Service difficulty report · Keelbeam · Boeing 75721B

Difficulty date
May 26, 2009
Submitted
June 29, 2009
Operation
Air carrier
Aircraft
N933FD
Make and model
Boeing 75721B
Aircraft serial
24330
Aircraft time
52,447 hours, 30,243 cycles
Part
Keelbeam
Part number
144N818072
Condition
Corroded
Location
Bs 1140-1168
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 KEELBEAM LOWER CHORD FROM STA 1140 TO STA 1168, RBL 8.0", HAS CORROSION. CORROSION ON RT KEELBEAM LOWER CHORD FROM STA 1140 TO STA 1168 FOUND EXCEEDED SRM LIMITS AFTER BLENDING. CHORD REMOVED AND REPLACED IAW SRM 51-40-02 REV.97. REPAIR IS CLASSIFIED AS MINOR PER GMM 6-2-100 CRITERIA.

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