Service difficulty report · None · Boeing 7377H4

Difficulty date
September 28, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N940WN
Make and model
Boeing 7377H4
Aircraft serial
36900
Aircraft time
40,079 hours, 24,363 cycles
Part
None
Condition
Cracked
Location
R/H Horiz. Stab.
Stage of operation
UK
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

HFEC CRACK INDICATION FOUND ON 2 EACH HOLES ON LOWER FLANGE OF L/H STAB #5 INSPAR RIB. ; / [01] CUT OUT THE DAMAGED AREA PER SRM 55-10-09-2R-5 REPAIR 5.; [02] FABRICATED REPAIR PARTS PER SRM 55-10-09-2R-5 REPAIR 5.; [03] C/W HFEC OF DAMAGE CUTOUT PER NDT PART 6; 51-00-00 PROC 23. NO DEFECTS FOUND.<BR><BR>C/W HFEC OF EXISTING HOLES PER NDT PART 6; 51-00-00 PROC 16. NO DEFECTS NOTED.; [04] PERFORMED GENERAL VISUAL INSPECTION OF REPAIR AREA PER SRM 55-10-09-2R R5. NO DEFECTS FOUND.<BR>OK TO PRIME AND INSTALL REPAIR PARTS.; [05] SEE TTG8Q006PR6N FOR INSTALLATION OF REPAIR PARTS AND OK TO RE-INSTALL STAB RIB; [06] REINSTALLED RIB PER SRM 51-0-02. SEE TTG8Q006PR6N .; [07] VERIFIED RIB INSTALLATION PER SRM 51-00-02 ON NON ROUTINE TTG8Q006PR6N

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