Service difficulty report · Stringer Clip · Boeing 7378H4

Difficulty date
April 28, 2022
Submitted
May 12, 2022
Operation
Air carrier
Aircraft
N8685B
Make and model
Boeing 7378H4
Aircraft serial
36723
Aircraft time
20,280 hours, 9,431 cycles
Part
Stringer Clip
Part number
143A101028
Condition
Cracked
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

STRINGER CLIP CRACKED AT LOWER RIVET (FRAME ATTACH) BS 500I; WL 153; S26LH. UNDER Z ANGLE A225-002 / REMOVED SECTION OF L/H Z-ANGLE STA 500D TO STA 500 I FOR ACCESS IAW SRM 51-40-02-0G-0;DISPLACED L/H SIDE AFT END OF BAFFLE STA 500I AT STR 26 FOR ACCESS IAW SRM 51-40-02-0G-0 DISPLACED LOWER BULKHEAD STRUCTURE AT STA500I STR 24 TO STIR 27 IAW SRM 51-40-02-0G-0;REMOVED 1 QTY FASTENER AT SHEAR TIE FOR ACCESS AT STA 500I BETWEEN STR 26 AND 25 IAW SRM 51-40-02-0G-0 REMOVED CRACKED STR CLIP AT STA 500I STR 26 IAW SRM 51-40-02-0G-0;LOCATED AND DRILLED NEW -28 STR CLIP IAW BOEING DWG 143A1234 REV A;INSTALLED NEW -28 STR CLIP IAW BOEING DWG 143A1234 REV A SRM 51-40-02-0G-0;INSTALLED DISPLACED L/H SIDE AFT END OF BAFFLE STA 500I AT STR 26 IAW SRM 51-40-02-0G-0;INSTALLED 1 QTY FASTENER AT SHEAR TIE AT STA 500I BETWEEN STR 26 AND 25 IAW SRM 51-40-02-0G-0 BOEING DWG 143A1234 REV AAPPLIED CIC ON NEW -28 STR CLIP IAW AMM51-21-91-620-802; INSTALLED L/H Z-ANGLE STA 500D TO STA 500I IAW SRM 51-40-02-0G-0 BOEING DWG 143A7500 REV- REJECT- 1EA FASTENER MISSING FROM LH Z ANGLE AT STA 500I JUST AFT OF BLKHD PANEL LOWER SUPPORT REINSTALLED BULK HEAD STRUCTURE AT STA 500I STR 27L TO STIR 25L IAW SRM 51-40-02-0G-0 REINSTALLED DISPLACED INSULATION L/H SIDE STA 500C TO STA 500I AT STR 26L IAW AMM 25-80-00-400-801 ALSO INSTALLED 1 QTY CHERRYMAX RIVET AT Z-ANGLE BEHIND BULKHEAD STR 26L IAW SRM 51-40-02-0G-0;

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