SDR EIA2004071

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 STR R51, CORROSION CRACK APPROX 1 INCH LONG BS 1860: CUT OUT BADLY CORRODED SKIN, CLEANED CORROSION FROM STRINGER: DOUBLER WITHIN LIMITS IAW 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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