SDR SWAA2020060878953

Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date: May 16, 2020
Submitted: June 8, 2020
Operation: Air carrier
Aircraft: N483WN
Make and model: Boeing 7377H4
Aircraft serial: 32472
Aircraft time: 54,791 hours, 32,417 cycles
System (JASC): 5514 · Horizontal Stabilizer Miscellaneous Structure
Part: Stiffener
Part number: 002A0001
Condition: Cracked
Location: Rt 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

RIGHT HAND HORIZONTAL STABILIZER INSPAR RIB AT STABILIZER STATION 120.30 4TH VERTICAL STIFFENER IS CRACKED. REPAIRED DAMAGE TO RT HORIZ STAB INSPAR RIB STAB STA 120.30; 4TH VERT STIFFENER IAW SRM 51-40-02-0G-0, AMM 51-31-00-390-805, SRM 55-10-09-2R5; BAC DRAWINGS 002A0001; 182A3001; 182A1500; AND 182A2401.

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