Textron Aviation 400T User manual

Aviation Fabricators Inc.
805 North Fourth Street
Clinton, MO. 64735
INSTRUCTIONS FOR CONTINUED AIRWORTHINESS
For
Cabinet Assembly, Toilet and Manual Storage
Document No.: AF-645
Revision “A”
Revision Date: 08/10/20
Applicable to:
Textron Aviation 400T Aircraft
The information in the Instruction for Continued Airworthiness is FAA accepted material and complies with
14 CFR 25.1529, Instructions for Continued Airworthiness. It supersedes or adds to that provided in the
Maintenance Manual for the Textron Aviation 400T aircraft, only where covered in the items contained
herein. For limitations and procedures not contained in the Supplement, consult the Textron 400T
Maintenance Manual, or other approved airplane data.

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision A)
Clinton, MO. 64735 Date: August 10, 2020
Page 2 of 13
REVISION PAGE
Document Title: Instructions for Continued Airworthiness
Prepared By: Nolan Groff
Updates to the ICA will be made by Aviation Fabricators Inc. Updates will be listed in the log of
revisions below.
Per the requirement of Appendix H of 14 CFR Part 25 paragraph H23.1 (c), the changes
made to the ICA by the applicant will be distributed via mail by means of paper copy.
Log of Revisions
REV.
NO.
EFFECTED
PAGE(S)
DESCRIPTION
DATE
APPROVED
BY
Orig.
Issue
All
Initial Release
11/13/18
G.R. Lowe
A
All
*Updated the paragraph at the bottom of page 1 to
say “consult the Textron 400T Maintenance Manual”
from “consult the Component Maintenance Manual
*Updated the Abbreviations and Definitions list on
page 4 to include only those used in the document
*Updated the paragraph on page 5 in Section 1 under
DATA heading to describe the toilet cabinet assembly
with more detail to better comply with 14CFR
G23.3(a)(3)
*Changed “Work Unit Code (WUC)” to “Task Code” in
the inspection table on page 8 and added AFI-XXX
task code #’s
*Updated the inspection table on page 8 to conduct
GVI inspections for task A, B, & C on page 8
*Updated the paragraph under Section 2.2.b to say to
clean any excess water from the tank assembly and
removed reference to drain the entire system, page 8
*In Section 9.C. added items 1, 2, & 3 to describe the
Toilet Cabinet Assembly Removal and Installation
procedures, page 10
*In Section 9.E.1. added procedure to replace the
pump hose, page 12
*In Section 9.E.2., noted the timer location on page 12
*Added “Installation document reference under DATA
heading on page 5
*Added “as defined per supplier instructions” in the
Note concerning the antifreeze mixture in Section
9.D.5 on page 13
08/10/20
G.R. Lowe

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 3 of 13
TABLE OF CONTENTS
DESCRIPTION PAGE
REVISION PAGE..........................................................................................................................................2
TABLE OF CONTENTS................................................................................................................................3
ABBREVIATIONS AND DEFINITIONS.........................................................................................................4
1.0 INTRODUCTION...............................................................................................................................5
2.0 INSPECTION REQUIREMENTS AND OVERHAUL SCHEDULE....................................................8
3.0 DIMENSION AND ACCESS: ............................................................................................................8
4.0 LIFTING AND SHORING..................................................................................................................8
5.0 LEVELING AND WEIGHING ............................................................................................................9
6.0 TOWING AND TAXIING ...................................................................................................................9
7.0 PARKING AND MOORING...............................................................................................................9
8.0 PLACARDS AND MARKINGS..........................................................................................................9
9.0 SERVICE INFORMATION ................................................................................................................9
10.0 AIRWORTHINESS LIMITATIONS..................................................................................................13

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 4 of 13
ABBREVIATIONS AND DEFINITIONS
Abbreviations
Definitions
FAA
Federal Aviation Administration
General Visual
Inspection (GVI)
A visual examination of an interior or exterior area, installation or
assembly to detect obvious damage, failure or irregularity. This level
of inspection is made from within touching distance unless otherwise
specified. A mirror may be necessary to enhance visual access to all
exposed surfaces in the inspection area. This level of inspection is
made under normally available lighting conditions such as daylight,
hangar lighting, flashlight or droplight and may require removal or
opening of access panels or doors. Stands, ladders or platforms
may be required to gain proximity to the area being checked.
ICA
Instructions for Continued Airworthiness
STC
Supplemental Type Certificate

