SDR U2RA201211130001

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 1390-1410, RBL 2.9", FLOOR SUPPORT HAS CORROSION AT ANCHOR NUT ATTACH AREAS, LENGTH 1.5", WIDTH 1", DEPTH .014" ORIGINAL MATERIAL THICKNESS .063", REMAINING MATERIAL THICKNESS .049". SUPPORT REPLACED IAW DWG 146N5417. REF NRC HFL5880.

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