SDR UPS05845550

Service difficulty report · Tee Fitting · Doug DC873F

Difficulty date: September 9, 2005
Submitted: October 5, 2005
Operation: Air carrier
Aircraft: N801UP
Make and model: Doug DC873F
Aircraft serial: 46101
Aircraft time: 87,359 hours, 25,121 cycles
System (JASC): 5340 · Fuselage Main, Attach Fittings
Part: Tee Fitting
Condition: Corroded
Location: Bs 860
Stage of operation: IN
How discovered: 9
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

C3 TEE CHORD CRACKED STA 860 RBL 40 UPPER AFT END OF CENTER TANK LOOKING FROM INSIDE MAIN CABIN. AFTER FURTHER EVALUATION CRACK FOUND TO BE CAUSED BY INTERGRANULAR CORROSION, CUT OUT DAMAGE, FABRICATED, AND INSTALLED REPAIR IAW DC-8 SRM 53-2-5 FIG 12 AND DWG 5644011.

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