SDR UPS00434361

Service difficulty report · Forging · Boeing 747121

Difficulty date: October 12, 2000
Submitted: November 3, 2000
Operation: Air carrier
Aircraft: N682UP
Make and model: Boeing 747121
Aircraft serial: 20349
System (JASC): 5310 · Fuselage Main, Structure
Part: Forging
Condition: Corroded
Location: Window Belt
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

INSPECTION TYPE:C, INTERNAL FUSELAGE STA 2140 AND 2160 LT. CORROSION BETWEEN WINDOW FORGING/FUSELAGE AT FWD AND AFT SIDE AND AFT LOWER CORNER. CORROSION REMOVED ACCORDING TO SRM 51-10-01, CORRODED AREA ON FWD SIDE OF WINDOW BELT WITHIN LIMITS AND ON AFT SIDE OUT OF LIMITS ACCORDING TO EFN 747-53-1168. SKIN PANEL ON AFT SIDE OF WINDOW BELT REPAIRED ACCORDING TO EFN 747-53-1192.