Service difficulty report · Web · Boeing 7377H4

Difficulty date
May 30, 2023
Submitted
June 20, 2023
Operation
Air carrier
Aircraft
N418WN
Make and model
Boeing 7377H4
Aircraft serial
29823
Aircraft time
71,436 hours, 42,247 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 WEB HORIZONTAL LOCATED BS663.75 AT RBL16 AT CENTER WING BOX 2023-361017<[01] REPAIRED FUSELAGE FLOOR STRUCTURE PRESSURE DECK WEB BSTA 663.75 TO BSTA 675 & RBL 60 TO BL 0 IAW EA#23-153-01750-WIP1 (TTG8Q00LDPMK); EA#23-153-01750-WIP2 (TTG8Q00LFYE1); EA# 23-153-01750-WIP3 (TTG8Q00LC3ZW) SEE INDIVIDUAL SIGN OFF BELOW.;[02] CORRECTED STEP 1. REPAIRED FUSELAGE FLOOR STRUCTURE PRESSURE DECK WEB BSTA 663.75 TO BSTA 675 & RBL 60 TO BL 0 IAW EA#23-153-01750-WIP1 (TTG8Q00LDPMK); EA#23-153-01750-WIP2 (TTG8Q00LFYE1); EA# 23-153-01750-WIP3 (TTG8Q00LC3ZW) AND EA#23-153-01750 (TTG8Q00LNQR1) SEE INDIVIDUAL SIGN OFF BELOW.;[03] CERTIFIED RII MAJOR REPAIR PERFORMED. <BR>SEE INDIVIDUAL SIGNOFFS BELOW.

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