SDR CALA2024090500570

Service difficulty report · Skin · Boeing 737924ER

Difficulty date: September 4, 2024
Submitted: September 5, 2024
Operation: Air carrier
Aircraft: N75425
Make and model: Boeing 737924ER
Aircraft serial: 33460
Aircraft time: 50,840 hours, 17,994 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Condition: Cracked
Location: Zone 300
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LH HORIZONTAL STABILIZER, LOWER SKIN, ONE CRACK INDICATION AT STA 101.9, 14 INCHES INFRONT REAR SPAR. REPAIRED DAMAGE CRACK AT L/H HORIZONTAL STAB LOWER SKIN AT STA 1 01.9 IAW SRM 51-40-02-0G-0, 55-10-01-2R-11, AMM 51-31 -00-930-804,51-21-73-370-801 THIS REPAIR IS A CATEGORY B REPAIR REQUIRE REPEAT INSPECTION THRESHOLD 56,000 TOTAL FLIGHT CYCLES NTERVALS 9,000 FLIGHT CYCLES IAW SRM 55-10-01-2R-11 S TEP (5) INSPECTION REQUIREMENTS TABLE 204.