SDR EIA2004122

Service difficulty report · Structure · Boeing 747SR46

Difficulty date: September 22, 2004
Submitted: November 2, 2004
Operation: Air carrier
Aircraft: N477EV
Make and model: Boeing 747SR46
Aircraft serial: 20784
Aircraft time: 69,735 hours, 34,328 cycles
System (JASC): 5720 · Wing Miscellaneous Structure
Part: Structure
Condition: Corroded
Location: Lt Wing
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

BULGING CORROSION LEFT WING JUST AFT NR 12 K-FLAP, LOWER LEADING EDGE AT FIXED COMPOSITE FAIRING. SUSPECT INT METAL STRAP CORROSION. REMOVED CORROSION PER SRM 51-10-01, REWORK AREA 3 IN LONG BY .5 IN WIDE, BY 0.04 IN DEEP IS OUT OF SRM 57-20-01, FIG 1 LIMIT. REPLACED STRAP PER SRM 51-10-01.

More about the Boeing 747-SR-46