Service difficulty report · Panel · Boeing 737

Difficulty date
February 26, 2022
Submitted
March 28, 2022
Operation
Air carrier
Aircraft
N238WN
Make and model
Boeing 737
Aircraft serial
34713
Aircraft time
53,117 hours, 31,534 cycles
Part
Panel
Part number
561BB
Condition
Pulled
Location
Lh 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 T/E PANEL 561BB HAS SEVERAL PULLED FASTENER HOLES )MARKED) / VALIDATED REPAIR PER SRM 51-70-04-2R-9;[06] CURED SLURRY; SANDED SLURRY TO CONTOUR; CLEANED REPAIR AREAS; FABRICATED REPAIR PLIES FROM BMS 9-3 LOT 1475360-2; INSTALLED REPAIR PLIES WITH 9390 RESIN LOT JH1GAA7833; VACUUM BAGGED AND SET FOR CURE IAW SRM 51-70-04-2R-9 PARA 4.F-M<BR><BR>HOT BONDER ID ATS883 SN 15112530;[07] CURED REPAIR; UNBAGGED; LIGHTLY SANDED IAW SRM 51-70-04-2R-9 PARA 4.M AND 4.P;[08] VERIFIED CORRECTIVE ACTION STEP 6 AND 7.;[09] UT INSPECTED POST CURE IAW 737 NDTM PART 4 51-00-02; NO DISBONDS NOTED. <BR>EQUIP USED: EPOCH 650 ID: ATS2031;[10] INNER SURFACE:<BR>APPLIED AND CURED SEALER RESIN 3501 LOT 1183B1111W IAW SRM 51-70-04-2R-9D PARA 4.P;[11] LOCATED; DRILLED AND COUNTERSANK FASTENER LOCATIONS IAW SRM 51-70-04-2R-9 PARA 4N.<BR>APPLIED CONDUCTIVE COATING TO OUTER SURFACE; RESISTIVITY TESTED GOOD WITH MULTIMETER ID:E9274 S/N:66430502 IAW AMM 51-21-71-370-801 PARA 3D(1-4)(7).<BR>REFINISHED INNER AND OUTER SURFACE OF PANEL IAW SRM 51-70-04-2R-9 PARA 4P.;DAMAGED FASTENER HOLES WERE REPAIRED IAW SRM 51-70-04-2R-9. REPAIR COMPLETE.