SDR ASAA2015092313403

Service difficulty report · Skin · Boeing 737890

Difficulty date: September 23, 2015
Submitted: October 12, 2015
Operation: Air carrier
Aircraft: N523AS
Make and model: Boeing 737890
Aircraft serial: 35194
Aircraft time: 24,602 hours, 8,090 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Part number: 182A4001
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

CRACK FOUND .840" LONG, 8" FWD OF AFT SPAR, RT HORIZONTAL LOWER SKIN INBD OF STABILIZER BS 184.70. ACFT GROUNDED. REPAIRED LOWER SKIN OF RT HORIZONTAL LOWER SKIN AT BS 184.70 IAW SRM 55-10-01-2R-11, INSPECTION THRESHOLD 56,000 CYCLES AFTER REPAIR INSTALLATION, METHOD: DETAIL VISUAL INSPECTION AND EXTERNAL LOW FREQUENCY EDDY CURRENT INSPECTION INTERNAL: 9000 FLIGHT CYCLES, TABLE 204.