SDR UPS02439732

Service difficulty report · Forging · Boeing 747SR46

Difficulty date: September 27, 2002
Submitted: October 14, 2002
Operation: Air carrier
Aircraft: N680UP
Make and model: Boeing 747SR46
Aircraft serial: 20923
Aircraft time: 63,455 hours, 32,969 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Forging
Condition: Corroded
Location: Bulkhead
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 CORROSION REVEALED ON RT BS 1241 BULKHEAD FORGING AT UPPER KICK FITTING ATTACH FASTENER HOLE BY APPROX 0.030" DEEP AS PER ATTACH FIGURE. R/H BS 1241 B/H KICK FTG ATTACH FORGING UPPER HOLE REPAIRED AS PER HX RS R-53-43-34916 & UPS EO B747-5310-17698-A. NOTE : L/R BS 1241 FAILSAFE STRAP IS TO BE INSPECTED PER SB 747-53-2283 'CRACK SAFE' PROCEDURE EVERY 3000 FLIGHTS. THE SPLICE STRAPS & SOLID FILLERS REQUIRED TO CHANGE WITHIN 2 YEARS.

More about the Boeing 747-SR-46