Service difficulty report · Skin · Boeing 7377H4

Difficulty date
March 12, 2022
Submitted
April 8, 2022
Operation
Air carrier
Aircraft
N468WN
Make and model
Boeing 7377H4
Aircraft serial
33858
Aircraft time
58,378 hours, 34,580 cycles
Part
Skin
Condition
Debonded
Location
Fuselage
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

PANEL 193AL HAS DISBOND ON INNER SURFACE CORE AREA; MARKED / [01] IDENTIFIED PANEL IAW SRM 53-40-70-0I-1 FIG 2 TABLE 2 ITEM 7. <BR><BR>DAMAGE TO INNER SURFACE CORE AREA IS BEYOND ALLOWABLE DAMAGE LIMITS IAW SRM 53-40-70-1A-1 PARA 4.A (6). <BR><BR>DAMAGE TO (1EA) AREA WILL BE REPAIRED IAW SRM 51-70-05-2R-1 AS GIVEN IAW SRM 53-40-70-2R-1 PARA 4.B (1); 4.D; AND TABLE 201. <BR><BR>REMOVED DAMAGE ON INNER SURFACE CORE AREA (1.4' X 1.4'); WITH NO DAMAGE TO HONEYCOMB CORE ALL IAW SRM 51-70-05-2R-1 PARA 4.A - 4.D.;[02] VALIDATED APPLICABILITY OF REPAIR TO BE COMPLETED IAW SRM 51-70-05-2R-1.;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2<BR><BR>VALIDATED REPAIR PER SRM 51-70-05-2R-1.;[04] FABRICATED AND INSTALLED REPAIR PLIES USING FIBERGLASS BMS 8-139; STYLE 120; LOT# 1478251-1 AND FILM ADHESIVE BMS 5-154; TYPE 2/3; CLASS 2; GRADE 5; LOT# 1479027-3. <BR>VACUUM BAGGED REPAIR; CHECKED VACUUM BAG LEAKS; VACUUM BAG CHECKED GOOD AND SET REPAIR TO CURE. WORK ACCOMPLISHED IAW SRM 51-70-05-2R-1 PAR 4.C-E. <BR><BR>CALIBRATED TOOLS USED: <BR>VACUUM GAUGE ID: ATS2545; S/N: 542505520 <BR>HOT BOND MACHINE ID: NCX000526; S/N: 12051216;

More about the Boeing 737-7H4