Service difficulty report · Web · Boeing 75721B

Difficulty date
November 25, 2009
Submitted
November 25, 2009
Operation
Air carrier
Aircraft
N934FD
Make and model
Boeing 75721B
Aircraft serial
24331
Aircraft time
50,153 hours, 32,684 cycles
Part
Web
Part number
146N57002
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

AFT CARGO STA 1310, RBL 16 INTERCOSTAL SUPPORT CORRODED. AFT CARGO STA 1310 INTERCOSTAL SUPPORT CORROSION REMOVED IAW SRM 51-10-02 REV. 98. EVALUATED AND FOUND EXCEED LIMIT IAW SRM 53-00-04 FIG. 101 REV. 98. MATERIAL REMOVED = 0.010", MATERIAL THICKNESS = 0.032", MATERIAL REMAINED = 0.022". INTERCOSTAL AND CHORD FABRICATED IAW DWG 146N5700 REV. A, PL 146N5700 REV A AND DWG 146N5445 REV -, PL 146N5445 REV C FABRICATED INTERCOSTAL WEB AND CHANNEL PART MARKED IAW GMM 7-0-1001. PARTS REMOVED AND REPLACED IAW SRM 51-40-02 REV 98. REPAIR IS CLASSIFIED AS MINOR GMM 6-2-100 CRITERIA.

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