Service difficulty report · Rib · Boeing 7377H4

Difficulty date
November 18, 2022
Submitted
December 20, 2022
Operation
Air carrier
Aircraft
N211WN
Make and model
Boeing 7377H4
Aircraft serial
34163
Aircraft time
58,988 hours, 35,116 cycles
Part
Rib
Condition
Cracked
Location
Horizontal 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

R/H HORIZONTAL STAB INTERNAL SURFACE RIB 5 HSS 129.50 STIFFENER 2 CRACKED. CUT AND REMOVED DAMAGE FROM THE VERTICAL STIFFENER PER REF. SRM 55-10-09-2R-4. LOCATED AND DRILLED REPAIR PARTS AND RIB PER REF SRM 51-40-05-0G-0, INSTALLED REPAIR PARTS WITH BMS 5-95 SEALANT BETWEEN MATING SURFACES PER REFERENCE SRM 51-40-02-0G-0 AND SRM 51-20-05-0G-0. CUT AND REMOVED DAMAGE FROM THE VERTICAL STIFFENER IAW SRM 55-10-09-2R-4. LOCATED AND DRILLED REPAIR AND RIB IAW SRM 51-40-05-0G-0. TREATED AND PRIME REPAIR AND RIB IAW AMM 51-21-41-370-802 AND AMM 51-21-72-370-804, INSTALLED REPAIR IAW SRM 51-40-02-0G-0 & SRM 51-20-05-0G-0.

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