SDR SWAA2020052643448

Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date: April 17, 2020
Submitted: May 26, 2020
Operation: Air carrier
Aircraft: N922WN
Make and model: Boeing 7377H4
Aircraft serial: 32461
Aircraft time: 41,140 hours, 24,679 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 RIB STAB STA 129.50, 4TH STIFFENER IS CRACKED AT LOWER END. CUT OUT DAMAGE AREA LT HORIZONTAL STABILIZER RIB STA 129.50 4TH STIFFENER LOWER END IAW SRM 55-10-09-2R-4 REPAIR 4. FABRICATED REPAIR PARTS AND INSTALLED IAW SRM 55-10-09-2R-4 REPAIR 4 PARA A-R.

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