Service difficulty report · Rib · Boeing 7377H4

Difficulty date
August 14, 2023
Submitted
September 7, 2023
Operation
Air carrier
Aircraft
N225WN
Make and model
Boeing 7377H4
Aircraft serial
34333
Aircraft time
59,226 hours, 35,397 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 INSPAR RIB 129.50 UPPER FLANGE FRONT SPAR AT LT HORIZONTAL STABILIZER 2023-490753<[01] TOOL USED: TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 142811020 DUE DATE: 25-JAN-24. TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 112820025 DUE DATE: 01-FEB-24.;[02] PERFORMED REPAIR ON INSPAR RIB 129.50 UPPER FLANGE FRONT SPAR AT LT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5; STEP 4. N TO S; AND 23-155-02568-WIP1; SEE INDIVIDUAL SIGN-OFF BELOW.;[03] CORRECTED ACTION 2<BR>PERFORMED REPAIR ON INSPAR RIB 129.50 UPPER FLANGE FRONT SPAR AT LT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5; STEP 4.(N) TO 4.(S); AND 23-155-02568-WIP1; SEE INDIVIDUAL SIGN-OFF BELOW.;[04] CORRECTED ACTION 2<BR>PERFORMED REPAIR ON INSPAR RIB 129.50 UPPER FLANGE FRONT SPAR AT LT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5; STEP 4.(N) TO 4.(S); AND 23-155-02568-WIP1;RII SEE INDIVIDUAL SIGN-OFF BELOW.;[05] CORRECTED STEP 3<BR>PERFORMED REPAIR ON INSPAR RIB 129.50 UPPER FLANGE FRONT SPAR AT LT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5 AND EA-23-155-02568-WIP1 AND EA COVER EA-23-155-02568 <BR><BR>SEE INDIVIDUAL SIGN-OFF BELOW.;[06] RII ITEM <BR>PERFORMED REPAIR ON INSPAR RIB 129.50 UPPER FLANGE FRONT SPAR AT LT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5 AND EA-23-155-02568-WIP1 AND EA COVER EA-23-155-02568 <BR><BR>SEE INDIVIDUAL SIGN-OFF BELOW.

More about the Boeing 737-7H4