Service difficulty report · Panel · Boeing 7377H4

Difficulty date
January 3, 2023
Submitted
February 8, 2023
Operation
Air carrier
Aircraft
N209WN
Make and model
Boeing 7377H4
Aircraft serial
32484
Aircraft time
59,684 hours, 35,490 cycles
Part
Panel
Part number
NOTREPORTED
Condition
Pulled
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

L/W PANEL 561BB HAS PULLED FASTENER HOLES (MARKED)<APPLIED SLURRY MIXTURE OF CHOPPED FIBERS AND LAMINATING RESIN BMS8-301 CL1 LOT#JH2EAA8895 TO FASTENER HOLES; AND SET TO CURE USING HOT BONDER ID: NCX000523 DUE:06/2023 IAW SRM 51-70-04-2R-9 PAR.4 D-F;[05] CURED POTTING; SANDED FLUSH AND CLEANED REPAIR AREA IAW SRM 51-70-04-2R-9 PARAGRAPH 4.F-I.SET PLIES TO CURE AND CURED PLIES WITH A HEAT LAMP USING THERMOMETER ID: ATS2208 DUE: 10/2023; UNBAGGED PLIES AND LIGHTLY SANDED PLIES; WORK PERFORMED IAW SRM 51-70-04-2R-9 PARAGRAPH 4.K-M AND P.;[11] INSPECTED CORRECTIVE ACTIONS 9 AND 10.;[12] PERFORM POST CURE NDI IAW SRM 51-70-04-2R-9 PARAGRAPH 4.O;[13] POST REPAIR UT INSPECTED PER 737NDT PART 4 51-00-02. NO DEFECTS FOUND. TOOL E650 ATS2342 DUE 07/2023.;[14] APPLIED AND CURED CONDUCTIVE COATING; PERFORMED SATISFACTORY RESISTIVITY TEST WITH MULTIMETER ID: ATS1658 DUE: 03/2023; WORK PERFORMED IAW AMM 51-21-71-370-801 PARAGRAPH 3.D.(1-4) AND (7).(B);[15] COMPLETED THE POST REPAIR REQUIREMENTS. REDRILLED THE FASTENER HOLES & RESTORED THE INNER & OUTER FINISH USING BMS10-103 PRIMER & BMS10-60 ENAMEL IAW SRM 51-70-04-2R-9 PARA 4 STEPS N & P.;[

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