Service difficulty report · Panel · Boeing 7377H4

Difficulty date
June 19, 2023
Submitted
July 17, 2023
Operation
Air carrier
Aircraft
N417WN
Make and model
Boeing 7377H4
Aircraft serial
29822
Aircraft time
71,145 hours, 42,399 cycles
Part
Panel
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

VERTICAL FIN PANEL 324AL LOWER CLIP IS CRACKED<[01] CRACKED ON VERTICAL FIN PANEL 324AL LOWER CLIP WITH NEXT DIMENSION L=3.220 TOOL USED CALIPER 2738; DUE:04/2024; DATE:04/2023 FOUND TO BE OUT LIMITS I.A.W SRM 55-30-01-0L-3 FOR IDENTIFICATION AND DUE TO NO ALLOWABLE DAMAGE IN SRM; IT WILL BE REPAIRABLE BY REPLACEMENT I.A.W SRM 51-10-02-0G PAR 9C;[02] REMOVED LOWER CLIP CRACKED OF PANEL 324AL I.A.W SRM 51-40-02-0G-0.;[03] RECEIVED; LOCATED AND DRILLED NEW LOWER RETAINER CLIP OF PANEL 324AL I.A.W SRM 51-40-05-0G-0 AND DWG 172A6123. OK TO INSTALL.;[04] VERIFIED STEPS 1; 2; 3.;[05] INSTALLED NEW LOWER RETAINER CLIP OF PANEL 324AL I.A.W SRM 51-40-02-0G-0 AND DWG 172A6123.;[06] VERIFIED STEP 5;[07] VERIFIED MEASUREMENTS TABLE.

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