Incident · 1996-05-29
What the record says
- Event date
- 1996-05-29
- Event type
- Incident
- Highest injury level
- No injuries
- Aircraft
- Dornier 328 (N336PH)
- Operating rule
- Part 121
- Operator
- Horizon Air Operator named in NTSB report
- Operated by (per NTSB report)
- HORIZON AIR
Probable cause
paint overspray on the elevator trim actuator push rods, which damaged the actuator quad rings during normal operation and allowed water to enter the actuators; and the resultant freezing of the actuators. Factors relating to the incident included the aircraft manufacturer's failure to adequately protect the actuators from overspray during aircraft painting, insufficiently defined maintenance procedures by the aircraft manufacturer, and low temperatures at cruising altitude.
Source: NTSB case SEA96IA104Flight crew
Flight-crew details for this event aren't in the NTSB database extract we hold (its coverage starts with 2008 events) — a gap in our data, not an absence of crew.
Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.