B737-900
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Maintenance
General None Reported / Taken
Procedure; Aircraft
On walk around First Officer Found horizontal stabilizer hinge cover installed backwards. This is the second time in two days; on two different aircraft. The stabilizer hinge had torn through the cover. The first day flight (flight) ZZZ-ZZZ1 plane went to the hangar. Two days later flight (flight) ZZZ2-ZZZ3 four-hour delay for new cover to come in. Two times in three day!! First time by maintenance second time by the First Officer. A little disconcerting! Check every aircraft we have.
Captain reported multiple aircraft with a stabilizer hinge cover installed backwards; causing flight delays and cancelations.