Service difficulty report · Rib · Boeing 737823

Difficulty date
September 8, 2021
Submitted
September 13, 2021
Operation
Air carrier
Aircraft
N812NN
Make and model
Boeing 737823
Aircraft serial
33520
Aircraft time
35,855 hours, 14,586 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
Stage of operation
IN
How discovered
V
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

AIRCRAFT IN BASE MAINTENANCE: CRACK IN RIB OF LH HORIZONTAL STABILIZER ON 2ND STIFFENER FROM FRONT SPAR AT STA 92.70, MEASURING L=0.25 IN, W=0.002 IN. ACCOMPLISHED PERMANENT REINFORCING REPAIR WITH NESTED ANGLES IAW SRM 55-10-09.