Service difficulty report · Panel · Boeing 7377H4

Difficulty date
March 8, 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
Panel
Part number
194E
Condition
Elongated
Location
Belly Fairing
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

LOWER FUSELAGE FAIRING PANEL #194E SEVERAL SCREW HOLES ARE ELONGATED. / [01] CLEANED AND PREPARED LOWER FUSELAGE FAIRING PANEL #194E FOR REPAIR ON ALL ATTACHMENT HOLES AS PER B737 SRM 51-70-05-2R-8 AND AD 2020-03-10;[02] PERFORMED DRY OUT ON LOWER FUSELAGE FAIRING PANEL #194E ; FOUND NO WATER .AS PER B737 SRM 51-70-05-2R-8;[03] VERIFIED STEPS 1 AND 2 AND OK TO INSTALL REPAIR;[04] REPAIRED ALL ATTACHMENT HOLES WITH A PERMANENT REPAIR ON LOWER FUSELAGE FAIRING PANEL #194E AS PER B737 SRM 51-70-05-2R-8. MATERIALS USED PO# 1759850 AND PO# 1759636;[05] ALSO REPAIRED ALL DAMAGE ATTACHMENT HOLES ON LOWER FUSELAGE FAIRING PANEL #194E AS PER AD 2020-03-10 AND EO 5351-1-14642-NG;[06] PERFORMED TAP TEST ON REPAIRED AREA OF FAIRING PANEL #194E LOWER SURFACE AND UPPER SURFACE AREAS. FOUND NO DELAMINATION AS PER B737 NDT 51-05-01 SECTION 5;[07] VERIFIED STEPS #4; #5; AND #6.;[08] DRILLED HOLES ON PANEL AT REPAIR EDGE PER B737-700 SRM 51-40-05 AND COUNTERSINKED PER 51-40-08;[09] VERIFIED STEP 8 (B737-700 SRM 51-40-05-0G-0 AND COUNTERSINKED PER 51-40-08-0G-0);[10] OK TO TOP COAT;[11] APPLIED TOP COAT AT PANEL #194E EXTERNAL SURFACE AMM 51-21-73-370-803;[12] VERIFIED STEP 11.

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