SDR 2009F00075

Service difficulty report · Bearing · Boeing 747409F

Difficulty date: July 30, 2009
Submitted: September 8, 2009
Operation: Air carrier
Make and model: Boeing 747409F
Aircraft serial: 33732
Aircraft time: 25,054 hours, 2,471 cycles
System (JASC): 5230 · Cargo/Baggage Doors
Part: Bearing
Condition: Migrated
Location: Cargo Door Hinge
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

CHINA AIRLINES AIRCRAFT B-18716 WAS FOUND BEARING MIGRATION AT RT HINGE OF NOSE CARGO DOOR DURING D01 CHECK. DUE TO SHORT OF TOOL TO REPAIR, A PERIODIC CHECK ON BUSHING FLANGE IS REQUIRED PER CHI-CHI-09-0301-04B UNTIL DEFECT IS CORRECTED. FIRST PERIODIC CHECK FOUND FUTHER DAMAGE ON RT HINGE. PER CHI-CHI-09-0310-12B, ACCEPTABLE FOR DISPATCH WITH LIMITED NCD OPERATING. PER CHI-CHI-09-0301-16B, AIRCRAFT WAS GROUNDED FOR FURTHER SURVEY.