Service difficulty report · Web · Boeing 7377H4

Difficulty date
June 24, 2023
Submitted
August 14, 2023
Operation
Air carrier
Aircraft
N446WN
Make and model
Boeing 7377H4
Aircraft serial
29842
Aircraft time
63,739 hours, 37,814 cycles
Part
Web
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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 INDICATIONS FOUND(2EA) ON HORIZONTAL PRESSURE DECK WEB BTW RBL 40 TO RBL 47 ON BS 663 TO BS 675; CRACK LENGHT ARE AS FOLLOW: CRACK 1: 0.450 INCHES AND CRACK 2: 0.510 INCHES APPROX 2023-412963<[01] TOOL USED: EDDY CURRENT EQUIPMENT; PN: NORTEC 600D; SN: 210138203; DUE DATE: 09-JUN-24;[02] PERFORMED PERMANENT REPAIRED ON HORIZONTAL PRESSURE DECK WEB BTW RBL 40 TO RBL 60 ON BS 663 TO BS 675 IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2 AND DWG 144A7710 REV A.;[03] CORRECTED STEP 2.<BR>PERFORMED PERMANENT REPAIRED ON HORIZONTAL PRESSURE DECK WEB BTW RBL 40 TO RBL 60 ON BS 663 TO BS 675 IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2 AND DWG 144A7710 REV A SEE INDIVIDUAL SIGN OFF BELOW;[04] CORRECTED STEP 2. <BR>PERFORMED PERMANENT REPAIRED ON HORIZONTAL PRESSURE DECK WEB BTW RBL 40 TO RBL 60 ON BS 663 TO BS 675 IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2 AND DWG 144A7710 REV A RII;SEE INDIVIDUAL SIGN OFF BELOW.

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