Airworthiness Directive · Amendment 39-11693 · Raytheon Model BAe 125-800A and BAe 125-800B, Model Hawker 800, and Model Hawker 800XP Series Airplanes
Raytheon Model BAe 125-800A and BAe 125-800B, Model Hawker 800, and Model Hawker 800XP Series Airplanes
Model BAe 125-800A and BAe 125-800B, Model Hawker 800, and Model Hawker 800XP series airplanes; as listed in Raytheon Service Bulletin SB.54-1-3815B, Revision 1, dated May 1998; certificated in any category.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (c) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Raytheon Model BAe 125-800A and BAe 125- 800B, Model Hawker 800, and Model Hawker 800XP series airplanes, that currently requires the filling of two tooling holes on the firewalls of the left and right engine pylons with firewall sealant. This amendment requires the sealing of all unused (open) tooling holes on the firewalls of the left and right engine pylons, and expands the applicability to include additional airplanes. This amendment is prompted by reports of additional unused (open) tooling holes, found at locations other than those currently addressed. The actions specified by this AD are intended to prevent an engine fire from moving to the fuselage and to the lines that carry flammable fluid that are located inboard of the firewall.
To prevent an engine fire from moving to the fuselage and to the lines that carry flammable fluid that are located inboard of the firewall, accomplish the following:
(a) For airplanes identified in AD 96-24-16, amendment 39-9840: Within 6 months after January 27, 1997 (the effective date of AD 96-24-16), fill the two, unused tooling holes in the firewalls of the left and right engine pylons, in accordance with Raytheon Service Bulletin SB.54-1-3815B, dated March 26, 1996, or Raytheon Service Bulletin SB.54-1-3815B, Revision 1, dated May 1998. After the effective date of this AD, only Revision 1 of this service bulletin shall be used.
(b) For all airplanes: Within 6 months after the effective date of this AD, fill all unused tooling holes in the left and right engine pylon firewalls with firewall sealant, in accordance with Raytheon Service Bulletin SB.54-1-3815B, Revision 1, dated May 1998.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
