Service difficulty report · Stiffener · Boeing 737924ER

Difficulty date
March 17, 2026
Submitted
March 18, 2026
Operation
Air carrier
Aircraft
N53441
Make and model
Boeing 737924ER
Aircraft serial
30131
Aircraft time
52,435 hours, 18,701 cycles
Part
Stiffener
Part number
182A53013
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

LEFT HORIZONTAL STAB, AT STAB STA 92.70 INBD SIDE OF RIB HAS ONE CRACK IN NR 3 VERTICAL STIFFINER LOWER TRANSITION RADIUS. CUT AND REMOVED THE DAMAGE FROM THE VERTICAL STIFFNER IAW SRM 55-10-09-2R-4. ACCOMPLISHED SURFACE HFEC INSP IAW NTM 51-00-00, PROCEDURE 23, FABRICATED REPAIR PARTS -1 T-SECTION, -2 ANGLE AND -3 SHIM IAW SRM 55-10-09-2R-4. ALODINED AND PRIMED REPAIR PARTS IAW SRM 51-20-01. INSTALLED REPAIR PARTS IAW SRM 55-10-09-2R-4.