Service difficulty report · Panel · Boeing 7377H4

Difficulty date
August 4, 2022
Submitted
August 23, 2022
Operation
Air carrier
Aircraft
N490WN
Make and model
Boeing 7377H4
Aircraft serial
32476
Aircraft time
59,880 hours, 35,571 cycles
Part
Panel
Part number
621GB
Condition
Delaminated
Location
Rh 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

R/W FUELING PANEL 621GB HAS DELAMINATIONS TO INNER SURFACE (MARKED) / [01] IDENTIFIED PANEL IAW SRM 57-41-01-0I-4 FIG 1; DRAWING 116A8500 PL SHT 15; DRAWING 116A8520 & 116A8501; AND AIPC 57-40-00-51 ITEM 100. DAMAGE IS BEYOND ALLOWABLE DAMAGE LIMITS IAW SRM 57-41-01-1A-1 PARA 4.D (5)(B)1). DAMAGE IS TO BE REPAIRED IAW SRM 51-70-05-2R-1 AS GIVEN IAW SRM 57-41-01-2R-1 PARA 4.B(1) TABLE 201. 350 DEGREE PREPREG REPAIR. REMOVED DAMAGE TO INNER SURFACE AND TAPER SANDED REPAIR AREAS AT (5EA) LOCATIONS ALL IAW SRM 51-70-05-2R-1 PARA 4.A & 4.B.;[02] VALIDATED APPLICABILITY OF REPAIR TO BE COMPLETED IAW SRM 51-70-05-2R-1.;[03] INSPECTED AND VERIFIED CORRECTIVE ACTIONS 1 AND 2.;[04] FABRICATED REPAIR PLIES FROM BMS 8-139ST1581 LOT#1491914-1 AND ADHESIVE BMS 5-154GR5 LOT#1493149-1; INSTALLED; VACUUM BAGGED; LEAK CHECK GOOD WITH VACUUM GAUGE ID:ATS2545 CAL DUE 08/2022 IAW SRM 51-70-05-2R-1 PARA 4C-D.<BR>REPAIR NEEDS CURE;[05] CURED REPAIR WITH HOTBONDER ID:ATS883 CAL DUE 10/2022; UNBAGGED AND LIGHTLY SANDED IAW SRM 51-70-05-2R-1 PARA 4E;G.;[06] VERIFIED CORRECTIVE ACTION ITEMS 4 AND 5. UT INSPECTED REPAIR PER NDTM PART 4; 51-00-02. NO DISBONDS NOTED.<BR>CAL ID: ATS2342 S/N: 190848504 DUE: 07/2023;[07] R/W FUELING PANEL 621GB DELAMINATION'S TO THE INNER SURFACE WERE REPAIRED IAW SRM 51-70-05-2R-1.;[08] FINAL INSPECTION. JOB COMPLETE PER SRM 51-70-05-2R-1.

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