Service difficulty report · Pressure Deck · Boeing 7377H4

Difficulty date
August 4, 2021
Submitted
September 20, 2021
Operation
Air carrier
Aircraft
N410WN
Make and model
Boeing 7377H4
Aircraft serial
27897
Aircraft time
66,797 hours, 39,221 cycles
Part
Pressure Deck
Condition
Cracked
Location
Bs 663 Rbl 40
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 INDICATION WEB ON HORIZONTAL PRESSURE DECK AT BS 663 AND RBL 40 AT PASSENGER CABIN (1 EA) L= 0.375 IN. ; 2021: 373056 / [01] TOOL USED PN/ NORTEC 600D; SN/ 2000053402; DUE DATE/ 23 APR22; [02] PERFORMED PERMANENT REPAIR LOC. ON HORIZONTAL PRESSURE DECK BTW BS 663.75 TO BS 675 AND BTW RBL 30 TO RBL 60 AT PASSENGER CABIN I.A.W B737-700; SRM 53-40-51-2R-2. WEB MATERIAL USED P/N: 2024-T3 0.063; PO: 149793; DOUBLER MATERIAL USED P/N: 2024-T3 CLAD 0.080; PO: 2021-138114; STIFFENERS MATERIAL USED P/N: BAC1505-100052; PO: 129586; [03] JOB COMPLETED; [04] JOB COMPLETED RII; [05] PERFORMED PERMANENT REPAIR LOC. ON HORIZONTAL PRESSURE DECK BTW BS 663.75 TO BS 675 AND BTW RBL 30 TO RBL 60 AT PASSENGER CABIN I.A.W B737-700; SRM 53-40-51-2R-2. WEB MATERIAL USED P/N: 2024-T3 0.063; PO: 149793; DOUBLER MATERIAL USED P/N: 2024-T3 CLAD 0.080; PO: 2021-138114; STIFFENERS MATERIAL USED P/N: BAC1505-100052; PO: 129586; AND INSTALLED STIFFENER BTW RBL 45 TO RBL 60 AND BS663 IAW B737-700 SRM 51-40-02; [06] STEP 5 COMPLETED <BR>RII

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