Service difficulty report · Panel · Boeing 7378H4

Difficulty date
March 22, 2023
Submitted
April 26, 2023
Operation
Air carrier
Aircraft
N8529Z
Make and model
Boeing 7378H4
Aircraft serial
36974
Aircraft time
19,992 hours, 9,666 cycles
Part
Panel
Condition
Damaged
Location
Zn 500 Left Wing
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

PANEL 521KB DISBONDED AT FWD I/B CORNER.<OUT OF ALLOWABLE LIMITS IAW SRM 57-41-01-1A-1 PARA 4.A.(5).REMOVED DAMAGED PLIES. CLEANED AND PREPARED PANEL IAW SRM 51-70-05-2R-6 PARA 4.A-D.;[02] MEASUREMENT TABLE UPDATED. FABRICATED REPAIR PLIES USING BMS 5-129 TY2 GR05 LOT: 1521552-3; BMS 8-79 CL3 ST120 LOT: 1520138-1; BMS 8-79 CL3 ST1581 LOT: 1513773-1 CURED REPAIR PLIES USING BOND MACHINE ID: NCX000526 CAL DUE: 11/2023; UNBAGGED; TRIMMED; AND SANDED IAW SRM 51-70-05-2R-6 PAR. 4.G AND 4.I.;[06] VERIFIED CORRECTIVE ACTIONS 4 AND 5;[07] REQUEST POST CURE NDI IAW SRM 51-70-05-2R-6 PARA 4.H.;[08] UT INSPECTED REPAIR AREA PER NDTM PT4 51-00-02; NO DISBONDS NOTED<BR>EQUIP ID ATS2341 DUE 06/2023;[09] FABRICATED BONDED ALUMINUM FOIL REPAIR PLY USING BMS 8-289 LOT: 1511321-1<BR>INSTALLED USING BMS 5-128 LOT: 1521411-1<BR>ASSEMBLED VACUUM BAG AND PERFORMED 5X5 LEAK TEST. PASSED USING VACUUM GAUGE ATS2798 DUE: 10/2023<BR>CURED REPAIR PLY USING THERMOMETER ATS2208 DUE: 10/2023<BR>UNBAGGED PANEL AND TRIMMED EXCESS MATERIAL IAW SRM 51-70-14-2R-3 PARA 4.A.(3-5;11)<BR><BR>INSTALLED 1EA BACKUP PLATE IAW SRM 51-40-02-0G-0 PARA 4.B. ALONG WITH DWG: 116A9110 SHEET: 27<BR><BR>REFINISHED PANEL IAW SRM 51-70-05-2R-6 PARA 4.I.;[10] VERIFIED CORRECTIVE ACTION ITEM 9 AND MEASUREMENTS TABLE.;[11] DAMAGE WAS REPAIRED IAW SRM 51-70-05-2R-6 AND SRM 51-70-14-2R-3.<BR><BR>JOB COMPLETE.;[12] VERIFIED CORRECTIVE ACTION ITEM 11; JOB COMPLETE.

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