Service difficulty report · Angle · Boeing 7377H4

Difficulty date
August 25, 2021
Submitted
September 21, 2021
Operation
Air carrier
Aircraft
N758SW
Make and model
Boeing 7377H4
Aircraft serial
27873
Aircraft time
74,045 hours, 43,671 cycles
Part
Angle
Condition
Cracked
Location
Center Wing
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 ANGLE LOCATED BS695 AND RBL24 AT CENTER WING BOX ; 2021-384461 / [01] REMOVED ANGLE LOCATED BS 695 AND RBL 24 AT CENTER WING BOX IAW B737-700 SRM 51-40-02 AND NOT FOUND ALLOWABLE DAMAGE LIMITS IN SRM B737-700 ANGLE MUST BE REPLACED ; PERFORMED VISUAL INSPECTION ON AREA AND NOT FOUND MORE DAMAGE.; [02] REPAIR ANGLE (1 E/A) MATERIAL P/N: 7075-T0/0.050 (BAC1490-2782) PO: 2021-184600. HEAT TREATED AND CONVERTED FROM 7075T0 TO 7075T73 IAW BAC5602; TABLE IV AND TABLE XI. TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 21-JAN-22; TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 112820025; DUE DATE: 22-JAN-22.; [03] STEP 1 COMPLETED; [04] STEP 2 COMPLETED.; [05] MADE ANGLE LOCATED BS695 AND RBL24 AT CENTER WING BOX IAW DRAWING #273A9112 REV:-; [06] VERIFIED STEP 5. COMPLETED<BR>MADE ANGLE LOCATED BS695 AND RBL24 AT CENTER WING BOX IAW DRAWING #273A9112 REV:-; [07] APPLIED PROTECTIVE TREATMENT ON ANGLE LOCATED BS695 AND RBL24 AT CENTER WING BOX IAW B737-700 SRM 51-20-01 AND OBTAIN OK TO INSTALL ANGLE; [08] STEP 7 CERTIFIED AS RII; [09] INSTALLED ANGLE LOCATED BS 695 AND RBL 24 AT CENTER WING IAW B737-700 SRM 51-40-02 DWG; [10] REPLACED ANGLE LOCATED BS 695 AND RBL 24 AT CENTER WING IAW B737-700 SRM 51-40-02; [11] CORRECTIVE ACTION STEP 9 INSTALLED ANGLE LOCATED BS 695 AND RBL 24 AT CENTER WING IAW B737-700 SRM 51-40-02; [12] STEP 10 AND 11 COMPLETED.ITEM RII.TASK COMPLETED

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