SDR SWAA2020060374496

Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date: May 2, 2020
Submitted: June 3, 2020
Operation: Air carrier
Aircraft: N464WN
Make and model: Boeing 7377H4
Aircraft serial: 32468
Aircraft time: 55,704 hours, 33,002 cycles
System (JASC): 5514 · Horizontal Stabilizer Miscellaneous Structure
Part: Stiffener
Condition: Cracked
Location: Lt Horiz Stab
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 STABILIZER CRACKED AT NR 4 RIB, STAB STA 120.30 AND NR 3 STIFFENER LWR END. DISPLACED FWD WEB FOR ACCESS AT LT HORIZONTAL STABILIZER. PERFORMED HFEC INSP AT STIFFENERS NR 3 (NR 4 RIB) FOUND CRACK. REPAIRED NR 4 RIB STIFFENER NR 3 IAW SRM 55-10-09-2R-4 REPAIR 4 & REINSTALLED FWD WEB IAW SRM 51-40-02-0G-0.

More about the Boeing 737-7H4