SDR DALA2018101006023

Service difficulty report · Box Beam · Boeing 757251

Difficulty date: October 8, 2018
Submitted: October 12, 2018
Operation: Air carrier
Aircraft: N551NW
Make and model: Boeing 757251
Aircraft serial: 26498
Aircraft time: 51,344 hours, 22,152 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Box Beam
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

INITIAL INSPECTION, CORROSION ON BOX BEAM FROM STA 1640 TO 1681 RBL 52, AT AFT GALLEY FLOOR STRUCTURE. LEVEL CORROSION 2. BOX BEAM WAS REPLACED PER SRM 51-40-02 PAR 4 AND 7, SRM 51-40-05 AND 51-40-08, SRM 51-20-01 PAR 4 AND 2 AND PS 900-2 NR 09.