AD 86-25-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Rockwell International | Navigation Receivers | Airworthiness Directives; COLLINS AVIONICS DIVISION/ROCKWELL INTERNATIONAL: Applies to Model 51RV-4 VOR-ILS Navigation Receivers, Part Number 622-3255-XXX, Serial Number 5960 thru and including 7277 |
Unsafe Condition
Deviation output signal oscillation that may cause undetected erroneous VOR and ILS localizer deviation display, flight director commands, and/or autopilot tracking.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the unit in accordance with Collins Alert Service Bulletin A22. For installed receivers, install specific placards within three calendar days, verify localizer and VOR centering within three calendar days, and modify or replace the receiver within 30 calendar days. Equivalent means of compliance may be approved.
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Compliance Time
Within three calendar days and 30 calendar days after the effective date of this AD (January 6, 1987).
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Affected Aircraft
COLLINS AVIONICS DIVISION/ROCKWELL INTERNATIONAL Model 51RV-4 VOR-ILS Navigation Receivers, Part Number 622-3255-XXX, Serial Number 5960 thru and including 7277.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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