Service difficulty report · Frame · Boeing 7377H4

Difficulty date
June 8, 2023
Submitted
July 11, 2023
Operation
Air carrier
Aircraft
N963WN
Make and model
Boeing 7377H4
Aircraft serial
36676
Aircraft time
38,123 hours, 23,431 cycles
Part
Frame
Part number
UNKNOWN
Condition
Cracked
Location
Zn 200 Fus Top
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

L1 DOOR CUTOUT UPPER 312 FRAME HAS A SMALL CRACK. L1 DOOR CUTOUT UPPER 312 FRAME HAS A SMALL CRACK. MARKED. BS 312 LBL 36 WL 282.1 LBL 36.<[01] REMOVED CRACK ON FRAME AT BS 312 LBL 33 WL 296 REWORKED AREA L=1.5 X W=0.040 IAW EA M-22-153-01244;[02] VERIFIED ACTION 1;[03] ALL STEPS COMPLETE;[04] COMPLETED ALL STEPS;[05] VERIFIED MEASUREMENT TABLE AND CORRECTIVE ACTION 4;[06] REPAIRED L1 DOOR CUTOUT UPPER FRAME BS 312 IAW EA: M-22-153-01244;[07] VERIFIED CORRECTIVE ACTION 6

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