SDR AALA202108207016

Service difficulty report · Stiffener · Boeing 737823

Difficulty date: August 18, 2021
Submitted: August 20, 2021
Operation: Air carrier
Aircraft: N802NN
Make and model: Boeing 737823
Aircraft serial: 31073
Aircraft time: 35,325 hours, 14,474 cycles
System (JASC): 5510 · Horizontal Stabilizer Structure
Part: Stiffener
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 VERTICAL STIFFENER OF LH HORIZONTAL STABILIZER RIB AT STA 101.9, 18.0 IN AFT OF FRONT SPAR, MEASURING L=0.5 IN, W=0.003 IN, D=0.05 IN. ACCOMPLISHED PERMANENT REINFORCING DOUBLER REPAIR IAW SRM 55-10-09-2R-4.