Service difficulty report · Web · Boeing 737990ER

Difficulty date
February 19, 2026
Submitted
March 10, 2026
Operation
Air carrier
Aircraft
N428AS
Make and model
Boeing 737990ER
Aircraft serial
36353
Aircraft time
36,408 hours, 11,334 cycles
Part
Web
Part number
147A511620
Condition
Corroded
Location
Zone 200
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

RH WEB STA 987-1006 RBL 26-46 HAS AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION IAW B737-900 SRM 51-10-02-0G-0. ORIGINAL THICKNESS .080 IAW BAC DWG #147A5116 REV- REMAINING THICKNESS IS .050 TOOL #T8224B DUE 03DEC26. .030 MAT LOSS. REMOVED AND REPLACED WEB 147A5116U20 PO#1141845.7 IAW B737-900 SRM 51-40-02 REF DWG #147A5701 REV-.