SDR USAA2014071700009

Service difficulty report · Support Channel · Boeing 7572B7

Difficulty date: July 15, 2014
Submitted: July 18, 2014
Operation: Air carrier
Aircraft: N940UW
Make and model: Boeing 7572B7
Aircraft serial: 27805
Aircraft time: 64,324 hours, 24,416 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support Channel
Part number: 141N516257
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

C4 CHECK LEVEL 2 GALVANIC CORROSION ON CABIN FLOOR HORIZONTAL SUPPORT CHANNEL BETWEEN BS 395 TO 418, RBL 24.75. REPLACED CABIN FLOOR HORIZONTAL SUPPORT CHANNEL BETWEEN BS 395 TO 418, RBL 24.75 IAW SRM 51-40-02, 51-30-01, 51-20-01, 51-21-15 & 51-21-00.

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