Service difficulty report · Rib · Boeing 7377H4

Difficulty date
August 5, 2023
Submitted
September 5, 2023
Operation
Air carrier
Aircraft
N449WN
Make and model
Boeing 7377H4
Aircraft serial
32469
Aircraft time
65,862 hours, 39,346 cycles
Part
Rib
Part number
UNKNOWN
Condition
Cracked
Location
Zn 300 Stabilize
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 LEADING EDGE RIB LOCATED LE STA 95.96 RT HORIZONTAL STAB 2023-477715<[01] REPLACED RIB LOCATED AT LEADING EDGE LE STA 95.96 RT HORIZONTAL STAB. IAW B737-700 51-10-02. PARAGRAPH 9. AND DWG 186A1001. REV.?A?. SEE INDIVIDUAL SIGN OFF BELOW.;[02] CORRECTED STEP 1:<BR>REPLACED RIB LOCATED AT LEADING EDGE LE STA 95.96 RT HORIZONTAL STAB. IAW B737-700 SRM 51-10-02. PARAGRAPH 9. AND DWG 186A1001. REV.?A?. SEE INDIVIDUAL SIGN OFF BELOW.;[03] REPLACED RIB LOCATED AT LEADING EDGE LE STA 95.96 RT HORIZONTAL STAB. IAW B737-700 SRM 51-10-02. PARAGRAPH 9. AND DWG 186A1001. REV.?A?. SEE INDIVIDUAL SIGN OFF BELOW. COMPLETED RII

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