# General Electric Service Bulletin 73-0016: No revision named

- Rights: © General Electric Company. Filed by the FAA in regulations.gov docket FAA-2019-0352, the docket of AD 2019-16-02. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [General Electric Service Bulletin 73-0016](https://openairdocs.org/service-documents/ge/sb-73-0016.md)
- Title as filed: HF120 SB_73-0016-R01_Adds rebuilt F100 PN
- Pages: 5
- PDF: https://openairdocs.org/files/sha256/db/dc/dbdc0f5b795b7e67c7c76a0e9d5478e8260436c8bab0109d27fe3abf3445129d
- Page: https://openairdocs.org/service-documents/ge/sb-73-0016/file/dbdc0f5b795b

## Text

Some pages are OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1

GHAE HF120 Service Bulletins (SBs)
SB 73-0016 R01 ENGINE FUEL AND CONTROL - GENERAL (73-00-00) - Replacement of the Fuel
Pump Metering Unit (FPMU) Assembly
Date Printed:
2019/04/10
GE Honda AERO ENGINES PROPRIETARY INFORMATION – Not to be
used, disclosed to others or reproduced without the express
written consent of GE Honda. This technical data is EAR
controlled pursuant to 15 CFR Parts 730-774. Transfer of this
data to a Non-US Person, without the proper U.S. Government
authorization is strictly prohibited.
Page
1 of 5
Revised: 2018/11/08
Issued: 2018/08/07
HF120 SERVICE BULLETIN - 73-0016 R01
SB 73-0016 R01 ENGINE FUEL AND CONTROL - GENERAL
(73-00-00) - REPLACEMENT OF THE FUEL PUMP METERING UNIT
(FPMU) ASSEMBLY
GE Honda Aero Engines Proprietary Information
The information contained in this document is GE Honda Aero Engines
(GHAE) proprietary information and is disclosed in confidence. It is
the property of GHAE and shall not be used, disclosed to others, or
reproduced without the express written consent of GHAE , including, but
without limitation, it is not to be used in the creation, manufacture,
development, or derivation of any repairs, modifications, spare parts,
designs, or configuration changes or to obtain FAA or any other
government or regulatory approval to do so. If consent is given for
reproduction in whole or in part, this notice and the notice set forth
on each page of this document shall appear in any such reproduction in
whole or in part.
This technical data is EAR controlled pursuant to 15 CFR Parts 730-774.
Transfer of this data by any means to a Non-US Person, whether in the
United States or abroad, without the proper U.S. Government
authorization (e.g., License, exemption, NLR, etc.), is strictly
prohibited. The information contained in this document may also be
controlled by the Japanese export control laws. Unauthorized export or
re-export is prohibited.
Copyright (2018) GE Honda Aero Engines, LLC, U.S.A.
TRANSMITTAL INFORMATION
REVISION 1 TO SERVICE BULLETIN 73-0016
Revision 1 is issued to add the FPMU configuration, P/N 24100-Q0A-F100,
as an alternative configuration to P/N 24100-Q0A-G000.
The original was issued on August 07, 2018.
Revision bars in the left margin identify changes.
1. PLANNING INFORMATION
A. Effectivity
* * * HF120-H1A
(1) This Service Bulletin is applicable to HF120 engines with the serial
numbers that follow:
*883105 and 883130 through 883325, except 883152, 883153, 883241, 883244,
883282 and 883321.
NOTE:These serial numbers are the best available data.
(2) This Service Bulletin is applicable to Fuel Pump Metering Unit (FPMU)
Assembly, P/N 24100-Q0A-F000.

