Service difficulty report · Gusset · Boeing 7377H4

Difficulty date
July 30, 2021
Submitted
September 7, 2021
Operation
Air carrier
Aircraft
N442WN
Make and model
Boeing 7377H4
Aircraft serial
32459
Aircraft time
60,608 hours, 35,906 cycles
Part
Gusset
Condition
Cracked
Location
Bs 500d S19l
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 GUSSET BSTA 500D; STRINGER 19L FWD CARGO COMPARTMENT ; 2021-341391 / [01] REMOVED GUSSET BSTA 500D; STRINGER 19L FWD CARGO COMPARTMENT; IAW 737-700 SRM 51-40-02 DUE TO NOT FOUND ALLOWABLE DAMAGE LIMITS IN SRM B737-700. GUSSET MUST BE REPLACED AND PERFORMED VISUAL INSPECTION AND NOT FOUND MORE DAMAGE. THE MEASURES OF CRACK IS: 0.291 TOOL USED: CALIPER P/N: DIGITAL 150 S/N:AE-412604 DUE DATE: 28/MAY/22; [02] DRILLED AND APPLIED PROTECTIVE TREATMENT ON OPEN HOLES OF GUSSET BSTA 500D; STRINGER 19L FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-05 AND SRM 51-20-01; [03] STEP 1 Y 2 COMPLETE RII; [04] OK TO INSTALL NEW GUSSET AND FASTENERS LOC BST 500D; STRINGER 19L FWD CARGO COMPARTMENT; [05] VERIFIED STEP 4; OK TO INSTALL GRANTED RII; [06] INSTALL NEW GUSSET AND FASTENERS LOC BST 500D; STRINGER 19L FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 AND DWG 143A7902 SHEET 174 REV:_; [07] STEP 6 CORRECTIVE ACTION: INSTALLED NEW GUSSET AND FASTENERS LOC BST 500D; STRINGER 19R FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 AND DWG 143A7902 SHEET 174 REV:_; [08] STEP 7 VERIFIED RII; [09] REPLACED GUSSET AND FASTENERS LOC BST 500D; STRINGER 19R FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02; AND SRM 51-10-02 PARAGRAPH 9 AND DWG 143A7902 SHEET 174 REV:-.; [10] TASK COMPLETED RII

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