Service difficulty report · Pressure Deck · Boeing 7377H4

Difficulty date
March 15, 2025
Submitted
April 7, 2025
Operation
Air carrier
Aircraft
N939WN
Make and model
Boeing 7377H4
Aircraft serial
36646
Aircraft time
51,518 hours, 31,311 cycles
Part
Pressure Deck
Condition
Cracked
Location
Zone 200
Stage of operation
IN
How discovered
V
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 ON HORIZONTAL PRESSURE DECK WEB RBL 41 STA 663 AT PASSENGER CABIN (1E/A). CRACK LENGTH 0.312 INCH APPROXIMATELY. ) 2025-203751<[01] ON STEP 6 AND 7: TOOL USED EDDY CURRENT EQUIPMENT PN: NORTEC500D; SN: N500X12101V022240; DUE DATE: 28 MAR 25;[02] REJECTED INSTALLATION STEP BECAUSE THE FASTENERS ON THE OUTERS ROW ARE INCORRECTLY INSTALLED AND THE AREA ALREADY HAS PRIMER APPLIED; APPROXIMATELY AT RBL 60 PRESSURE DECK;[03] REPLACED FASTENERS ON THE OUTERS ROW APPROXIMATELY AT RBL 60 PRESSURE DECK IAW B737-700 SRM 51-40-02 AND IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2 PARAGRAPH 4.L;[04] REPLACED FASTENERS ON THE OUTERS ROW APPROXIMATELY AT RBL 60 PRESSURE DECK IAW B737-700 SRM 51-40-02 AND IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2 PARAGRAPH 4.L<BR>RII;[05] PERFORMED REPAIR ON HORIZONTAL PRESSURE DECK WEB LOC. BS 663.75 TO BS 675 BTW RBL 30 TO RBL 38 AT PASSENGER CABIN IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2; SEE INDIVIDUAL SIGN OFF BELOW.;[06] CORRECTED STEP 5<BR>PERFORMED REPAIR ON HORIZONTAL PRESSURE DECK WEB LOC. BS 663.75 TO BS 675 BTW RBL 30 TO RBL 60 AT PASSENGER CABIN IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2; SEE INDIVIDUAL SIGN OFF BELOW.;[07] PERFORMED REPAIR ON HORIZONTAL PRESSURE DECK WEB LOC. BS 663.75 TO BS 675 BTW RBL 30 TO RBL 60 AT PASSENGER CABIN IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2; SEE INDIVIDUAL SIGN OFF BELOW.<BR>RII

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