Learjet Summer 2003

Is This Normal?
M/N EM608 P/N 6608267-2 Cockpit Blower
Learjet RVSM Preparation (part 1 of 3)
2003 Intelli-Conferences

Download PDF Version

Is This Normal?

— Dave Schiver

How many times has someone from the flight crew given you a squawk and you thought the aircraft was operating properly? Have you ever asked yourself "Why would they turn this system off or on at this time?" Did you read the Maintenance Manual over and over to no avail? Remember that the AFM (Airplane Flight Manual) is "FAA Approved Data" and can assist you in evaluating the discrepancy. In the "Limitations" section, it will tell you when certain systems are to be turned off or on depending on the flight environment. The "Normal Procedures" section is helpful in which order items are to be accomplished or turned off or on and usually will tell you what indications to look for. The "Abnormal Procedures" sections will tell you the procedures for when certain systems fail or are degraded and what indications to look for in those situations.

Taking the time to become familiar with the AFM will enable you to communicate more effectively with your flight crews and enhanced communications always improves the work environment.

M/N EM608 P/N 6608267-2 Cockpit Blower

— Chris Gress

Cockpit blowers are placed in a difficult location making removal difficult and man-hours high when an overhaul is needed every few hundred hours. Now Duncan Aviation can help you double or even triple your Learjet cockpit blower life.

Duncan Aviation's Accessory Department, an Electromech Technologies Service Center, will soon be authorized to provide a new "brushless" cockpit blower. Your unit can be modified or if you don't have the down-time or a spare, these will be available as exchange units. We anticipate that many operators will want to convert their units right away, so we are currently taking "no obligation " orders. Just let us know you would like to be placed on the list and you will be among the first to receive this new brushless blower with no deposit needed. The production run will be based on the number of request we receive over the next month or two. If you think this would be a good option for you, call Chris Gress at 800.228.4277 ext. 1664 or 402.479.4151.

Learjet RVSM Preparation (part 1 of 3)

— Steve Elofson

If youre not RVSM compliant and you operate a Lear 35, 35A, 36 or 36A with a Mk-IV wing, take note. While most RVSM discussion centers on the static ports, there are other areas of the Lear 35 you may need to modify to comply with the STC.

The first of these is your wing. If you have a Mk-IV wing, RVSM certification will require you to perform the Mk-IV to Century III wing modification that can be performed only by Bombardier. If you're not sure which wing you have, here are some hints:

The Mk-IV wing...

was installed on serial numbers below #117.
does not have the stall diverter rib across the wing.
has vortex generators (tiny vertical tabs) on the outboard portion of the wing.

The Century III wing...

has a "Stall Fence" across the center of the wing - parallel with the fuselage.
has "Boundary Layer Enhancers" (BLEs) on the outboard section of the wing (little metal bars).

2003 Intelli-Conferences

— Steve Gade

Duncan Aviation is offering one-day Intelli-Conference symposiums this fall in the following cities: Battle Creek, Michigan (Sept. 9), Van Nuys, California (Oct. 29), Alanta, Georgia (Nov. 11) & Dallas, Texas (Nov. 13).

For details or to register, call Gina Cacek at 800.228.4277 or 402.475.2611, ext. 1288.

( Return to top )