SDR CALA2025092609314

Service difficulty report · Skin · Boeing 737824

Difficulty date: September 20, 2025
Submitted: September 26, 2025
Operation: Air carrier
Aircraft: N37274
Make and model: Boeing 737824
Aircraft serial: 31592
Aircraft time: 73,181 hours, 26,063 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Part number: 182A4001
Condition: Cracked
Location: Zone 300
Stage of operation: IN
How discovered: E
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 SIGNAL NOTED AT STAB RH SIDE HSS 129.50, L=0.500 INCH LOCATED TO 9 INCH AFT FROM FRONT SPAR. PERFORMED PERMANENT REPAIR AT RH SIDE HORIZONTAL STABILIZER HSS 129.50, LOCATED 9 INCHES AFT OF FRONT SPAR, THIS REPAIR IS CATEGORY "B", REQUIRES REPETITIVE INSPECTIONS IAW B747-800 SRM 55-10-01-2R-11 STEP 2.A.