AD 84-03-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sundstrand | Digital Flight Data Recorder | Airworthiness Directives; SUNDSTRAND DATA CONTROL, INC. Model 573A, Digital Flight Data Recorder (DFDR) Part Numbers 981-6009-001/010/011/012/013/014 |
Unsafe Condition
Loss of recorded data due to lack of Mod 15 modification on DFDRs with Mod 8 but not Mod 15.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the DFDR to determine modification status. For units with Mod 8 but not Mod 15, accomplish Sundstrand Service Bulletin No. 23 (Mod 15) or equivalent FAA-approved revisions.
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Compliance Time
within the next 2,000 hours time in service or 1 year after the effective date of this AD, whichever occurs later
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Affected Aircraft
SUNDSTRAND DATA CONTROL, INC. Model 573A DFDR, Part Numbers 981-6009-001/010/011/012/013/014
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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