Service difficulty report · Web · Boeing 737990ER

Difficulty date
August 26, 2025
Submitted
September 15, 2025
Operation
Air carrier
Aircraft
N448AS
Make and model
Boeing 737990ER
Aircraft serial
36356
Aircraft time
34,132 hours, 10,528 cycles
Part
Web
Part number
654A000358
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

FWD CARGO DOOR SCUFF PLATE SUB-STRUCTURE HAS MULTIPLE AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION FROM FWD PIT CARGO DOOR LOWER WEB IAW SRM 53-30-15-1A-1 ORIGNAL MATERIAL THICKNESS IS 0.050 IAW SRM 53-30-15-01-1, REMOVED 0.020, REMAINING THICKNESS IS 0.030, FOUND TO BE OUT OF LIMITS IAW SRM 53-30-15-1A-1. REMOVED AND REPLACED NEW FWD PIT DOOR LOWER WEB IAW SRM 51-40-05, 51-40-02, AND DWG 143A122 REV-.