SDR ASAA2026040165496

Service difficulty report · Rib · Boeing 737890

Difficulty date: April 1, 2026
Submitted: April 16, 2026
Operation: Air carrier
Aircraft: N586AS
Make and model: Boeing 737890
Aircraft serial: 35189
Aircraft time: 64,942 hours, 19,968 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
Part: Rib
Part number: 182A53014
Condition: Cracked
Location: Zone 300
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

RH HORIZONTAL STAB AT RIB STA 92.70 1EA CRACK LOCATED ON O/B SIDE OF RIB AT MOST FORWARD FASTENER HOLE OF RIB AT THE FWD SPAR. GROUNDED - YES. REPAIRED RIB IAW B737-800 SRM 51-40-02, SRM 51-10-04, NDTM PT. 6 51-00-00 PROC. 23 & 16, SRM 55-10-09-2R-5, BAC 5602 REV. AH.