Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
November 6, 2021
Submitted
December 28, 2021
Operation
Air carrier
Aircraft
N909WN
Make and model
Boeing 7377H4
Aircraft serial
32458
Aircraft time
45,975 hours, 27,620 cycles
Part
Stiffener
Condition
Cracked
Location
Rh Hor 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

RT HORIZONTAL STAB RIB AT HSS 120.30, CRACKED. REMOVED R/H STAB RIB AT STA 120.30 IAW SRM 51-40-02. REMOVED DAMAGE FROM RIB IAW SRM 55-10-09-2R-4, REPAIR 4. HFEC VERIFIED NO FURTHER DAMAGE IAW NDT 51-00-00 PROCEDURE 6. DRILLED REPAIR. TREATED & PRIMED ALL BARE AREAS ON RIB & REPAIR IAW SRM 55-10-09-2R-4 REPAIR 4. INSTALLED REPAIR ON RIB IAW SRM 55-10-09-2R-4 REPAIR 4. REINSTALLED REPAIRED STAB RIB AT HSS 120.30 PER SRM 51-40-02. REPAIR HORIZONTAL RIB IAW SRM 55-10-09-2R-4 REPAIR 4.

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