Service difficulty report · Stringer Clip · Boeing 7377H4

Difficulty date
May 11, 2021
Submitted
June 17, 2021
Operation
Air carrier
Aircraft
N732SW
Make and model
Boeing 7377H4
Aircraft serial
27864
Aircraft time
74,727 hours, 43,976 cycles
Part
Stringer Clip
Condition
Corroded
Location
Bs 787
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

CORROSION ON STRINGER CLIP AT AFT CARGO BAY BS787 RBL6 WL153. ; / FABRICATED STRINGER CLIP AT BS787 RBL6 WL 153; USING BAC1493-878#7075T62; LOT #1459381-2 PER SRM 51-40-05-0G-0; DWG 146A8133; DWG 146A8130. APPLIED A CHEMICAL CONVERSION COATING PER AMM 51-21-41-370-802.;INSTALLED STRINGER CLIP PER SRM 51-40-02-0G-0; DWG 146A8130.;PRIMERED STRINGER CLIP PER SRM 51-21-72-370-804; OK TO INSTALL.;VERIFIED MEASUREMENT TABLE; STRINGER CLIP FOUND TO BE OUT OF LIMITS AND REPLACEMENT PART PER SRM 51-10-02-0G.;CORRECTION TO STEP7; SHOULD BE AMM NOT SRM.;EVALUATED CORROSION ON STRINGER CLIP AT BS787 RBL6 WL153 FOUND TO BE OUT OF LIMITS DUE TO NO ALLOWABLE LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM51-10-02-0G-0;REMOVED STRINGER CLIP BS 787; RBL6; WL 153 PER SRM 51-40-02-0G-0.;UPDATED MEASUREMENT TABLE;VERIFIED PRIMERED STRINGER CLIP PER AMM 51-21-72-370-804; OK TO INSTALL.;VERIFIED INSTALL OF STRINGER CLIP PER SRM 51-40-02-0G-0; DWG 146A8130.;VERIFIED STEP 5.

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