### Page 2

GHAE HF120 Service Bulletins (SBs)
SB 73-0016 R01 ENGINE FUEL AND CONTROL - GENERAL (73-00-00) - Replacement of the Fuel
Pump Metering Unit (FPMU) Assembly
Date Printed:
2019/04/10
GE Honda AERO ENGINES PROPRIETARY INFORMATION – Not to be
used, disclosed to others or reproduced without the express
written consent of GE Honda. This technical data is EAR
controlled pursuant to 15 CFR Parts 730-774. Transfer of this
data to a Non-US Person, without the proper U.S. Government
authorization is strictly prohibited.
Page
2 of 5
B. Description
This Service Bulletin gives the instructions for the customer to
replace the FPMU Assembly, P/N 24100-Q0A-F000 with P/N
24100-Q0A-F100 or 24100-Q0A-G000 on the affected engines in
service.
C. Compliance
Category 2
GHAE recommends that you do this Service Bulletin as soon as
possible without effect on operational service but before 600
hours.
D. Concurrent Requirements
Installation of the Thermal Protector is necessary. See
Configuration Chart (2.C). If it has not been installed, do SB
73-0004.
E. Reason
(1) Objective:
To remove part(s) from service.
(2) Condition:
The gears in the FPMU Assembly, P/N 24100-Q0A-F000, do not have sufficient
margin against wear.
(3) Cause:
Dimensional variation within the drawing tolerance can result in gear teeth
wear.
(4) Improvement:
Replace with the upgraded FPMU Assembly with improved wear resistance
gears.
(5) Substantiation:
Substantiation is by analysis and comparative analysis.
F. Approval
The data contained in this Service Bulletin has been reviewed by
the FAA or authorized entity representing the FAA and the
repair(s) and modification(s) herein comply with the applicable
Aviation Regulations and are APPROVED for installation in the
model(s) listed in this Service Bulletin.
G. Manpower
After you get access to the FPMU Assembly, you will need
approximately 4.0 man-hours to do the replacement procedure in
this Service Bulletin.
H. Weight and Balance
The complete compliance with this Service Bulletin decreases
weight by 0.284 lb (0.128 kg) when replacing with the FPMU, P/N
24100-Q0A-G000. Weight and balance are not changed when replacing
with the FPMU, P/N 24100-Q0A-F100.
I. References (Use the latest version of these documents)
GEK 112112-H1, HF120 Line Maintenance Manual (LMM), 73-00-00,
REMOVAL 002
HF120 Service Bulletin Number 73-0004
HF120 Service Bulletin Number 73-0015
HF120 Service Bulletin Number 73-0018
NOTE:The reference documents listed below are for the engine manufacturer's
internal use only:
HF120-FMD-17-005
CID: 950252, 950318

### Page 3

GHAE HF120 Service Bulletins (SBs)
SB 73-0016 R01 ENGINE FUEL AND CONTROL - GENERAL (73-00-00) - Replacement of the Fuel
Pump Metering Unit (FPMU) Assembly
Date Printed:
2019/04/10
GE Honda AERO ENGINES PROPRIETARY INFORMATION – Not to be
used, disclosed to others or reproduced without the express
written consent of GE Honda. This technical data is EAR
controlled pursuant to 15 CFR Parts 730-774. Transfer of this
data to a Non-US Person, without the proper U.S. Government
authorization is strictly prohibited.
Page
3 of 5
J. Publications Affected
None.
K. Interchangeability
Qualified interchangeability.
FPMU Assembly, P/N 24100-Q0A-F000, FPMU Assembly, P/N
24100-Q0A-G000, and FPMU Assembly, P/N 24100-Q0A-F100, are
interchangeable; and the thermal protector must be installed to
the engine by SB 73-0004.
L. Software Accomplishment Summary
Not applicable.
2. MATERIAL INFORMATION
A. Material - Price and Availability
(1) See below:
Part Number Qty/ Eng Part Name
Unit ($)
Price 
Pkg
Qty
Lead Time
Days
24100-Q0A-G000 (1) Assembly, FPMU Q (1) Q
24100-Q0A-F100 ALT Assembly, FPMU Q (1) Q
J1438P228 (1) Packing, Preformed Q (1) Q
J1438P113 (1) Packing, Preformed Q (1) Q
NOTE:Prices are provided for planning purposes and are subject to change.
(2) Other Spare Parts:
Part Number Qty/ Eng Part Name
Unit ($)
Price 
Pkg
Qty
Lead Time
Days
AS5355/2-15B (1) V-Band, FPMU Q (1) Q
(3) Consumables:
REFER TO THE PRODUCT LABEL AND THE MANUFACTURER'S (MATERIAL) SAFETY DATA
SHEET (SDS) FOR INSTRUCTIONS ON THE HAZARDS, STORAGE, SAFE HANDLING AND
PROPER USE OF CONSUMABLE PRODUCTS.
Code Description
C02-021 Oil, Grade 1010
(MIL-PRF-6081)
(grade 1010
oil)
C02-023 Oil, Engine
Lubricating
(MIL-PRF-23699)
(engine oil)
C10-143 Safety Cable
Assembly (321
Stainless Steel
AS 4536, AS
3510) (safety
cable)
C10-182 Cloth, Cleaning
For Aircraft
Structural
(SAE-AMS 3819,
BMS 15-5)
(clean cloth)
B. Industry Support Information
Contact your HF120 Authorized Service Provider for pricing and
lead-time data.
C. Configuration Chart
Old Chg/

