A door built around 1987 almost always means a steel sectional door on a torsion spring system mounted over the opening - not the side-mounted torsion or extension-spring setups common on the one-piece and early sectional doors from the 1960s and 70s tracts elsewhere in the service area. That changes what actually breaks.
On these newer Moorpark doors, we see less of the warped-panel and rusted-track failure that shows up on 60-year-old wood doors, and more opener-side trouble: aging circuit boards, photo-eye sensors knocked out of alignment, worn drive gears on belt or chain units that have been running two or three decades. Torsion springs on a door this age are also due or overdue - a standard torsion spring is rated for a cycle count, not a calendar date, and a 35-plus-year-old spring on a daily-use door is well past typical service life regardless of how it looks.
The mild temperate climate here doesn't put the stress on doors that freeze-thaw regions see, so track and hardware corrosion isn't the driver it is elsewhere. Wear here is mechanical and electronic, tied to age and cycle count rather than weather.