Service difficulty report · Rib · Boeing 737890

Difficulty date
December 9, 2025
Submitted
December 16, 2025
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
70,079 hours, 20,914 cycles
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

INSIDE RT HORIZONTAL STAB, RIB AT HSS 92.7 HAS 2 CRACKS (MARKED IN RED). GROUNDED - YES. REPAIRED THE RT HORIZ STAB, RIB AT HSS 92.7 (2EA) USING PN:BAC1505-100962 7075-T73511 PO:1137296.2 AND PN:BAC1490-2793 7075-T62 PO:1137296.1 IAW SRM 55-10-09-2R-4. REMOVED AND REINSTALLED WEB TO FOM IAW B737-800 SRM 51-40-02 (CAT A REPAIR).