SDR DALA14013436311

Service difficulty report · Frame · Boeing 747451

Difficulty date: February 28, 2014
Submitted: February 28, 2014
Operation: Air carrier
Aircraft: N671US
Make and model: Boeing 747451
Aircraft serial: 26477
Aircraft time: 65,864 hours, 8,295 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Cracked
Location: Bs 1140
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

FRAME CRACKED AT BS 1140 ON RT SIDE UPPER LOBE TENSION TIE. FRAME REPAIRED IAW SRM 53-40-07, REPAIR 2, HFEC INSPECTED FRAME CUT EDGE AND ALL INITIAL FASTENER HOLES AT REPAIR AREA FOUND NO CRACK IAW NDTM PN 6, 51-00-00, PROCEDURE 23 AND 16, NEW SECTION OF FRAME, SPLICE PLATE AND CHANNEL FABRICATED, HEAT-TREATED IAW NW SA5126-01001-2 AND INSTALLED IAW SRM 53-40-07, REPAIR 2. REQUIRED INSPECTION COMPLETED.