SDR UPS02437690

Service difficulty report · Fitting · Boeing 747123

Difficulty date: January 28, 2002
Submitted: February 18, 2002
Operation: Air carrier
Aircraft: N673UP
Make and model: Boeing 747123
Aircraft serial: 20325
Aircraft time: 68,011 hours, 20,052 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Fitting
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 CRACK REVEALED ON LT BS 1480 BULKHEAD HOLE NR 3 AT EXTENSION FITTING, SKIN, BULKHEAD CHORD AND OUTER CHORD SPLICE FITTING. LT BS 1480 BULKHEAD HOLE NR 3 EXTENSION FITTINGG REAMED TO 0.650 INCH, SKIN REAMED TO 0.687 INCH, BULKHEAD CHORD REAMED TO 0.625 INCH & OUTER CHORD SPLICE FITTING REAMED TO 0.687 INCH AS PER EO B747-5310-10732 & NDT CONFIRMED NR 3 HOLE NO CRACK REVEAL. REPAIR BUSHING INSTALLED ON NR 3 HOLE AS PER SB 747-53A2390 R1 FIG 11.