AD 98-11-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | Hawker 800 (U-125A) | Airworthiness Directives; Raytheon Model Hawker 800XP Series Airplanes, and Hawker 800 (U-125A Military Derivative) Airplanes |
| aircraft | Textron Aviation Inc. | Hawker 800XP | Airworthiness Directives; Raytheon Model Hawker 800XP Series Airplanes, and Hawker 800 (U-125A Military Derivative) Airplanes |
Unsafe Condition
Excessive sealant applied during manufacture of the firewall mounting flanges and mounting points of the fire extinguisher assemblies entered and obstructed the discharge tubes, which could result in improper distribution of the fire extinguishing agent within the nacelle in the event of a fire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove sealant from firewall mounting flanges and mounting points of the fire extinguisher assemblies; remove sealant obstructing discharge tubes; clean and flush mounting flanges, mounting points, and discharge tubes with solvent; and install new gaskets on firewall mounting flanges and mounting points.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 days after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Raytheon Model Hawker 800XP series airplanes and Hawker 800 (U-125A military derivative) airplanes, as listed in Raytheon Service Bulletin SB.26-3197, dated April 1998; certificated in any category.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.