Service difficulty report · Cargo Track · Boeing 747243B

Difficulty date
March 20, 2010
Submitted
April 1, 2010
Operation
Air carrier
Aircraft
N540MC
Make and model
Boeing 747243B
Aircraft serial
22508
Aircraft time
106,156 hours, 18,652 cycles
Part
Cargo Track
Condition
Corroded
Location
Bs 1480-1500
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

MAJOR REPAIR. DURING C-CHECK, DAMAGE WAS FOUND TO AFT CARGO COMPARTMENT - BS1480 - BS1500, RBL45 SEAT TRACK WITH CORROSION (REF FIG 1) IAW SRM 53-11-25, FIG 7 (ITEM 2) CARGO TRACK IS MADE OF BAC1520-1682 (7178-T6511) EXTRUSION. PERMANENT REPAIR WAS PERFORMED IAW NRC 768 IAW THE SRM 53-10-05, FIG 5. THIS REPAIR WILL NOT HAVE AN IMPACT ON THE SUP STRUCTURE INSP DOCUMENT (SSID) INSP PROGRAM OF STRUCTURAL SIGNIFICANT ITEMS (SSI) GIVEN IN SRM 51-00-04, FIG 4. THE REPAIR ACCOMPLISHED IAW PART 1 IS APPROVED BY SRM 53-10-05 FIG 5, EO 4753B283.