Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
September 27, 2022
Submitted
October 19, 2022
Operation
Air carrier
Aircraft
N8644C
Make and model
Boeing 7378H4
Aircraft serial
35973
Aircraft time
26,784 hours, 12,542 cycles
Part
Attach Angle
Condition
Corroded
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

AFT CARGO BAY ATTACH ANGLE COMMON TO SHIELD FWD OF CARGO DOOR HAS AREAS OF CORROSION AT NUT PLATE HOLES BS767 TO BS787 RBL21 WL156 / [01] EVALUATED CORROSION ON ATTACH ANGLE BS 767 TO 787 RBL 21 WL 156; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0;[02] VERIFIED CORRECTIVE ACTIONS STEP 1.;[03] VERIFIED MEASUREMENTS TABLE.;[04] REMOVED ANGLE SHIELD ACB BS767 TO BS787 RBL21 WL156 PER SRM 51-40-02-0G-0;[05] LOCATED AND DRILLED NEW ANGLE SHIELD ACB BS767 TO BS787 RBL21 WL156 PER SRM 51-40-05-0G-0 AND DWG 146A8123 AND OK TO INSTALL.;[06] VERIFIED CORRECTIVE ACTION 5;[07] INSTALLED NEW ANGLE SHIELD ACB BS767 TO BS787 RBL21 WL156 PER SRM 51-40-02-0G-0 AND DWG 146A8123.;[08] VERIFIED CORRECTIVE ACTION #7;[09] CARD COMPLETE

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