Service difficulty report · Rib · Boeing 7377H4

Difficulty date
October 12, 2021
Submitted
November 29, 2021
Operation
Air carrier
Aircraft
N777QC
Make and model
Boeing 7377H4
Aircraft serial
30592
Aircraft time
68,673 hours, 40,726 cycles
Part
Rib
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 HORIZ STAB L/E PANEL 331B 4 RIB FROM I/B CRACKED. PERFORMED HFEC INSP ON LH HORIZ STAB L/E PANEL 331B 4 RIB IAW NDT P6 51-00-00 PROC.23. CRACK CONFIRMED. REMOVED DAMAGE RIB IAW SRM 51-40-02-0G-0. LOCATED AND DRILLED A NEW RIB IAW SRM 51-40-05-0G-0. INSTALLED THE NEW RIB IAW SRM 51-40-02-0G-0.

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