SDR ASAA2020090143163

Service difficulty report · Skin · Boeing 737890

Difficulty date: September 1, 2020
Submitted: September 15, 2020
Operation: Air carrier
Aircraft: N579AS
Make and model: Boeing 737890
Aircraft serial: 35187
Aircraft time: 49,700 hours, 14,727 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Part number: 182A40014
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

RT HORIZONTAL LOWER SKIN HAS A CRACK AT STA 129, 16 INCHES FROM T/E. GROUNDED - YES. REPAIRED RT HORIZONTAL STAB LOWER SKIN, IAW B737-800 SRM 55-10-01-2R-11. THIS IS A CATEGORY B REPAIR. INSPECTION THRESHOLD IS SET AT 56,000 CYCLES, INTERVAL IS 9,000 CYCLES. SEE B737-800 SRM 55-10-01-2R-11 TABLE 204 FOR METHODS.