Service difficulty report · Stiffener · Boeing 737823

Difficulty date
July 23, 2021
Submitted
August 11, 2021
Operation
Air carrier
Aircraft
N805NN
Make and model
Boeing 737823
Aircraft serial
31075
Aircraft time
36,163 hours, 14,595 cycles
Part
Stiffener
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

AIRCRAFT IN BASE MAINTENANCE: CRACK IN VERTICAL STIFFENERS OF RH HORIZONTAL STABILIZER RIB AT RH HSTAB STA 92.7 AND 12" AFT, MEASURING L=1.25 IN, W=0.25 IN. ACCOMPLISHED PERMANENT REINFORCING DOUBLER REPAIR IAW SRM 55-10-09-R2-4.