SDR CALA2025120811867

Service difficulty report · Tee Angle · Boeing 75733N

Difficulty date: December 5, 2025
Submitted: December 8, 2025
Operation: Air carrier
Aircraft: N77865
Make and model: Boeing 75733N
Aircraft serial: 32589
Aircraft time: 72,509 hours, 21,526 cycles
System (JASC): 5340 · Fuselage Main, Attach Fittings
Part: Tee Angle
Part number: 149N7130
Condition: Corroded
Location: Zone 200
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

CORROSION FOUND AT TEE CHORD LOWER SURFACE AT BS 900 BOTTOM SECTION. PERFORMED TEE CHORD REPAIR ON BS 900 BOTTOM, FABRICATED PARTS ON TRAVELER'S T25/1841651, T25/1841652 AND T25/1841653 IAW SRM 51-70-06, APPLIED TREAT, PRIMER, TOP COAT AND CIC.

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