SDR SWAA2022021623334

Service difficulty report · Floor Panel · Boeing 737705

Difficulty date: June 13, 2018
Submitted: February 17, 2022
Operation: Air carrier
Aircraft: N271LV
Make and model: Boeing 737705
Aircraft serial: 29090
Aircraft time: 48,009 hours, 34,442 cycles
System (JASC): 5321 · Fuselage Floor Panel
Part: Floor Panel
Condition: Corroded
Location: Aft Cargo
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*** ACB; FLOOR PANEL 140DF HAS EDGE SURFACE CORROSION. / ACB FLOOR PANEL 140DF CORROSION FOUND OUT OF LIMITS DUE TO LENGTH EXCEEDING 3' PER SRM 53-00-53-1A-1 STEP 5.A.(B). FABRICATED FLOOR PANEL FROM .071' 2024-T3 LOT # 1347031-3; COUNTERSUNK PANEL; APPLIED CHEMICAL CONVERSION COATING AND PRIMED PANEL BOTTOM SIDE PER SRM 53-70-53-01-1; DWG 453A2610; SRM 51-40-05-0G-0; MM 51-21-41-370-801; SRM 51-40-08-0G-0 AND MM 51-21-72-370-804.