Service difficulty report · Bracket · Boeing 7377H4

Difficulty date
August 5, 2021
Submitted
September 10, 2021
Operation
Air carrier
Aircraft
N754SW
Make and model
Boeing 7377H4
Aircraft serial
29849
Aircraft time
74,935 hours, 44,224 cycles
Engine
Cfmint CFM567B242
Part
Bracket
Condition
Cracked
Location
Fan Cowl
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 OUTBOARD FAN COWL SUPPORT BRACKET LOC. INTERNAL AREA ACCESS DOOR 424AR ON ENGINE 2 ; 2021-368631 / [01] MEASURED OF CRACK OUTBOARD FAN COWL SUPPORT BRACKET LOC. INTERNAL AREA ACCESS DOOR 424AR ON ENGINE 2. L: 0.625 INCH TOOL USED P/N: 500-172-30; S/N: 15237811; DUE DATE: 11MAY22; [02] REMOVED OUTBOARD FAN COWL SUPPORT BRACKET LOC. INTERNAL AREA ACCESS DOOR 424AR ON ENGINE 2 DUE TO NOT FOUND ALLOWABLE DAMAGE IN STM B737-700 FOR CRACK ON SUPPORT BRACKET MUST BE REPLACE AND PERFORMED VISUAL INSPECTION NOT FOUND MORE DAMAGE; [03] STEP 1 AND STEP 2 COMPLETE; [06] INSTALLED OUTBOARD FAN COWL SUPPORT BRACKET LOC. INTERNAL AREA ACCESS DOOR 424AR ON ENGINE 2 IAW CMM 71-13-30; [07] STEP 6 COMPLETED; [08] CORRECTED STEP 2 REMOVED OUTBOARD FAN COWL SUPPORT BRACKET LOC. INTERNAL AREA ACCESS DOOR 424AR ON ENGINE 2 IAW B737-700 SRM 51-40-02. DUE TO NOT FOUND ALLOWABLE DAMAGE IN SRM B737-700 FOR CRACK ON SUPPORT BRACKET MUST BE REPLACE AND PERFORMED VISUAL INSPECTION NOT FOUND MORE DAMAGE; [09] STEP 8 COMPLETE; [10] REPLACED OUTBOARD FAN COWL SUPPORT BRACKET LOC. INTERNAL AREA ACCESS DOOR 424AR ON ENGINE 2 IAW CMM 71-13-30 AND SRM 51-40-02 P/N USED 314-2259-4 PO 2021-183887 1; [11] REPLACED OUTBOARD FAN COWL SUPPORT BRACKET LOC. INTERNAL AREA ACCESS DOOR 424AR ON ENGINE 2 IAW CMM 71-13-30 AND SRM 51-40-02 P/N USED 314-2259-4 PO 2021-183887 1 TASK COMPLETED

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