SDR CALA2026021613818

Service difficulty report · Sill Drain · Boeing 75733N

Difficulty date: February 14, 2026
Submitted: February 16, 2026
Operation: Air carrier
Aircraft: N57869
Make and model: Boeing 75733N
Aircraft serial: 32593
Aircraft time: 65,033 hours, 19,676 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Sill Drain
Part number: 146N524662
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

R4 DOOR LOWER SILL, UNDER DRAIN GUTTER BTWN BS 1640 - 1681, HAS CORROSION. REMOVED CORROSION IN R4 DOOR LOWER SILL, FOUND OUT OF LIMITS IAW SRM 51-10-02-0G, REMOVED SUPPORT AND CLIP IAW SRM 51-40-02-0G, DRILLED NEW PART IAW SRM 51-40 05-00 AND INSTALLED IAW SRM 51-40-02-0G.

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