AD 78-02-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | BH.125 Series 600A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LIMITED Model BH/HS 125-600A Airplanes |
| aircraft | Textron Aviation Inc. | HS.125 Series 600A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LIMITED Model BH/HS 125-600A Airplanes |
Unsafe Condition
Failure of the heating elements of both pitot heads could cause possible loss of airspeed reference to both the pilot and co-pilot.
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Required Actions
Remove the Avimomini pitot heads (L/H and R/H) and replace with Rosemount Model 853 JA pitot heads in accordance with Hawker Siddeley Aviation, Limited Service Bulletin 34-129(2436), Revision 1, dated June 21, 1977, or an FAA-approved equivalent.
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Compliance Time
within 10 hours time in service after the effective date of this AD
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Affected Aircraft
HAWKER SIDDELEY AVIATION, LIMITED Model BH/HS 125-600A 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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