SDR SWAA2022072925540

Service difficulty report · Stringer · Boeing 7377H4

Difficulty date: July 4, 2022
Submitted: July 29, 2022
Operation: Air carrier
Aircraft: N485WN
Make and model: Boeing 7377H4
Aircraft serial: 32473
Aircraft time: 60,155 hours, 35,804 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Condition: Out Of Tolerance
Location: Fuselage
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

WHILE PERFORMING A VISUAL INSPECTION ON TTG8Q00DAZFC STEP 8; FOUND 2EA FWD HOLES ON THE STRINGER WITHIN THE CUTOUT SECTION OF THE SKIN. LARGER THAN THE STANDARD SIZE / [01] FWD HOLE DIA. MEASURED: 0.200'; AFT HOLE DIA. MEASURED: 0.233'<BR><BR>TOOL USED B/C 174207 DUE: 11-NOV-22;[02] REF. TASK CARD TTG8Q00DH3UE EA 22-153-01839 FOR WORK PROCEDURE;[03] ??PERFORMED EA 22-153-01839. REFER TO FAULT TTG8Q00D4W67.';[04] [FINAL] VALIDATED STEPS 1; 2 & 3

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