SDR FDEA202010042414

Service difficulty report · Crease Beam · Boeing 757222

Difficulty date: October 4, 2020
Submitted: October 13, 2020
Operation: Air carrier
Aircraft: N781FD
Make and model: Boeing 757222
Aircraft serial: 26673
Aircraft time: 74,412 hours, 28,139 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Crease Beam
Part number: 144N51522
Condition: Corroded
Location: Zone 200
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

MAIN DECK BETWEEN STA 1020-1040 RT CREASE BEAM CORRODED. REMOVED CORROSION AT CREASE BEAM STA 1020-1040 RT SIDE, IAW B 757 SRM 51-10-02-OG, ORIGINAL MAT .070", MINIMUN REMAINING .022". MAT LOSS .048" FOUND TO BE OUT OF LIMITS, IAW B757 SRM 53-30-13-1A FIG 101 DETAL III. REMOVED, FABRICATED, AND INSTALLED CREASE BEAM SECTION, IAW B DWG 144N5140 REV D AND B 757 SRM 51-40-02-OG.