Service difficulty report · Rib · Boeing 7377H4

Difficulty date
September 18, 2021
Submitted
September 22, 2021
Operation
Air carrier
Aircraft
N793SA
Make and model
Boeing 7377H4
Aircraft serial
27888
Aircraft time
67,300 hours, 39,722 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LHS # 5 RIB SUSPECT CRACK AT STIFFENER #3 LWR AREA. PERFORMED HFEC INSPECTION ON RIB AREA IAW NDT PART 6 51-00-00 PROC. 23. CRACK CONFIRMED. PERFORMED HFEC AT CUTOUT IAW NDTM PART 651-00-00 PROCEDURE 23. NO CRACKS. INSPECTED. AREA PER 55-10-09-2R-4 4E NO DEFECTS. LOCATED AND DRILLED REPAIR IAW SRM 55-10-09-2R-4, REPAIR 4. APPLIED ALODINE AND PRIMER IAW SRM 51-20-01-0G-0. INSTALLED REPAIR IAW SRM 55-10-09-2R-4 REPAIR 4.

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