SDR ASAA2020100333383

Service difficulty report · Skin · Boeing 737890

Difficulty date: October 3, 2020
Submitted: October 20, 2020
Operation: Air carrier
Aircraft: N592AS
Make and model: Boeing 737890
Aircraft serial: 35190
Aircraft time: 46,646 hours, 13,933 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Part number: 186A100041
Part serial: SAIC1147
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

LT HORIZONTAL LOWER SKIN HAS A CRACK AT STA 147 10 INCHES FROM TRAILING EDGE, DOT 154-001. GROUNDED-YES. REPAIRED CRACK AT STA 147 ON LT HORIZONTAL LOWER SKIN, IAW B737-800 SRM 55-10-01-2R-11. REPAIR IS A CATEGORY B REPAIR WITH INSPECTION REQUIREMENTS AS FOLLOWS: THRESHOLD 56,000 CYCLES & 9,000 CYCLE INTERVALS.