Service difficulty report · Pressure Blkhd · Boeing 7377H4

Difficulty date
October 2, 2020
Submitted
November 4, 2020
Operation
Air carrier
Aircraft
N429WN
Make and model
Boeing 7377H4
Aircraft serial
33658
Aircraft time
61,054 hours, 35,875 cycles
Part
Pressure Blkhd
Condition
Cracked
Location
Bs 663
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

CRACK INDICATION FOUND AT EXTERIOR SIDE (WHEEL WELL INTERIOR) OF LEFT MAIN WHEEL WELL SPAR VERTICAL PRESSURE WEB AT STA 663 LBL BETWEEN LBL 24.92 AND LBL 31.83 WITH APPROXIMATE LENGTH - 0.118''. REMOVED EXISTING DOUBLER AT VERTICAL PRESSURE WEB REPAIR STA 663 BETWEEN LBL 25 TO LBL 45. CUTOUT DAMAGE AREA AND INSTALLED REPAIR FROM LBL 15 TO LBL 47, REF B737-7 SRM 57-10-10-2R-3 REPAIR 3 ALTERNATIVE 3. THIS IS A CATEGORY B REPAIR.

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