SDR SWAA2023072570884

Service difficulty report · Rib · Boeing 7377H4

Difficulty date: June 23, 2023
Submitted: July 25, 2023
Operation: Air carrier
Aircraft: N294WN
Make and model: Boeing 7377H4
Aircraft serial: 32540
Aircraft time: 51,742 hours, 31,145 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
Part: Rib
Part number: UNKNOWN
Condition: Cracked
Location: Zn 300 Stabilize
Stage of operation: IN
How discovered: 9
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

CRACK ON LEADING EDGE RIB LE STAB. 105.26 LT HORIZONTAL STABILIZER 2023-409506<[01] REPLACED RIB LOCATED ON LEADING EDGE STA 105.26 LT HORIZONTAL STABILIZER IAW B737-700 SRM 51-40-02; DWG 186A1001 SHEET 19 REV -. AND DWG 186A1304 SHEET 1 REV -.<BR>SEE INDIVIDUAL SIGNS-OFF BELOW.;[02] REPLACED RIB LOCATED ON LEADING EDGE STA 105.26 LT HORIZONTAL STABILIZER IAW B737-700 SRM 51-40-02; DWG 186A1001 SHEET 19 REV -. AND DWG 186A1304 SHEET 1 REV -. <BR>SEE INDIVIDUAL SIGNS-OFF BELOW. RII

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