Service difficulty report · Rib · Boeing 737

Difficulty date
June 22, 2022
Submitted
July 6, 2022
Operation
Air carrier
Aircraft
N845NN
Make and model
Boeing 737
Aircraft serial
40579
Aircraft time
35,529 hours, 14,464 cycles
Part
Rib
Condition
Cracked
Location
Zone 300 - Stabs
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 FOUND ON LEFT HORIZONTAL STABILIZER RIB STIFFENER LOCATED AT STABILIZER STA 101.9 AND WATER LINE 0. INSTALLED RIB REINFORCEMENT REPAIR PER SRM 55-10-09-2R-4.