SDR ASAA2024052150060

Service difficulty report · Web · Boeing 737990ER

Difficulty date: May 21, 2024
Submitted: June 5, 2024
Operation: Air carrier
Aircraft: N472AS
Make and model: Boeing 737990ER
Aircraft serial: 60580
Aircraft time: 34,292 hours, 10,508 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Web
Part number: 146A812325
Condition: Corroded
Location: Bs 827-867
Stage of operation: IN
How discovered: O
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 DOOR LWR SILL WEB CORRODED BETWEEN STA 827 TO STA 867. GROUNDED - YES. BLENDED CORR FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-60-15-1A-1 REMOVED & REPLACED SILL WEB UAW B737-900 SRM 51-40-02-0G-0W 1.25, O .045, R .038, L 2.25, D .007.