SDR ASAA2023022142338

Service difficulty report · Track · Boeing 737890

Difficulty date: February 21, 2023
Submitted: March 15, 2023
Operation: Air carrier
Aircraft: N581AS
Make and model: Boeing 737890
Aircraft serial: 35188
Aircraft time: 55,489 hours, 16,498 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Track
Part number: 143A7501172
Condition: Corroded
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

FWD CARGO FLOOR STRUCTURE BETWEEN STA.500H AND 500I, APPROX.LBL18 FLOOR PANEL LONGITUDINAL SUPPORT HAS CORROSION ON TOP SURFACE AS MARKED. GROUNDED - YES. REMOVED AND REPLACED PREVIOUSLY REPAIRED FLOOR SUPPORT IAW B737-800 SRM 53-00-53-1A-2, SRM 51-40-02, SRM 53-00-53-2R-4, SRM 51-40-05, MAT ID BAC 1520-1397-7050-T76511 EXT PO #996231.1.