Service difficulty report · Angle · Boeing 7377H4

Difficulty date
April 27, 2023
Submitted
June 1, 2023
Operation
Air carrier
Aircraft
N285WN
Make and model
Boeing 7377H4
Aircraft serial
32536
Aircraft time
51,630 hours, 31,054 cycles
Part
Angle
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

CRACKED ANGLE COMMON TO CABLE GUARD INTERCOSTAL STA 694; RBL 24; WL 203. (MARKED).<[01] REMOVED AGLE AT BS 694; RBL 24;WL 203 IAW SRM 51-40-02<BR><BR>CRACK ON ANGLE IT'S OUT OF LIMITS WILL BE REPAIRED BY REPLACEMENT OF PART IAW SRM 51-10-02 PAR 9.;[02] FABRICATED NEW ANGLE FROM MATERIAL 7075T6#O.050';LOT:1338195-3 IAW DWG:273A9112;ID:0030;REV:- AND DWG: 273A9112;REV:H.;[03] REQUEST OK TO TREAT AND PRIMER NEW ANGLE.;[04] CORRECTION ACTION FOR STEPS 2 AND 3.<BR>FABRICATED NEW ANGLE FROM MATERIAL 7075T0#0.050' CLAD PER QQ-A-250/13; LOT:147A582-1 IAW DWG:273A9112;ID:0030;REV:- AND DWG: 273A9112;REV:H.;[05] VERIFIED CORRECTIVE ACTION #4.;[06] RECEIVED REPAIR PART ITEM HFAB53-BR-012 HEAT TREATED TO T73 RECEIPT NUMBER 1482754 LOT#1482754-1 SWA PO# 857530 LOCATED AND DRILLED IAW SRM 51-40-05-0G-0 APPLIED CHEMICAL CONVERSION COAT AND PRIMED IAW SRM 51-20-01-0G-0 OK TO INSTALL;[07] VERIFIED CORRECTIVE ACTION #6.<BR>VERIFIED OK TO INSTALL ANGLE.;[08] INSTALLED NEW ANGLE COMMON TO CABLE GUARD INTERCOSTAL AT BS694 RBL 24 WL 203 IAW SRM 51-40-02-0G-0 AND BOEING DWG 273A9112.;[09] INSTALLED NEW ANGLE COMMON TO CABLE GUARD INTERCOSTAL AT BS694 RBL 24 WL 203 IAW SRM 51-40-02-0G-0 AND BOEING DWG 273A9110;[10] VERIFIED CORRECTIVE ACTION #9<BR>VERIFIED MEASUREMENTS.

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