Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
August 14, 2023
Submitted
August 24, 2023
Operation
Air carrier
Aircraft
N413WN
Make and model
Boeing 7377H4
Aircraft serial
29819
Aircraft time
72,820 hours, 42,792 cycles
Part
Stiffener
Part number
UNKNOWN
Condition
Cracked
Location
Zn 300 Stabilize
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

REJECTED: L/H H-STAB RIB #7 STIFFENER #4 UPPER RADIUS CRACKED: SRM APPLICABILITY VALIDATION FOR REPAIR; AND NDT/VISUAL INSPECTIONS NOT PERFORMED AFTER DAMAGE REMOVAL.<[01] L/H H-STAB RIB #7 STIFFENER #4 UPPER RADIUS CRACKED: ACCOMPLISHED ON COSTUMER CARD TTG8Q00MP7C6:<BR>-SRM APPLICABILITY ON STEP 4.<BR>-NDT PERFORMED ON STEP 3.<BR>-GVI PERFORMED ON STEP 8.;[02] VERIFIED CORRECTIVE ACTION 1

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