SDR ASAA2025020256157

Service difficulty report · Shield · Boeing 737890

Difficulty date: February 2, 2025
Submitted: February 25, 2025
Operation: Air carrier
Aircraft: N520AS
Make and model: Boeing 737890
Aircraft serial: 36481
Aircraft time: 49,914 hours, 17,596 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Shield
Part number: 146A812712
Condition: Corroded
Location: Zone 100
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

AFT CARGO PIT FWD SHIELD HAS CORROSION. GROUNDED - YES. EVALUATED, REMOVED CORROSION, ORIGINAL MATERIAL THICKNESS .050, REMOVED .021 REMAINING .029, FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-60-15-1A-1. REMOVED DAMAGED SHIELD, INSTALLED NEW AFT PIT FWD SHIELD PN-146A8127-12 PO-1113144.6 IAW BAC DWG 146A0081 REV C B737-800 SRM 51-40-02, SRM 51-40-05, TOOLING T8224U CAL DUE 20/MAR/2025.