Service difficulty report · Frame · Boeing 7378H4

Difficulty date
January 26, 2025
Submitted
February 27, 2025
Operation
Air carrier
Aircraft
N8608N
Make and model
Boeing 7378H4
Aircraft serial
36638
Aircraft time
40,188 hours, 19,212 cycles
Part
Frame
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
V
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

(CR - VERNON) FOUND FRAME CRACK AT STA 312 BETWEEN S-5L AND S-6L ABOVE L-1 DOOR<[01] REMOVED DAMAGE; FORMED; LOCATED; DRILLED; HFEC CUT OUT; OPEN HOLES AND FPI FORMED ANGLE; NO DEFECTS NOTED; ALODINED; PRIMED; INSTALLED REPAIR ANGLE; AND CIC REF B737-NG SRM 53-10-07-2R-1; THIS IS A CAT B REPAIR - THRESHOLD 50;000 CYC INSPECTION THRESHOLD; 12;000 CYC REPEAT HFEC FROM MANUFACTURED DATE.; [02] VERIFIED REMOVED DAMAGE; FORMED; LOCATED; DRILLED ANGLE; HFEC CUT OUT; OPEN HOLES AND FPI FORMED ANGLE; NO DEFECTS NOTED; ALODINE; PRIMED; INSTALLED REPAIR ANGLE; AND CIC REF B737-NG SRM 53-10-07-2R-1; THIS IS A CAT B REPAIR - THRESHOLD 50;000 CYC INSPECTION THRESHOLD; 12;000 CYC REPEAT HFEC FROM MANUFACTURED DATE; [03] VERIFIED REMOVED DAMAGE; FORMED; LOCATED; DRILLED ANGLE; HFEC CUT OUT; OPEN HOLES AND FPI FORMED ANGLE; NO DEFECTS NOTED; ALODINE; PRIMED; INSTALLED REPAIR ANGLE; AND CIC REF B737-NG SRM 53-10-07-2R-1; THIS IS A CAT B REPAIR - THRESHOLD 50;000 CYC INSPECTION THRESHOLD; 12;000 CYC REPEAT HFEC FROM MANUFACTURED DATE.

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