AD 2000-22-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Raytheon | DH | Airworthiness Directives; Raytheon Model DH.125, Model HS.125, Model BH.125, Model BAe.125 Series 800A (Including Major Variants C-29A and U1-25), Model Hawker 800, Model Hawker 800XP, and Model Hawker 1000 Series Airplanes |
Unsafe Condition
Plugged or taped pitot/static and stall vent drain valves, leading to corrosion of certain drain valves, which can cause erroneous altimeter and airspeed indications.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Drain and perform leak tests on pitot/static and stall vent drain valves within 300 hours after the effective date. If any valve fails the leak test, apply a temporary seal, replace components, or modify the valves as specified. If any valve is inoperative or corroded, disassemble, clean, inspect, and replace components as necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 300 hours after the effective date of the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Raytheon Model DH.125, Model HS.125, Model BH.125, Model BAe.125 Series 800A (including variants C-29A and U1-25), Model Hawker 800, Model Hawker 800XP, and Model Hawker 1000 series airplanes, as listed in Raytheon Aircraft Service Bulletin SB 34-3207, excluding those with modified drain vent valves per Raytheon Aircraft Repair Design Office instructions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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