Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
May 13, 2024
Submitted
June 12, 2024
Operation
Air carrier
Aircraft
N479WN
Make and model
Boeing 7377H4
Aircraft serial
33990
Aircraft time
65,876 hours, 39,680 cycles
Part
Stiffener
Part number
UNKNOWN
Condition
Cracked
Location
Horizontal Stab
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 ON STIFFENER LOC. ON L/E STA 120.30 FRONT SPAR HORIZONTAL STABILIZER L/H SIDE 2024-294824<[01] REPLACED STIFFENER AND FASTENERS LOCATED AT L/E STA 120.30 FRONT SPAR HORIZONTAL STABILIZER L/H SIDE IAW B737-700 SRM 51-40-02 AND DRAWING 182A5304 REV C;[02] CORRECTED STEP <BR>1. RENE TEJADA HERNANDEZ (TECHNICIAN); 22-MAY-2024 02:10 UTC <BR>REPLACED STIFFENER AND FASTENERS LOCATED AT L/E STA 120.30 FRONT SPAR HORIZONTAL STABILIZER L/H SIDE IAW B737-700 SRM 51-40-02 AND DRAWING 182A5304 REV C; SEE INDIVIDUAL SIGN OFF BELOW;[03] REPLACED STIFFENER AND FASTENERS LOCATED AT L/E STA 120.30 FRONT SPAR HORIZONTAL STABILIZER L/H SIDE IAW B737-700 SRM 51-40-02 AND DRAWING 182A5304 REV C; SEE INDIVIDUAL SIGN OFF BELOW. JOB COMPLETED.

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