SDR CALA2026040815218

Service difficulty report · Skin · Boeing 737924ER

Difficulty date: March 26, 2026
Submitted: April 8, 2026
Operation: Air carrier
Aircraft: N57439
Make and model: Boeing 737924ER
Aircraft serial: 33534
Aircraft time: 52,623 hours, 18,770 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Part number: 182A40022
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

RIGHT HORIZONTAL STAB. LOWER SKIN HAS CONFIRMED CRACK INDICATION, 1.400"L, INBD OF INBD ROW OF FASTENERS AT HSS 184.70, 8" FWD OF AFT SPAR. RIB REPAIRED IAW SRM 55-10-01-2R-11 REPAIR 11. THIS REPAIRIS A CAT B REPAIR REQUIRING SUPPLEMENTAL INSPECTION PER B737-900 SRM 55-10-01-2R-11 PARA 5, TABLE 204. INSPECTION THREHOLS 56,000 TFC.