Service difficulty report · Panel · Boeing 7377H4

Difficulty date
April 28, 2023
Submitted
June 13, 2023
Operation
Air carrier
Aircraft
N222WN
Make and model
Boeing 7377H4
Aircraft serial
34290
Aircraft time
58,122 hours, 34,829 cycles
Part
Panel
Part number
UNKNOWN
Condition
Cracked
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/H WING T/E ACCESS PANEL 561AB INTERNAL SKIN SURFACE HAS CRACKS AROUND MULTIPLE FASTENER HOLES.<[01] MEASUREMENT;[02] CLEANED AND PREPARED AREA AT L/H WING ACCESS PANEL 561AB; REPAIRED DAMAGE AREAS AT L/W ACCESS PANEL #561AB AS PER SRM 51-70-04-2R-9 .MATERIAL USED BMS9-3-120TYD CL7 PO#1690463 PLUS EY3804 A/B PO# 2008859; APPLIED TOP COAT AT L/H WING T/E ACCESS PANEL 561AB INTERNAL SKIN SURFACE AS PER AMM-51-21-73-370-803; AND SRM 51-70-04-2R-9-REPAIR 9-REPAIR OF DAMAGE TO A FASTENER HOLE WITH LAMINATING RESIN AND CHOPPED FIBER.;[03] VERIFIED STEP 1 AND 2

More about the Boeing 737-7H4