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WARNING: Airworthiness Directive applicability may depend on your specific aircraft configuration,
including installed engines, propellers, and appliances. Results shown here may be incomplete if your full
configuration is not specified. Always consult official FAA sources and your A&P mechanic or IA for
definitive compliance determinations.
Parser coverage is imperfect. "Possible" results require manual verification of the applicability section.
Airworthiness Directives; BOEING - VERTOL Type 42A, 42B, 44A, 44B and Military H-21 Series Helicopters
Effective: Mar 21, 1968
Match reasoning:
Make + model match "Boeing Defense & Space Group | Heli-Crane Corporation | Wright Kevin | Marrs Joe G. | Risley Lester W." / "44A".
Clause text
Per source metadata: Boeing Defense & Space Group | Heli-Crane Corporation | Wright Kevin | Marrs Joe G. | Risley Lester W. / 42A; Boeing Defense & Space Group | Heli-Crane Corporation | Wright Kevin | Marrs Joe G. | Risley Lester W. / 42B; Boeing Defense & Space Group | Heli-Crane Corporation | Wright Kevin | Marrs Joe G. | Risley Lester W. / 44A; Boeing Defense & Space Group | Heli-Crane Corpora…
Make + model match "Boeing Defense & Space Group | Wright Kevin | Marrs Joe G. | Risley Lester W." / "44A".
Clause text
Per source metadata: Boeing Defense & Space Group | Wright Kevin | Marrs Joe G. | Risley Lester W. / 42A; Boeing Defense & Space Group | Wright Kevin | Marrs Joe G. | Risley Lester W. / 42B; Boeing Defense & Space Group | Wright Kevin | Marrs Joe G. | Risley Lester W. / 44A; Boeing Defense & Space Group | Wright Kevin | Marrs Joe G. | Risley Lester W. / 44B; Boeing Defense & Space Group | Wright K…
Airworthiness Directives; VERTOL Models 42 and 44 Series Helicopters
Effective: Nov 8, 1960
Match reasoning:
Make + model match "Boeing Defense & Space Group" / "44A".
Clause text
Per source metadata: Boeing Defense & Space Group / 42A; Boeing Defense & Space Group / 42B; Boeing Defense & Space Group / 44A; Boeing Defense & Space Group / 44B
Airworthiness Directives; VERTOL Models 42 Series and 44 Series Helicopters
Match reasoning:
Make + model match "Boeing Defense & Space Group" / "44A".
Clause text
Per source metadata: Boeing Defense & Space Group / 42A; Boeing Defense & Space Group / 42B; Boeing Defense & Space Group / 44A; Boeing Defense & Space Group / 44B
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