Service difficulty report · Shear Tie · Boeing 7377H4

Difficulty date
September 12, 2023
Submitted
October 16, 2023
Operation
Air carrier
Aircraft
N448WN
Make and model
Boeing 7377H4
Aircraft serial
33721
Aircraft time
64,386 hours, 38,370 cycles
Part
Shear Tie
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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

CRACK SUPPORT ANGLE LOCATED BS867 AT LEVEL STR3R PASSENGER CABIN 2023-569650<[01] REPLACED SUPPORT ANGLE LOCATED BS867 AT LEVEL STR3R PASSENGER IAW B737-700 SRM 51-40-02; SRM 51-10-02 AND DWG 144A1312 REV: - SHEET 4. MATERIAL THICKNESS IS: 0.040 INCH; MEASURE OF CRACK IS: 0.066 INCH. TOOL USED DIGITAL CALIPER P/N: 500-197-30 S/N: A21043202.;[02] REPLACED SUPPORT ANGLE LOCATED BS867 AT LEVEL STR3R PASSENGER IAW B737-700 SRM 51-40-02; SRM 51-10-02 AND DWG 144A1312 REV: - SHEET 4. MATERIAL THICKNESS IS: 0.040 INCH; MEASURE OF CRACK IS: 0.066 INCH. TOOL USED DIGITAL CALIPER P/N: 500-197-30 S/N: A21043202. AS RII

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