN IN FIGURE 601, SHEET 2. BOEING WAS CONTACTED FOR PART DISPOSITION AND RESPONDED WITH SR 4-4055269832, WHICH RECOMMENDED ENSURING THE BLEND RADIUS IS A MINIMUM 1.0 INCH, AND THAT ALL FINISHES ARE RESTORED PER THE CMM. THIS WAS ACCOMPLISHED IN PRI 568421-14. THE FINAL RESULTS WERE REPORTED BACK TO BOEING AND THEY ACCEPTED THE DIMENSIONS AND PROVIDED FAA FORM 8100-9.