Service difficulty report · Panel · Boeing 7377H4

Difficulty date
March 12, 2022
Submitted
March 31, 2022
Operation
Air carrier
Aircraft
N763SW
Make and model
Boeing 7377H4
Aircraft serial
27877
Aircraft time
74,817 hours, 44,183 cycles
Part
Panel
Part number
193AR
Condition
Delaminated
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 193AR HAS DELAMINATION TO OUTER SKIN OVER CORE AREA (MARKED) / [01] IDENTIFIED PANEL 193AR IAW SRM 53-40-70-0I-1 FIGURE 2; SHEET 1; TABLE 2; ITEM 18. DAMAGE NOTED IS OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-40-70-1A-1 PAR 4A(6). REPAIR TO BE ACCOMPLISHED IAW SRM 51-70-05-2R-1 PER SRM 53-40-70-2R-1 PAR 4B(1).;[02] REMOVED DAMAGED SKIN PLIES ABOVE HONEYCOMB CORE; NO CORE DAMAGE NOTED; CLEANED; IAW SRM 51-70-05-2R-1 PAR 4A-B.;[03] VALIDATED APPLICABILITY OF REPAIR TO BE COMPLETED IAW SRM 51-70-05-2R-1.;[04] VERIFIED CORRECTIVE ACTION 1-3;[05] FABRICATED REPAIR PLIES OUT OF BMS 8-79 ST 120 LOT#1483750-1; BMS 8-79 ST 1581 LOT#1479026-1; AND BMS 5-129 GR5 LOT#1483858-1; INSTALLED; VACUUM BAGGED AND CHECKED FOR LEAKS USING PRESSURE GAGE ID:ATS2441 S/N:UNKNOWN IAW SRM 51-70-05-2R-1 PAR 4C-D.;[06] REPAIR CURED IAW SRM 51-70-05-2R-1 PARA 4 STEP E ; REF CAL TOOL HOT BONDER ID ATS8883 SN 15112530.;[07] VERIFIED CORRECTIVE ACTIONS 5 AND 6;[08] ACCOMPLISHED UT INSPECTION IAW D6-37239 PART 4; 51-00-02; NO DISBONDS. ATS2342 E650;[09] APPLIED BMS10-21 TYPE III CONDUCTIVE COATING ; CURED THEN TESTED GOOD IAW AMM 51-21-71-370-801 PARA 3 D STEPS 1-4 & 7 REF CAL TOOL MULTIMETER ID ATS1508 SN 32130497 .<BR>RESTORED THE FINISH IAW SRM 51-70-05-2R-1 PARA 4 STEP G & AMM 51-21-99-300-802 PARA 3 C (3) (A)-(F) .;[10] VERIFIED CORRECTIVE ACTION #9

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