SDR IPXA2014102784702

Service difficulty report · Stiffener · Boeing 74744AF

Difficulty date: October 14, 2014
Submitted: October 27, 2014
Operation: Air carrier
Aircraft: N570UP
Make and model: Boeing 74744AF
Aircraft serial: 35667
Aircraft time: 26,574 hours, 4,478 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Stiffener
Part number: 65B0271220
Condition: Cracked
Location: Bs 2658
Stage of operation: IN
How discovered: 9
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 D, APU FIRE BOTTLE COMPARTMENT FS 2658 AFT BULKHEAD ATTACH STIFFENER IS FOUND CRACK AT LT SIDE OTBD AREA DURING WEB REPAIR, NR 1 STIFFENER COUNT FROM LOWER. LT SIDE OTBD AREA IS REPAIRED IAW HX RI-53-83-10740, REV A & EO B747-5330-55798-A.

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