AD 98-09-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | 1900D | Airworthiness Directives; Raytheon Aircraft Company Model 1900D Airplanes |
Unsafe Condition
Moisture and corrosion on the radio switching panel relay printed circuit boards (PCB) and nose avionics wire harnesses could cause loss of pilot/co-pilot intercom, VHF communication, and public address systems during critical flight phases.
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Required Actions
Inspect and repair the radio switching panel relay PCBs and nose avionics wire harnesses per Raytheon SB No. 2643. Clean or replace components with corrosion/moisture, secure wire harnesses with cable ties, and replace A017 PCB (P/N 101-342536-1) with a new PCB (P/N 101-342536-5 or equivalent).
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Compliance Time
within the next 1,000 hours time-in-service (TIS) or within the next 180 days after the effective date of this AD, whichever occurs first
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Affected Aircraft
Raytheon Aircraft Company Model 1900D airplanes, serial numbers UE-1 through UE-160
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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