SDR FDEA200906222199

Service difficulty report · Keelbeam · Boeing 75721B

Difficulty date: June 22, 2009
Submitted: June 22, 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: 144N818096
Condition: Corroded
Location: Zone 100
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 CHORD HAS CORROSION FROM STA 1120 TO STA 1138, RBL 8.0" (FAIRING STRUCTURE) CORROSION ON KEEL BEAM CHORD FROM STA 1120 TO STA 1138, RBL 8, FOUND EXCEEDED SRM ALLOWABLE DAMAGE LIMITS. KEEL BEAM CHORD REMOVED AND REPLACED IAW SRM 51-40-02 REV.97. REPAIR IS CLASSIFIED AS MINOR IAW GMM 6-2-100.

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