SDR FDEA201308242021

Service difficulty report · Floorbeam · Boeing 757236

Difficulty date: August 24, 2013
Submitted: October 22, 2013
Operation: Air carrier
Aircraft: N979FD
Make and model: Boeing 757236
Aircraft serial: 25592
Aircraft time: 56,918 hours, 19,763 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 146N51108
Condition: Corroded
Location: Bs 1660
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

BS 1660, LBL 20-25, FLOORBEAM UPPER FLANGE LOWER SURFACE, FOUND CORRODED AROUND FASTENER HOLES. REMOVED AND REPLACED IAW DWG 146N5110 SHT 2, REV B AND INSTALLED IAW DWG 146N5090 SHT 5, REV- AND DWG 146N5500 SHT 1, REV G. REPAIR IS MAJOR.