Service difficulty report · Seat Track · Boeing 747243B

Difficulty date
March 20, 2010
Submitted
March 30, 2010
Operation
Air carrier
Aircraft
N540MC
Make and model
Boeing 747243B
Aircraft serial
22508
Aircraft time
106,156 hours, 18,652 cycles
Engine
Ge CF650E2
Part
Seat Track
Condition
Cracked
Location
Bs 1980
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

THIS EO DOCUMENTS A MAJOR REPAIR. DURING C-CHECK, DAMAGE WAS FOUND TO THE MAIN DECK - BS1980, LBL98 - SEAT TRACK WITH A CRACK (REF FIG 1) IAW SRM 53-10-23, FIG 4C (ITEM 1) CARGO TRACK IS MADE OF BAC1520-1566 (7178-T6511) EXTRUSION. PERMANENT REPAIR WAS PERFORMED IAW NRC 199 IAW THE SRM 53-10-05, FIGURE 1A. THIS REPAIR WILL NOT HAVE AN IMPACT ON THE SUPPLEMENTAL STRUCTURE INSPECTION 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 1A.