SDR EIA2004070

Service difficulty report · Skin · Boeing 747212B

Difficulty date: August 29, 2004
Submitted: September 13, 2004
Operation: Air carrier
Aircraft: N486EV
Make and model: Boeing 747212B
Aircraft serial: 20888
Aircraft time: 81,900 hours, 19,422 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Condition: Corroded
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

AFT BELLY SKIN, STRINGER R51, BS 1820. CUT OUT BADLY CORRODED SKIN, CLEANED CORROSION FROM STRINGER R51: INSIDE CUT OFF IAW SRM 53-30-03. RII: ACCOMPLISHED ECI PER B747 NDT MANUAL D6-7170, PART 6, 51-00-00, FIG 623, NO DEFECT DETECTED. LAY OUT FASTENER PATTERN, PICK UP HOLES, FABRICATE DOUBLER AND FILLER AND INSTALL REPAIR PER 747 SRM 53-30-03, FIG 37A. RESTORED ORIGINAL FINISH PER 747 MM 20-24-11.

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