It became apparent that when the landing ramp was fitted that the platter was not passing freely through it. The fault in the HDD was replicated.Ī thorough inspection of the HDD took place. There was an initial suspicion that the plastic landing ramp itself had become misaligned or damaged. On removal of the landing ramp, it was possible to rotate the platter freely. Assuming a motor bearing failure the head-assembly and the landing ramp was removed in the preparation of performing a platter swap to a donor hard disk assembly. It was not possible to rotate the platter. When the HDD was opened the head assembly was parked in the landing ramp. However, the fault in this HDD was very unusual. These are typical mechanical failures of a HDD. A less common failure is when the bearing itself fails, which prevents the motor from turning at all. The most common reason for this is when the read-write heads get stuck to the platter surface, which prevents the motor from spinning. On arrival, the HDD emitted a buzzing noise. As a consequence, the HDD sustained a significant physical shock. The owner of the laptop had fallen down a flight of stairs whilst carrying the laptop. Case study: Toshiba MQ01ABF050 – skewed spindleĪn unusual failure in a Toshiba MQ01ABF050 500GB 2.5″ laptop hard disk drive (HDD).
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