Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
June 18, 2022
Submitted
July 27, 2022
Operation
Air carrier
Aircraft
N486WN
Make and model
Boeing 7377H4
Aircraft serial
33852
Aircraft time
59,624 hours, 35,506 cycles
Part
Attach Angle
Condition
Cracked
Location
Fuselage
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

B.S. 663 LOWER COMPOSITE BULKHEAD UPPER ATTACH ANGLE IS CRACKED AT L.B.L. 45; W.L. 165. / [01] CRACKED ON UPPER ATTACH ANGLE B.S. 663 LOWER COMPOSITE BULKHEAD AT L.B.L. 45; W.L. 165. P/N 111A1322-5; FOUND TO BE OUT LIMITS DUE TO NO ALLOWABLE DAMAGE IN SRM; IT WILL BE REPAIRABLE BY REPLACEMENT I.A.W SRM 51-10-02-0G PAR 9C .;[02] VERIFIED CORRECTIVE ACTION 1.;[03] REMOVED UPPER ATTACH ANGLE B.S. 663 LOWER COMPOSITE BULKHEAD AT W.L. 165. P/N 111A1322-5 I.A.W. SRM 51-40-02-0G-0.;[04] CORRECTED STRUCTURAL CLASSIFICATION;[05] RECEIVED ATTACH ANGLE ITEM HFAB53-AA-002; LOT. 1484408-1. LOCATED AND DRILLED ATTACH ANGLE LOCATED BTW BS.663 LBL 5 - LBL55 WL 165 I.A.W. SRM 51-40-05-0G-0; DWG# 111A1000. OK TO APPLY TREAT AND PRIME ATTACH ANGLE.;[10] INSTALLED ATTACH ANGLE LOCATED BTW BS.663; LBL 5 - LBL55; WL 165 I.A.W. SRM 51-40-02-0G-0; DWG# 111A1000.

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