Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
March 25, 2024
Submitted
April 25, 2024
Operation
Air carrier
Aircraft
N924WN
Make and model
Boeing 7377H4
Aircraft serial
36628
Aircraft time
51,375 hours, 31,138 cycles
Part
Attach Angle
Part number
UNKNOWN
Condition
Cracked
Location
Bs 692 Rbl 24
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

CRACKED INTERCOSTAL LOWER ATTACH ANGLE STA 692; RBL 24; WL 204.<[01] REMOVED CRACK DAMAGED LOWER ATTACH ANGLE AT BS 692 RBL 24 WL 204 IAW SRM 51-40-02-0G-0;[02] FABRICATED NEW ATTACH ANGLE FOR BS 692 RBL 24 WL 204 FROM HFAB53-BR-012 (BAC1490-2782 7075 TO CLAD .050 LOT# 1482272-2) HEAT TREATED TO T73 CONDITION ON SWA PO# 857530 DATED 21 FEB 2022 LOCATED AND DRILLED IAW SRM 51-40-05-0G-0 APPLIED CHEMICAL CONVERSION COAT AND PRIMED IAW SRM 51-20-01-0G-0 AND BOEING DWG 273A9112 OK TO INSTALL;[03] VERIFIED ACTION #2; OK TO INSTALL;[04] INSTALLED NEW INTERCOSTAL LOWER ATTACH ANGLE AT STA BS 692 RBL 24 WL 204 IAW SRM 51-40-02-0G-0 AND BOEING DWG 273A9112;[05] VERIFIED CORRECTIVE ACTION #4

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