SDR AALA202110011163

Service difficulty report · Skin · Boeing 737*

Difficulty date: September 20, 2021
Submitted: October 1, 2021
Operation: Air carrier
Aircraft: N813NN
Make and model: Boeing 737*
Aircraft serial: 30918
Aircraft time: 36,401 hours, 14,790 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
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 IN LOWER SKIN OF RH HORIZONTAL STABILIZER AT STA 129.50, 17.0 IN FROM THE FRONT SPAR, MEASURING L=1.0 IN, W=0.004 IN, D=0.067 IN. ACCOMPLISHED PERMANENT REINFORCING DOUBLER REPAIR IAW SRM 55-10-01-2R-11.