Biocidal Preventative Treatment for Aircraft in Long-Term Storage - With Fuel Mixed with Kathon Biocide

TASK 28-11-00-600-010-A-01
Biocidal Preventative Treatment for Aircraft in Long-Term Storage - With Fuel Mixed with Kathon Biocide

1. Reason for the Job
Do this procedure only when an aircraft is put in long-term storage of 30 days or more.
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 12-11-28-650-003-A	Pressure Refuel with Automatic Control
TASK 28-00-00-910-001-A	Fuel Safety Procedures
TASK 28-11-00-600-010-A	Biocidal Preventative Treatment for Aircraft in Long-Term Storage - With Fuel Mixed with Biobor Biocide
TASK 28-11-00-600-010-A-01	Biocidal Preventative Treatment for Aircraft in Long-Term Storage - With Fuel Mixed with Kathon Biocide
TASK 28-11-00-600-010-A-02	Biocidal Preventative Treatment for Aircraft in Long-Term Storage - Using Biobor Biocide With a Metered Injection Rig
TASK 28-11-00-600-010-A-03	Biocidal Preventative Treatment for Aircraft in Long-Term Storage - Using Kathon Biocide With a Metered Injection Rig
TASK 28-25-00-650-001-A	Pressure Defuel

3. Job Set-up
Subtask 28-11-00-941-111-A

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

A. Safety Precautions

NOTE: For the equivalent procedure with the use of Biobor, refer to (Ref. AMM TASK 28-11-00-600-010).

(1) You must obey the fuel safety procedures when you do work on the fuel system (Ref. AMM TASK 28-00-00-910-001).

Subtask 28-11-00-860-114-A

B. Aircraft Maintenance Configuration
(1) Defuel the aircraft (Ref. AMM TASK 28-25-00-650-001).

NOTE: If you defueled the aircraft before you park it, it is not necessary to defuel the aircraft again.

4. Procedure
Subtask 28-11-00-670-071-A

A. Biocidal Preventative Treatment for Aircraft in Long-Term Storage - With Fuel Mixed with Kathon Biocide

CAUTION: DO NOT USE A LARGE QUANTITY OF KATHON BIOCIDE IN THE FUEL. MORE THAN 100 PPM IS NOT PERMITTED IN:

THE ENGINES
THE FUEL TANKS
THE FUEL UPLIFTED TO THE AIRCRAFT.

(1) Obey the Flight Manual limits for fuel additives. Refuel the aircraft (Ref. AMM TASK 12-11-28-650-003) with fuel mixed with Kathon at a concentration of 50 ppm (by volume).

5. Close-up
Subtask 28-11-00-942-117-A

A. Removal of Equipment
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.9 from 2019] 2026.04.02 06:16:59 UTC