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 5 of 13
1.0 INTRODUCTION
The purpose of this Maintenance Manual Supplement and Instructions for
Continued Airworthiness (ICA) is to provide the maintenance technician with the
information necessary to ensure the continued airworthiness of the Aviation
Fabricators cabinet assembly, toilet and manual storage, part number 32-0531K,
when installed in accordance with Aviation Fabricators design data included on
STC Data List AF-644.
Modification to an aircraft obligates the operator to include the maintenance
information provided by this document into the operator’s aircraft Maintenance
Manual and operator’s aircraft scheduled maintenance program. This document
defines supplementary maintenance operations and frequencies recommended
by Aviation Fabricators Inc., to ensure the aircraft’s airworthiness.
The information contained herein addresses the requirements specified in 14
CFR 25.1529, Instructions for Continued Airworthiness and supplements the
basic Airplane Maintenance Manual only in those areas listed as pertains to the
cabinet assembly, as installed per the Aviation Fabricator STC Data List AF-644.
For limitations and procedures not contained in this supplement, consult the
basic Airplane Maintenance Manual.
DATA
All information to support the continued airworthiness of this modification is
contained in:
STC Data List: AF-644.
Parts: P/N 32-0531, Cabinet Assembly, Toilet and Manual Storage
Refer to respective drawing listed on STC Data List AF-644
Installation: Drawing D-10580
The toilet cabinet assembly is attached to the existing cabin floor track at FS
170.0 +/-1.0 using four track bolts, lock washers, and floor fittings. The toilet
assembly sits on a shelf in the toilet cabinet assembly and is attached to the toilet
cabinet assembly using four bolts. The toilet assembly is connected to the
aircraft electrical system using the existing electrical receptacle.
Once toilet cabinet assembly is installed, the toilet assembly is operated by lifting
the lid assembly and ensuring that the waste container cap is stowed. To active
the toilet press the flush switch which will pump fluid into the reservoir and will
thoroughly rinse the bowl. The flushing reservoir has sufficient capacity for 10-
13 flushes.

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 6 of 13
Design Change Control
All data and changes to the parts and assemblies will be tracked per STC Data
List AF-644 rev IR or later approved revision.
Applicable Aircraft
Textron Aviation 400T Aircraft
Cabinet Assembly, Toilet and Manual Storage
P/N 32-0531
Figure 1.0A

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 7 of 13
Toilet Assembly
P/N 17-0939
Figure 1.0B

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 8 of 13
2.0 INSPECTION REQUIREMENTS AND OVERHAUL SCHEDULE
1. To comply with14 CFR 25.1529, continue the cabinet assembly on the same
inspection and maintenance schedule used per the Beechcraft Maintenance
Manual for Cabinet Assembly, Toilet & Manual Storage, p/n 132-384024-1.
The toilet cabinet assembly requires no service other than a scheduled
inspection at 800 hours or 24 months whichever occurs first.
Task Code
Schedule
Date
Mech
Insp
AFI-100
A.
Conduct a General Visual
Inspection (GVI) of attaching
fittings for damage, security,
and function.
AFI-101
B.
Conduct a GVI of the cabinet
assembly for damage, and
corrosion.
AFI-102
C.
Conduct a GVI of the entire
assembly for fit and function.
AFI-103
D.
Check operation of toilet
assembly.
See Section 9.0.
2. Flushing toilet maintenance schedule:
a. Service and clean after each flight when toilet is used.
b. If the toilet is to remain inactive for an extended period, empty the
water/chemical solution and thoroughly flush the system with fresh water. Be
sure to clean any excess water from the toilet tank using paper towels.
3.0 DIMENSION AND ACCESS:
The installation of the toilet cabinet assembly does not change the dimensions of
the aircraft or alter the access to any existing aircraft system.
4.0 LIFTING AND SHORING
No change.

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 9 of 13
5.0 LEVELING AND WEIGHING
For the toilet, the dry weight plus fluid will be used to conduct the aircraft
weighing procedures for determining the empty weight of the aircraft:
Cabinet weight without toilet = 26.0 lbs
Toilet weight = 11.3 lbs
Flushing fluid reservoir liquid = 5.2 lbs
Waste tank pre-charge = 1.0 lbs
Total = 43.5 lbs
6.0 TOWING AND TAXIING
No change.
7.0 PARKING AND MOORING
No change.
8.0 PLACARDS AND MARKINGS
No change.
9.0 SERVICE INFORMATION
A. Leading Particulars
Waste Tank Capacity
1.25 gallon
Flushing Reservoir Capacity
2 quarts (9-12 flushes)
Operating Voltage
24-28 VDC
Operating Amperage
2 amp
Operating Time
1 second per flush

