SDR DALA2015062304006

Service difficulty report · Floor Support · Boeing 7572Q8

Difficulty date: June 22, 2015
Submitted: June 30, 2015
Operation: Air carrier
Aircraft: N823DX
Make and model: Boeing 7572Q8
Aircraft serial: 33967
Aircraft time: 25,839 hours, 15,429 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Corroded
Location: Bs 1640-1660
Stage of operation: IN
How discovered: 9
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

CORROSION ON MAIN FLOOR STRUCTURE BOX BEAM, BS 1640 TO 1660, RBL 55 CP53-252-01I. REMOVED CORROSION ON MAIN FLOOR STRUCTURE BOX BEAM BS 1640 TO 1660, RBL 55 IAW SRM 53-00-51, FIG 101. REPLACED BOX BEAM BS 1640-1660, RBL 55 WITH PO 146N5246U8 IAW SRM 51-40-02, PG 6 IAW DWG 146 N5230, L=20" X 2"XD= .012.

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