SDR FDEA201007282698

Service difficulty report · Floor Support · Boeing 7572B7

Difficulty date: July 28, 2010
Submitted: July 28, 2010
Operation: Air carrier
Aircraft: N902FD
Make and model: Boeing 7572B7
Aircraft serial: 27123
Aircraft time: 53,534 hours, 22,034 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 146N54519
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 PIT FLOOR SUPPORT WEB BS 1600-1620 RBL 5.5 LOWER SECTION CORRODED. BLENDED OUT CORROSION ON WEB IN AFT CARGO STA 1600- 1620 AND CHECKED LIMITS, MATERIAL THICKNESS- 0.40, L=15", W=0.075, D=.10", AND FOUND OUT OF LIMIT IAW SRM 53-00-04, FIG 101. INSTALLED NEW WEB WITH PART NR 146N5451-9- N00307. ON AFT CARGO STA 1600-1620, RBL 5.5 IAW SRM 51-40-02. MAJOR REPAIR.

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