Service difficulty report · Panel · Boeing 7378H4

Difficulty date
February 1, 2023
Submitted
March 10, 2023
Operation
Air carrier
Aircraft
N8524Z
Make and model
Boeing 7378H4
Aircraft serial
36970
Aircraft time
20,203 hours, 9,817 cycles
Part
Panel
Condition
Debonded
Location
Zn 100 Fus Lower
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 194BL FWD LOWER CORNER IS DISBONDED.<[01] IDENTIFIED PANEL MATERIAL IAW SRM 53-60-70-0I-1 FIGURE 2; TABLE 2; ITEM [10] AND DWG DOC: 149A7558 ID: 0006<BR><BR>PANEL FWD LOWER CORNER IS OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-60-70-1A-1 PAR. 4.B.(6)<BR><BR>PANEL DAMAGED FWD EDGEBAND CORNER IS REPAIRABLE IAW SRM 51-70-05-2R-6 AS DIRECTED BY SRM 53-60-70-2R-1 PAR. 4.D.<BR><BR>REMOVED DAMAGED FINISH FROM REPAIR AREA TOOLSIDE IAW AMM 51-21-11-150-815 PAR. 17.D.(4)(C)(1)<BR><BR>REMOVED DAMAGED PLIES AND CLEANED REPAIR AREA IAW SRM 51-70-05-2R-6 PAR. 4.A.-D.<BR><BR>UPDATED MEASUREMENTS TABLE.;[02] CORRECTION FOR CORRECTIVE ACTION 1; 'PANEL DAMAGED FWD EDGEBAND CORNER IS REPAIRABLE IAW SRM 51-70-05-2R-6'. TO SAY; 'PANEL DAMAGED FWD EDGEBAND CORNER IS REPAIRABLE IAW SRM 51-70-05-2R-10'. AND 'REMOVED DAMAGED PLIES AND CLEANED REPAIR AREA IAW SRM 51-70-05-2R-6 PAR. 4.A.-D'. TO SAY; 'REMOVED DAMAGED PLIES AND CLEANED REPAIR AREA IAW SRM 51-70-05-2R-10 PAR. 4.A.-C.;[03] VALIDATED REPAIR PER SRM 51-70-05-2R-10;[04] VERIFIED CORRECTIVE ACTIONS 1-3<BR><BR>VERIFIED MEASUREMENTS TABLE<BR><BR>VALIDATED REPAIR PER SRM 51-70-05-2R-10;[05] FABRICATED AND INSTALLED REPAIR PLIES USING BMS8-79 CL3 ST1581 LOT# 1513773-1; BMS8-79 CL3 ST120 LOT# 1512713-2 WITH ADHESIVE BMS5-129 TY2 GRO5 LOT# 1515859-1 SET UP VACUUM BAG SYSTEM WITH LEAK CHECKED GOOD AND SET TO CURE USING HEATCON HOTBONDER ID: ATS532 CAL/DUE: 06/2023 IAW SRM 51-70-05-2R-10 PAR. 4.D.-F.

More about the Boeing 737-8H4