Service difficulty report · Pressure Deck · 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
Part
Pressure Deck
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 ON THE RH CANTED PRESSURE DECK AREA ON THE OUTBOARD WALL. REMOVED CORROSION AT STA 1240 R/H CANTED PRESSURE DECK O/B WALL IAW B747-400 SRM 51-17-02-06-0, ALODINED, PRIMED AND TOP COATED IAW B747-400 SRM 51-20-01-06-0, PRIMED, AMM 51-24-21-370-804 AND AMM 51-24-22-370-801. REFERENCE FAA FORM 8100-9 ID 202502100212-0006 DATED APR 22 2025 FOR APPROVED REPAIRS. AIRCRAFT APPROVED FOR RETURN TO SERVICE.