SDR FDEA200905261792

Service difficulty report · Keelbeam · Boeing 75721B

Difficulty date: May 26, 2009
Submitted: May 26, 2009
Operation: Air carrier
Aircraft: N933FD
Make and model: Boeing 75721B
Aircraft serial: 24330
Aircraft time: 52,447 hours, 30,243 cycles
System (JASC): 5314 · Fuselage Main, Keel
Part: Keelbeam
Part number: 144N818071
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

RT KEEL BEAM LOWER CHORD FROM STA 1073 TO STA 1100, RBL 8.0 INCH, HAS CORROSION. CORROSION ON RT KEELBEAM CHORD FROM STA 1073 TO STA 1100, RBL 8, FOUND EXCEEDED SRM ALLOWABLE DAMAGE LIMITS AFTER BLENDING. CHORD REMOVED AND REPLACED IAW SRM 51-40-02 REV 97. REPAIR IS CLASSIFIED AS MINOR IAW GMM 6-2-100 CRITERIA.

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