SDR ASAA2024101653722

Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date: October 16, 2024
Submitted: November 13, 2024
Operation: Air carrier
Aircraft: N442AS
Make and model: Boeing 737990ER
Aircraft serial: 43293
Aircraft time: 39,526 hours, 12,369 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Transition Panel
Part number: 143A7501192
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 PIT RH TRANSITION STA 500A TO 500L HAS NUMEROUS SPOTS OF CORROSION. GROUNDED - YES. REMOVED CORROSION, ORIGINAL MATERIAL THICKNESS .040, REMOVED .040, REMAINING .000, FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-00-53-1A-2. REPAIRED FWD PIT R/H TRANSITION PANEL IAW B737-900 SRM 53-00-53-2R-5