SDR CALA2023052201603

Service difficulty report · Stiffener · Boeing 737724

Difficulty date: May 21, 2023
Submitted: May 22, 2023
Operation: Air carrier
Aircraft: N16701
Make and model: Boeing 737724
Aircraft serial: 28762
Aircraft time: 77,924 hours, 27,822 cycles
System (JASC): 5510 · Horizontal Stabilizer Structure
Part: Stiffener
Part number: 182A53055
Condition: Cracked
Location: Lt Stab Rib2
Stage of operation: IN
How discovered: O
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

LT STAB RIB NO.2 STIFFENER NO.4 IS CRACKED REF AAR N/R 9672247 REMVOED CRACKED STIFFNER NO.4 AND WEB IN RIB NO.2 PER REF 51-40-05-0G-0 INSTALLED REPAIR PARTS AS PER SRM 55-10-09-2R-4 B737 SRM 55-10-04-2A-4 FIG 202 PERFOREMD NDT INSP AT CUTOUT AND FIG 202 SRM 51-40-02-0G-0 AND AMM 51-31-00-390-804 EXISTING HOLE NO CRACKS DETECTED FAB REPAIR PARTS LOCATED AND DRILLED HOLES REF B737 SRM 55-10-09-2A-4 FIG 202 AND SRM