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 10 of 13
B. Chemicals Needed for Servicing
NOTE: Equivalent substitutes may be utilized in place of the following items:
Germicidal Deodorant
ChemKare of Monogram Sanitation
Disinfectant
Lysol
Anti-Freeze
Ethylene Glycol Solution Containing Anti-Foam Agent
Refer to SDS for chemicals to ensure proper precautions are observed for their
use.
C. Toilet Cabinet Servicing Instructions
1. Remove the Toilet Cabinet Assembly:
a. Open the front door of the cabinet assembly.
b. Loosen attaching bolts at the bottom of the cabinet assembly.
c. Unplug from power supply.
d. Lift cabinet assembly away from seat track.
2. Installation of the Toilet Cabinet Assembly:
a. Locate floor fittings in seat track to for Toilet Cabinet attachment.
b. Plug Toilet assembly into power supply and then set Toilet Cabinet into
place on seat track.
c. Open the front door of the cabinet assembly.
d. Attach Toilet Cabinet to track fittings using track bolt and lock washer.
e. Close front door.
See Figure 1.0A
3. If aircraft is to be operated without the Toilet Cabinet Assembly then the
operator needs to ensure that the existing aircraft wiring is stowed to prevent
damage to it. The operator will need to adjust the aircraft weight & balance
for removed toilet cabinet assembly.
D. Toilet Servicing Instructions
Servicing the waste container:
1. Lift the bowl assembly straight up and rest on lid angle. Secure with strap
assembly.
2. Place cap firmly onto waste container.
3. Grasp both handles and remove container from the cabinet.
4. Dispose of contents in a commode and rinse waste container.
5. Pre-charge container with approximately one pint of water and two ounces of
germicidal deodorant.

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 11 of 13
NOTE: If the aircraft is parked in sub-freezing temperatures, ensure an
appropriate amount of propylene glycol-based antifreeze containing an anti-
foam agent is added to the pre-charge mixture as defined per supplier
instructions.
6. Reinstall waste container in the toilet. Stow waste container cap.
Servicing the flushing reservoir:
1. Lift the bowl assembly straight up and rest on lid angle. Secure with strap
assembly.
2. Fill the reservoir with water to “Fill to Here” line.
3. Add 2 ounces of germicidal deodorant. See note under item 5 in waste
container servicing instructions.
4. Replace the bowl assembly on the cabinet seal. Wipe down the bowl and seat
with disinfectant.
Toilet functional test:
1. Fill reservoir to “Fill to Here” line.
2. Check that pump power wire plug is plugged into socket on rear wall of
cabinet.
3. Check that timer is connected to aircraft power, pump power wire and to flush
switch.
4. Depress and release flush button. Observe that flushing action continues for
approximately 1 second.
E. Toilet Troubleshooting
1. Perform the following procedures to isolate and identify possible problems:
Problem
Probable Cause
Action
Toilet will not cycle
Aircraft power not
operating
Check aircraft power,
fuses, circuit breakers.
Check input power to toilet.
Defective switch or
wiring
Check switch and wire for
continuity.
Defective flushing
pump motor
Return to Aviation
Fabricators or another
Certified Repair Station for
servicing of pump P/N
5250-AS-1
Defective timer
Replace timer (see section
E.2.).

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 12 of 13
Toilet cycles but
little or no flushing
liquid pumps to bowl
Inadequate flushing
fluid in reservoir
Fill reservoir to “Fill to
Here” line.
Broken or loose pump
hose
Replace hose P/N 5000-2-
2DLubricate each end of
the new hose with silicone
grease or petroleum jelly
and install it on the bowl
assembly and to the pump
by pressing straight down
on attachment fittings.
Broken or loose pump
impeller
Return to Aviation
Fabricators or another
Certified Repair Station for
servicing.
NOTE: To determine if the pump is defective, connect a separate power
supply to the pump leads. If the pump does not operate, return to Aviation
Fabricators for servicing. If the pump operates, replace the timer.
2. To replace timer, part number 17-0939-01, unplug the existing timer assembly
from the aircraft, toilet power, and switch and install a new timer in its place.
The timer is velcroed to the back panel inside the toilet cabinet assembly just
outboard of the toilet assembly.

Aviation Fabricators Inc. ICA Document No.: AF-645
805 North Fourth Street Revision (A)
Clinton, MO. 64735 Date: August 10, 2020
Page 13 of 13
10.0 AIRWORTHINESS LIMITATIONS
The information contained herein supplements the basic Maintenance Manuals only in
those areas listed, when the aircraft is modified in accordance with Aviation Fabricators
STC Data List AF-644 revision IR or later approved revision. For limitations and
procedures not contained in this supplement, consult the basic Airplane Maintenance
Manuals.
The Airworthiness Limitations section is FAA approved and specifies maintenance
required under Sec. 43.16 and 91.403 of the Federal Aviation Regulations unless an
alternative program has been FAA approved.
AIRWORTHINESS LIMITATIONS - LOG OF REVISIONS
REV.
EFFECTED
PAGE (s)
DESCRIPTION of REVISION
DATE
(IR)
All
Initial Release
11/13/18
AIRWORTHINESS LIMITATIONS
There are no new Airworthiness Limitations to the aircraft required when the toilet
cabinet assembly is installed.