Service difficulty report · None · Boeing 7377H4

Difficulty date
September 18, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N296WN
Make and model
Boeing 7377H4
Aircraft serial
36613
Aircraft time
46,748 hours, 27,979 cycles
Part
None
Condition
Cracked
Location
L/H Horiz. Stab.
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 HORIZONTAL STAB INSPAR RIB ASSEMBLY AT STAB STA 129.50 HAS HFEC INDICATED CRACK IN LOWER SURFACE AT FIRST FASTENER HOLE FWD OF VERTICAL STIFFENER #3. ; / [01] PERFORMED NDT HOLE PROBE PER NDT PART 6 51-00-00 PRO. 16; VERIFIED CRACK INDICATION.; [02] REMOVED DAMAGED AREA PER SRM 55-10-09-2R-5.; [03] VERIFIED DAMAGED IS REMOVED BY. HFEC; NDT PART 6 51-00-00 PRO 23.; [04] FABRICATED FILLER FROM 7075 T-6 PER SRM 55-10-09-2R-5.; [05] FINAL INSTALLATION OF RIB WITH FILLER ACCOMPLISHED ON NON- ROUTINE CARD TTG8Q006L05G .; [06] INSPECTED FINAL INSTALLATION OF RIB WITH FILLER ACCOMPLISHED ON NON- ROUTINE CARD TTG8Q006L05G .; [07] INSPECTED; [08] INSPECTED

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