Category Archives: AircraftTroubleshooting

Terminate a shielded wire, with minimum pregnant spot.

Largest hole to remove outer

 

 

Bare Shield

 

 

Bunch the shield

 

Cut the side off the bunch

 

Clean up a small portion of the shield that remains

 

Smooth the small portion

 

Prepare shield ground

 

Untwist it until its flared out.

 

 

carefully wind 1 TURN ONLY.

Clip the rest with flush cut

 

Heat the whole thing until solder FLOWS fully into both braids

 

Smallest applicable heat shrink.

 

 

 

 

PCB project software work flow

There are 4 immediate goals, plus the wishlist below.

1.  Start projects from  schematics, then generate, layout,  and route PCB.

2. Show 5 pcbs, plus complex wire harnesses on 1 print, or set of prints, with appropriate interconnections that are responsive to changes in any schematic.

3. Generate wire list for harness that connects  each plug, responsive to changes in schematic. These are wire “tables” that should follow the EasyEDA data.

4. Use improved part models.  the following parts have no 3d render:
3 pole switch, 50 pin DSUB, rotary switch, test points

Current workflow disaster:

1. Open source cad to move from concept to complete project overview.

Easy EDA for individual pcbs using “artistic” layout.  No schematic in EasyEDA.

Return to cad and manually generate interconnect harnesses.

SEPERATE visio file for water jet cut aluminum face.

SEPERATE dxf file for laser engraver.

Separate Abobe Illustrator file for face layout.

Separate Spreadsheet to build wire list to fabricate plugs and harnesses.

Separate Spreadsheets for BOM.

Separate shopping carts on DIGIKEY for separate circuit boards builds.

 

 

Other Goals:

DXF files for water jet based on above.

DXF files for placard engraver, based on above.

 

I understand that this list is not achievable in 8 hours of training, but I need to develop good work habits that push me is this direction.

The current project we are training for:

Ground Support Test Equipment for a corporate jet.

Box plugs in between the airplane and the flap controller.

 

92CA – PTU’s

92CB, – PTU’s

92CC – Slat Commutation/Temp

92CD – Flap Motor

92CE – Slat Motor

Layout, hand drawn.

example schematic

Below is the draft of the face layout for the breakout box.

 

 

 

 

 

 

 

Why would altimeters split on a jet

Cabin Pressurization  leak bubbling outside the airplane.

Static leak allows cabin pressure in.

Ports not flat to airflow.

Shape and condition of sealant around ports

 

Bug in line.

SSDC curve different right to left.

Static lines not crossed.

Dent fwd of Static ports.

One ADC gets crazy when it gets cold.

Paint stripe edges on a fast airplane.

Turn buble mounted slightly crooked, causes pilots to trim the aircraft out of level. Affects static ports.

 

 

FLAP / SLAT ASYMMETRY – G100 FLAP/SLAT

EXPLANATION OF THE ASYMMETRY SECTIONS

Some helpful tips: Use the ASYM POT to simulate RH flap jack-screw.  Also, use 1 voltmeter to compare left flap RAW to right flap RAW.

 

These videos are part of  series of instructions for using the Aviation Technical Solutions, LP.

The Summary page is HERE: TECH REFERENCE NOTES

Download the printable  manual HERE: FS400 DESCRIPTION_ OPERATION

 

Other tech reference pages in this series:

POWER CONTROL

COCKPIT ANNUNCIATION AND AOA

FLAP / SLAT ASYMMETRY

FLAP COMMAND

POWER DRIVE UNIT

AIRSPEED AND ROUND TEST