Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
August 2, 2021
Submitted
September 14, 2021
Operation
Air carrier
Aircraft
N491WN
Make and model
Boeing 7377H4
Aircraft serial
33867
Aircraft time
53,758 hours, 31,898 cycles
Part
Attach Angle
Condition
Corroded
Location
Bs 775 Rbl 19
Stage of operation
IN
How discovered
V
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

CORROSION ON ATTACH ANGLE AT AFT CARGO BAY BS775 RBL19 WL155. MARKED ; / [01] EVALUATED CORROSION; 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 ACTION 1 PER SRM 51-10-02-0G-0; [03] REMOVED ATTACH ANGLE AT BS 775 RBL 19; WL 155 PER SRM 51-40-02-0G-0.; [04] RECEIVED FABRICATED ATTACH ANGLE (CLIP); P.O.# 832536.; [05] LOCATED; DRILLED & DEBURRED NEW CLIP PER SRM 51-40-05-0G-0; DWG 146A0081; APPLIED A CHEMICAL CONVERSION COATING PER AMM51-21-41-370-802.; [06] VERIFIED CORRECTIVE ACTIONS 4 AND 5; [07] PRIMED ATTACH ANGLE (CLIP) PER AMM 51-21-72-370-804; OK TO INSTALL!; [08] VERIFIED PRIMED ATTACH ANGLE (CLIP) PER AMM 51-21-72-370-804; OK TO INSTALL; [09] INSTALLED ATTACH ANGLE (CLIP) BS 775 RBL19; WL 155 PER SRM 51-40-02-0G-0; & DWG 146A0081.; [10] VERIFIED INSTALLED ATTACH ANGLE (CLIP) BS 775 RBL19; WL 155 PER SRM 51-40-02-0G-0; & DWG 146A0081.

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