SDR ASAA2024102053665

Service difficulty report · Sill Drain · Boeing 737990ER

Difficulty date: October 20, 2024
Submitted: November 7, 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: Sill Drain
Part number: 147A854030
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

MAIN CABIN R2 MOP SILL STA 946-986 CORR. GROUNDED - YES. REMOVED CORROSION, ORIG .080, REMAIN .039 LOSS OF .041, FOUND OUT OF LIMITS IAW B737-900ER SRM 53-70-15. ACCOMPLISHED HFEC INSPECTIONS IAW B737 NDTM PT 6 51-00-00. ACCOMPLISHED DVI IAW B737-900ER SRM 51-10-04, NO DEFECTS NOTED. REMOVED MOP SILL, LOCATED, DRILLED AND INSTALLED NEW MOP SILL IAW BAC DWG 147A8501 AND B737-900ER SRM 51-40-02.