Pycharm

pycharm-community in the command for the gui

 

 

 

 

Winxp only

 

 

 

Bring dump card and clean  data card. Smaller than 256mb. Formated fat 16. .( FAT)

 

Pull cb reer d3

 

Door will not open till power off

 

Eject card

Insert dump. Leave door open. Push cb Be paitient.

Wait for complete light.

Pull cb

Insert empty data card.

Expect CHECK MDAU nuisance message.

Win xp explorer to copy to compuTer folder

 

USE MDAU_READOUT 7.0

 

 

 

FORMAT one.

 

Make one dump.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Current as of Nov 1 2025:

Bus A has sawtooth only when DCU1 breaker pushed.

Bus B has sawtooth only when DCU 2 breaker pushed.

Here is failure mode, showing shorter, sawtooth pulses:

Here is non-failed mode, square pulses:

Very infrequently, the sawtooth will be very pronounced.

We have been warned the the pulses must be 3.5v Peak to Peak.  Our good pulses show 3.1v, and the runt pulses from the DCU show 2.1v. Some inaccuracy expected because we are using a 6 foot scope probe, off of a bus tap mid string.  If we sampled at the terminator, both  would be slightly higher?

Here is the original F900 ASCB topology, with Universal pin numbers annotated.

 

 

??=====================================

Current as of  oct 31, 2025

The frequent un-commanded disengage comes with LAFCS FAIL, and B16: Servo interface monitor fail on the bit codes

Occasional IRU DATA INVALID.

Occasional Disengage ANN data fault

Not sure about this one:

Initial problem.

AP transfers, AP uncommanded disconnect random, only in flight. MTRIM and YD disconnect most of the time.

 

+++++++++++++++++++++++++++++++++++++++++++++++++

Older printable data:

34-09-01-A.S.C.B WIRING 3

34-09-01-A.S.C.B WIRING page 1 34-09-01-A.S.C.B WIRING page 2

 

adsb fms for sn 009

ascb2

ascb 1

ASCB cropped 3 pages

ASCB cropped 3 pages Printable

ASCB Measurements

ASCB RING OUT 1021

ASCB RING OUT TEMPLATE

 

 

 

 

 

 

 

 

 

Free pickup drop off 76078

 

Mark Patnode

2146976225

 

A and P , was IA.

 

 

 

 

We elected to section and discarded the old 90 degree backshells.  That allowed enough slack to define, repin, one wire

 

 

 

 

 

 

 

 

 

LEFT FWD OVERWING          P/N  TAE-128              S/N T02148

LEFT MID  OVERWING           P/N  TAE-128              S/N T02111

LEFT AFT  OVERWING            P/N  TAE-128              S/N T02113

RIGHT FWD  OVERWING      P/N  TAE-128              S/N T02109

RIGHT MID   OVERWING       P/N  TAE-128              S/N T02110

RIGHT AFT OVERWING          P/N  TAE-128              S/N T02112

 

LEFT SCAN LIGHT                       P/N TAE-0428-7        S/N T01153

RIGHT SCAN LIGHT                   P/N TAE-0428- 6       LOT LT21-243451

 

 

MS25036 then dash numbers for sizes

 

 

here is a chart

 

https://skygeek.com/aircraft-engine-parts/electrical/ring-terminals/?productListFilters=