AD 74-26-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sabreliner Corporation | NA-265-40 | Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA265- 40, NA265-60, NA265-70 Series Airplanes |
| aircraft | Sabreliner Corporation | NA-265-60 | Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA265- 40, NA265-60, NA265-70 Series Airplanes |
| aircraft | Sabreliner Corporation | NA-265-70 | Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA265- 40, NA265-60, NA265-70 Series Airplanes |
Unsafe Condition
Inflight engine shutdown due to loss of oil quantity because of an unknown incipient failure condition in the engine oil low pressure switch (Hydra-electric, P/N 12252).
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Required Actions
Inspect each engine installation to determine if Hydra-electric P/N 12252 is installed. If found, remove it and replace with approved parts or install specified components. Placard installation and functional checks required. Return removed switches to Rockwell-International.
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Compliance Time
Within ten flight hours after receipt of this AD
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Affected Aircraft
ROCKWELL INTERNATIONAL Models NA265-40, NA265-60, NA265-70 (CT-39E, CT-39G) series airplanes certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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