Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
July 8, 2024
Submitted
August 14, 2024
Operation
Air carrier
Aircraft
N488WN
Make and model
Boeing 7377H4
Aircraft serial
33853
Aircraft time
65,566 hours, 39,062 cycles
Part
Stiffener
Condition
Cracked
Location
Zone 300
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

LH HORIZONTAL STAB RIB #5 (STAB STA 129.50); 3RD VERTICAL STIFFENER CRACKED.<[01] NDT HFEC INSPECTED SURFACE PER 737 NDTM PART 6; 51-00-00; PROC 23; .400-INCH CRACK NOTED.<BR>EQUIP ID ATS2353 DUE 01/25;[02] REMOVED THE DAMAGED PART AT LH HORIZONTAL STABILIZER STA 129.50 RIB 3RD VERTICAL STIFFENER AND INSTALLED REPAIR PARTS IAW SRM 55-10-09-2R-5

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