SDR UIEA201000125

Service difficulty report · Seat Track · Boeing 74747UF

Difficulty date: June 6, 2009
Submitted: April 12, 2010
Operation: Air carrier
Aircraft: N498MC
Make and model: Boeing 74747UF
Aircraft serial: 29259
Aircraft time: 43,275 hours, 6,484 cycles
System (JASC): 5347 · Fuselage, Seat/Cargo Attach Fittings
Part: Seat Track
Condition: Cracked
Location: Fuselage
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

THE PURPOSE OF THIS EO IS TO RECORD A MAJOR REPAIR. DURING C CHECK INSPECTION BEING PERFORMED AT HKG; DAMAGE WAS FOUND TO THE MAIN DECK BS 1850 TO BS 1860, LBL 33 SEAT TRACK CROWN CRACKED (REFERENCE FIGURE 1). PERMANENT REPAIR PERFORMED IN ACCORDANCE WITH THE 747-400 SRM 53-00-52 FIGURE 201, REPAIR 6.

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