SDR CALA2018010100009

Service difficulty report · Box Beam · Boeing 757222

Difficulty date: January 1, 2018
Submitted: January 2, 2018
Operation: Air carrier
Aircraft: N597UA
Make and model: Boeing 757222
Aircraft serial: 28750
Aircraft time: 70,435 hours, 18,508 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Box Beam
Part number: 143N55225
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

CORROSION AT STATION 735 LEFT SIDE, AT THE BOX BEAM, LBL 62, UNDER THE FLOOR PANEL, STICKER 20-141 REMOVED AND REPLACED BOX BEAM AT STA 735 LBL 62, UNDER THE FLOOR PANEL IAW SRM 51-40-02 PG 2. P/N NR 143N5522-5 REF INSTALLATION DWG 143N5400.