SDR FDEA2022101172505

Service difficulty report · Doubler · Boeing 777FS2

Difficulty date: October 7, 2022
Submitted: October 11, 2022
Operation: Air carrier
Aircraft: N890FD
Make and model: Boeing 777FS2
Aircraft serial: 41439
Aircraft time: 39,521 hours, 6,432 cycles
System (JASC): 5300 · Fuselage Structure (General)
Part: Doubler
Part number: 143W2314Y405
Condition: Misrepaired
Location: Zone 100
Stage of operation: NR
How discovered: 9
Nature of condition: W
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING PERFORMING EO G-5710-E0365655 B P7 STEP8.C.(5), FOUND 01EA ZLJ-8 COUNTERSUNK FASTENER AT STA 998 S35L TOO CLOSE TO EDGE OF MACHINED STEP OF DOUBLER P/N 143W2314Y405, AND WILL RESULT IN KNIFE EDGE WITH MACHINED STEP ON AFT EDGE OF COUNTERSUNK HOLE.

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