SDR 9WGA2025020534402

Service difficulty report · Fuel Tank · Boeing 747446

Difficulty date: February 5, 2025
Submitted: February 5, 2025
Operation: Air carrier
Aircraft: N344KD
Make and model: Boeing 747446
Aircraft serial: 26344
Aircraft time: 95,559 hours, 18,250 cycles
System (JASC): 2810 · Fuel Storage
Part: Fuel Tank
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

EVIDENCE OF CORROSION STA 1240 LBL 60 LH SIDE CANTED PRESS DECK AREA ON TOP OF THE CENTER FUEL TANK. REMOVED CORROSION AT STATION 1240 LBL 60 L/H CANTED SIDE PRESS DECK AREA TOP OF FUEL TANK IAW B747-400 SRM 51-10-10-02-06-0, ALODINED, PRIMED AREA IAW B747-400 SRM 51-20-01-06-0 AND AMM 51-24-21-370-804. REFERENCE FAA FORM 8100-9 ID 202502120089: DATE 19 APRIL 2025 FOR APPROVED REPAIRS COMPLETED. AIRCRAFT APPROVED FOR RETURN TO SERVICE.