Hawker Summer 2000

• Nose Gear Taxi Lights & Pulse Lighting Systems
• Corrosion On Aging Aircraft
• TKS Anti-Icing Surface
• Main Gear Actuators
• Avoid Unnecessary Downtime

Nose Gear Taxi Lights & Pulse Lighting Systems

In order to meet customer demands, Duncan’s modification department was asked to fabricate and install nose gear taxi lights on a Hawker 700A. During the same project, we also added TCAS I (CAS- 66A) and a pulse lighting system. Precise Flight offers a version of their pulse lights that work in conjunction with the TCAS (not a bad way of letting other aircraft know your location, especially in a closequarters situation).

Another safety item that was added to Duncan’s list of certifications, was our amended STC to include the latest software revision 212-212.

For more info, contact Roy Olsen in BTL at 800.525.2376 or contact Dick Hyde in LNK at 800.228.4277.

Corrosion On Aging Aircraft

As aircraft age, we find areas of corrosion that are not covered by NDT inspections. These areas are referred to in the maintenance schedule as area inspections. Close attention should be given to any corrosion found. Unchecked corrosion can lead to costly future repairs. Areas of likely corrosion are around stringer 19 from frames 7 to 13, under the toilet area and in the vertical stab. Another area is in the wing to fuselage link fittings and links.

TKS Anti-Icing Surface

Hawker series 800XP and 1000 have an additional TKS anti-icing surface not on the earlier series Hawkers. This is the wing leading edge stall trigger. This trigger is laser drilled to pass TKS fluid across its surface. These stall triggers should NOT be polished or painted. Doing so will render the trigger inoperative. The outboard wing leading edges also have laser drilled TKS panels that are NOT to be polished or painted for the same reasons.

When doing bright work on the wing leading edges, avoid applying any type of adhesive tapes to the TKS panel weeping areas. Doing so can leave sticky film in the panel’s pores which will collect dirt particles eventually rendering the panel inoperative.

For more info, contact Roy Olsen in BTL at 800.525.2376 or contact Dick Hyde in LNK at 800.228.4277.

Main Gear Actuators

Main gear actuators having 4,000 or more cycles must comply with SB 32-3391 within 10 flights. For actuators with more than seven years or 3,000-4,000 cycles, compliance time will be six months. The bulletin also affects all actuators with more than 1,000 cycles; however, the compliance time extends to 24 months.

Avoid Unnecessary Downtime

As Hawkers age, change ownership and maintenance schedules revise, it becomes increasingly important to assure all necessary inspections are accomplished when the aircraft is down for inspection. Many times inspections are out of phase with others. For example: If an aircraft is due for a 48 month inspection, other questions must be asked, how many other hourly inspections are due? What about structural inspections and out of phase tasks?

The Hawker 700 is nearing the 16-20 year point of its life and the 800 series is nearing the 12-16 year point of its life. To bring tasks back in phase with each other in these aircraft, it may be necessary to “bite the bullet” and accomplish certain tasks early. By doing this you will avoid unnecessary downtime in the future.

Be certain that your service provider has the necessary experience to integrate all inspections at the moment of downtime. Another thing to check for is whether your service provider has experience with 20-year inspections.

For more info, contact Dan Fuoco in LNK at 800.228.4277 or contact Pete Kilmartin in BTL at 800.525.2376.

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