SDR ASAA2026070967332

Service difficulty report · Skin · Boeing 737890

Difficulty date: July 9, 2026
Submitted: July 16, 2026
Operation: Air carrier
Aircraft: N579AS
Make and model: Boeing 737890
Aircraft serial: 35187
Aircraft time: 68,512 hours, 20,697 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Part number: 182A4001
Part serial: UNK
Condition: Cracked
Location: Zone 300
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

CRACK INDICATION FOUND: R/H HORZ. STAB. LOWER SKIN SURFACE, STA. 147.90 I/B OF I/B ROW OF FASTENERS, MARKED 1"L, 8" FWD OF AFT SPAR. GROUNDED - YES. REPAIRED THE R/H HORIZ STAB LOWER SKIN AT STA 147.90 USING MAT .100 2024T3 AND .063 2024T3 PER B737-800 SRM 55-10-01-2R-11. REPAIR IS A CAT "B" WITH AN INSPECTION THRESHOLD 56.000 TFC AND INTERVAL 9,000 FC.