Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
July 7, 2023
Submitted
August 9, 2023
Operation
Air carrier
Aircraft
N965WN
Make and model
Boeing 7377H4
Aircraft serial
36677
Aircraft time
38,362 hours, 23,630 cycles
Part
Support Angle
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

CRACKED SUPPORT ANGLE FOR CHANNEL; BS 692.5 - 694 RBL 24 WL 203<[01] UPDATED MEASUREMENTS TABLE;[02] REMOVED DAMAGED SUPPORT ANGLE FOR CHANNEL FROM BS 692.5 TO BS 694; RBL 24; WL 203 IAW SRM 51-40-02-0G-0;[03] CERTIFY;[04] SRM DOESN'T HAVE ALLOWABLE DAMAGE/REPAIR FOR CRACKED ANGLE. FOUND ANGLE TO BE OUT OF LIMITS. REMOVE AND REPLACE IAW SRM 51-10-02-0G-0 STEP #9.;[05] RECEIVED FROM TOOL ROOM HEAT TREATED ANGLE ITEM: HFAB53-AN-012 LOT: 1534692-1. LOCATED AND DRILLED NEW ANGLE PER SRM 51-40-05-0G-0 AND BOEING DWG 273A9110. APPLIED CHEMICAL CONVERSION COATING TO NEW ANGLE. REQUEST OK TO APPLY PRIMER.;[06] VERIFIED MEASUREMENT TABLE AND CORRECTIVE ACTIONS 4 AND 5. OK TO APPLY PRIMER.;[07] APPLIED CHEMICAL CONVERSION COATING PER SOPM 20-40-03 AND PRIMER PER SOPM 20-41-02 TO THE NEW ANGLE. REQUEST OK TO INSTALL.;[08] VERIFIED CORRECTIVE ACTION 7. OK TO INSTALL.;[09] INSTALLED NEW ANGLE FOR CHANNEL AT BS 692.5 - 694; RBL 24; WL 203 PER SRM 51-40-02-0G-0; SOPM 20-50-01; SRM 51-40-04-0G-0 AND BOEING DWGS 273A9110 AND 111A6000. USED TOOL ID: ATS2657 DUE: 08/2023.;[10] CERTIFIED CORRECTIVE ACTION 9;[11] VERIFIED CORRECTIVE ACTION 9 AND 10

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