Service difficulty report · Shield · Boeing 737890

Difficulty date
November 4, 2025
Submitted
November 20, 2025
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
70,079 hours, 20,914 cycles
Part
Shield
Part number
146A8127U12
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 COMPARTMENT-STA 767-787 RIGHT SHIELD WITH CORROSION. GROUNDED - YES. REMOVED CORROSION FROM AFT PIT CARGO DOOR FWD SHIELD IAW B737-800 SRM 53-60-15-1A-1.2.A. ORIGINAL THICKNESS IS 0.050" IAW B737-800 53-60-15-01-1. TABLE 4. REMOVED 0.015, REMAINING THICKNESS IS 0.035 IS FOUND TO BE OUT OF LIMIT IAW B737-800 SRM 53-60-15-1A-1.4.G (2)(B). TOOL#T8224V/T8227E-2 DUE DATE 31MARCH2026, REMOVED THE SHIELD IAW B737-800 SRM 51-40-02. RECEIVE NEW AFT PIT CARGO DOOR FWD SHIELD P/N#146A8127-11, PO#11369, LOCATED, DRILLED, COUNTERSINKED IAW B737-800 SRM 51-40-05. INSTALLED THE NEW SHIELD IAW B737-800 SRM 51-40-02.