SDR U2RA201211130005

Service difficulty report · Floor Support · Boeing 75728A

Difficulty date: November 13, 2012
Submitted: November 13, 2012
Operation: Air carrier
Aircraft: N176CA
Make and model: Boeing 75728A
Aircraft serial: 24543
Aircraft time: 67,065 hours, 20,179 cycles
Engine: Rroyce RB211535E4
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 146N54178
Condition: Corroded
Location: Zone 100
Part time: 67,065 hours, 20,179 cycles
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 BS 1380-1400, RBL 7.55" FLOOR SUPPORT HAS CORROSION AT ANCHOR NUT ATTACH AREAS, LENGTH 1.5", WIDTH 1", DEPTH .038", ORIGINAL MATERIAL THICKNESS .063", MATERIAL THICKNESS REMAINING .025". REPLACED SUPPORT FROM STATION 1340-1445 IAW DWG 146N5417.

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