SDR USAA990548

Service difficulty report · Keel Beam · Boeing 7373B7

Difficulty date: May 29, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N510AU
Make and model: Boeing 7373B7
Aircraft serial: 23385
System (JASC): 5314 · Fuselage Main, Keel
Part: Keel Beam
Part number: 65621258
Condition: Corroded
Location: Bs 170-724
Part time: 40,289 hours
Stage of operation: IN
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

CLT - DURING Q4 CHECK, FOUND .5 INCH BY 14 INCH CORRODED AREA AT RT KEEL BEAM AT BS 710 - BS 724, RBL 6.3, WL 148.5. CORROSION LEVEL 1, CORROSION TASK C53-212-01. REMOVED DAMAGE BY BLENDING/SPOT FACING AND INSTALLED DOUBLER PER EA 64676. (M)

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