Service difficulty report · Bulkhead · Boeing 747SR46

Difficulty date
September 18, 2002
Submitted
October 11, 2002
Operation
Air carrier
Aircraft
N680UP
Make and model
Boeing 747SR46
Aircraft serial
20923
Aircraft time
63,455 hours, 32,969 cycles
Part
Bulkhead
Condition
Cracked
Location
Fuselage
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 LT BS 1480 AREA FOUND HOLE NR 26 CRACKED AT BULKHEAD WEB. LT BS 1480 BULKHEAD SPLICE WEB NR 26 BOLT HOLE OVERSIZED TO 0.660 INCH & CONFIRMED CRACK FREE. REPAIR BUSHING FABRICATED & INSTALLED AS PER BOEING SB 747-53A2390 FIG 11 & HAECO RS R-53-43-34911 & UPS EO B747-5310- 17623-A. THE REPEAT INSPECTION OF BS 1480 BULKHEAD & SPLICE COMPONENT WILL BE REDUCED TO 4800 FLIGHT CYCLES AS PER UPS EO B747-5310-10732.

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