Service difficulty report · Stringer Clip · Boeing 7377H4

Difficulty date
June 9, 2021
Submitted
July 19, 2021
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
54,253 hours, 32,244 cycles
Part
Stringer Clip
Condition
Corroded
Location
Bs 947 S19r
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 AREA AFT OF ACB BS947 S-19R WL193. ; / [01] PART HAS NO ALLOWABLE DAMAGE LIMIT ON SRM; REPAIR BY REPLACEMENT PER SRM 51-10-02 STEP 9.C<BR><BR>REMOVED STRINGER CLIP BS 951; STR 19R PER SRM 51-40-02; [02] VERIFIED PART HAS NO ALLOWABLE DAMAGE LIMIT ON SRM; REPAIR BY REPLACEMENT PER SRM 51-10-02 STEP 9.C.; [03] LOCATED; DRILLED; TRIMMED; DEBURRED; CONVERSION COATED AND PRIMERED BS 951 STR19R STRINGER CLIP. MADE FROM EXTRUSION BAC1493-881 7075-T62 CLAD; LOT # 1461708-1 IAW SRM 51-40-05 AND DWG 147A8124; [04] VERIFIED STEP 3 COMPLETE; [05] OK TO INSTALL STRINGER CLIP; [06] OK TO INSTALL; [07] INSTALLED ACB STRINGER CLIP AT BS947 STR19-R; WL193 PER SRM 51-40-020G-0 AND DWG 147A8110; [08] VERIFIED INSTALLED ACB STRINGER CLIP AT BS947 STR19-R; WL193 PER SRM 51-40-020G-0 AND DWG 147A8110; [09] COMPLETED

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