Service difficulty report · Barrier · Boeing 7377H4

Difficulty date
March 4, 2022
Submitted
April 18, 2022
Operation
Air carrier
Aircraft
N947WN
Make and model
Boeing 7377H4
Aircraft serial
36924
Aircraft time
38,976 hours, 23,532 cycles
Part
Barrier
Condition
Cracked
Location
R/H Mlg W/W
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

RIGHT MLG WHEEL WELL VAPOR WEB FIBERGLASS PANEL CRACKED WITH TEMPORARY REPAIR AT B.S. 663.75 R.BL. 35'. / [01] MESUREMENT;[02] CLEANED AREA AND STOP DRILL CRACK AT R/H MLG WHEEL WELL VAPOR BARRIER AS PER BOEING 737 SRM 51-70-04-2R-10 REPAIR 10.;[03] PERFORMED DRY PROCESS AT R/H VAPOR BARRIER AT R/H MLG WHEEL WELL VAPOR BARRIER SRM 51-70-04-2R-10. REPAIR 10.BONDER ID#162640 DUE 02-JUN-22.;[04] OK TO REPAIR VAPOR BARRIER;[05] VERIFIED STEPS #1; #2 AND #3.;[06] OK TO ACCOMPLISH REPAIR.;[07] REPAIRED R/H MLG WHEEL WELL VAPOR BARRIER AS PER BOEING 737 SRM 51-70-04-2R-10. REPAIR 10. MATERIAL USED EY3804 A/B PO#1746221 PLUS BMS9-3-120 TYD CL 7 PO#1690463.;[08] PERFORMED TAP TEST ON REPAIR AREA FOUND NO DELAMINATION AS PER BOEING 737 NTM 51-05-01;[09] VERIFIED STEPS #7 AND #8;[10] APPLIED PRIMER AT VAPOR BARRIER AS PER REF B737-700 SOPM 20-41-02;[11] APPLIED TEFLON PAINT AT VAPOR BARRIER IN THE EXTERIOR SURFACE AS PER REF B737-700 AMM 51-21-81-370-802;[12] VERIFIED STEPS #10 AND #11;[13] VERIFIED MEASUREMENTS ON TABLE.;[14] CLEANED RH VAPOR BARRIER FOR REPAIR ;STOP DRILL CRACK; PERFORMED DRY OUT FOUND NO WATER AND REPAIRED DAMAGE AREA WITH A PERMANENT REPAIR AS PER B737SRM 51-70-04-2R-10 PERFORMED TAP TEST ON REPAIRED AREA FOUND NO DELAMINATION AS PER B737 NDT 51-05-01 SECTION 5 ;PRIMED AND TOP COAT AS PER AMM 51-21-81-370-802MATERIALS USED PO# 167389; PO#1690463; PO#1723513; PO#1735348;[15] VERIFIED STEP #13 AND STEP #14

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