### Page 4

GHAE HF120 Service Bulletins (SBs)
SB 73-0016 R01 ENGINE FUEL AND CONTROL - GENERAL (73-00-00) - Replacement of the Fuel
Pump Metering Unit (FPMU) Assembly
Date Printed:
2019/04/10
GE Honda AERO ENGINES PROPRIETARY INFORMATION – Not to be
used, disclosed to others or reproduced without the express
written consent of GE Honda. This technical data is EAR
controlled pursuant to 15 CFR Parts 730-774. Transfer of this
data to a Non-US Person, without the proper U.S. Government
authorization is strictly prohibited.
Page
4 of 5
New 
Part Number
Qty/
Eng Part Name
Part Number/
IPC Location
Qty/
Eng Op Code
Sprt
Code
2461M40G01/
G02/G03/G04/
G05/G06/G07/
G08/G09
(X) Assembly,
Engine - Base 
(SIN 00101)
2461M40G01/
G02/G03/G04/
G05/G06/G07/
G08/G09
(X) RM -/-
.24100-Q0A-G000 
(01-200A,
72-00-05) 
(1) Assembly, FPMU 
(SIN 30000)
.24100-Q0A-F000 
(01-200,
72-00-05) 
(1) RE 5/A
.24100-Q0A-F100 
(01-200B,
72-00-05) 
ALT Assembly, FPMU 
(SIN 30000)
-- -- -- --
Operation Codes
RE=Replace
RM=Remain
Change Codes
5=Qualified Interchangeability
Support Codes
A=Old parts will no longer be supplied.
D. Parts Disposition
Return old parts to:
Honda Aero, Inc.
2989 Tucker Street
Burlington, NC 27215 U.S.A.
E. Tooling - Price and Availability
2C82122G01 BOV Angle Block (rigging tool) - contact your ASP for
this tool.
3. ACCOMPLISHMENT INSTRUCTIONS
A. General
(1) This procedure gives instructions to replace the FPMU Assembly (01-200,
72-00-05).
(2) Obey all applicable safety and environmental controls, or injury to
personnel can occur.
(3) If you must comply with this bulletin on both engines of the same aircraft,
it is recommended to do the complete installation on one engine and do all
required testing and engine runs. If engine performance is satisfactory, do
the installation on the remaining engine.
(4) Do not do this procedure unless you are a qualified technician.
(5) Do an inspection of all the engine parts that you can see when you do
maintenance. Examine all the removed parts that you will install again.
Examine all the parts that are not removed, but you can see during
maintenance.
B. FPMU Assembly Replacement
(1) Replace the FPMU Assembly. Refer to HF120 LMM (GEK 112112-H1), 73-00-00,
REMOVAL 002, REPLACEMENT OF THE FUEL PUMP METERING UNIT.
C. Service Bulletin Compliance Record
(1) Once complied with this Service Bulletin, complete and sign the Compliance
Record attached to the end of this Service Bulletin. Then, scan and submit
it as a Technical Inquiry via my.gehonda.com customer service portal
(include aircraft serial number and this Service Bulletin number in the
inquiry subject) or send it to your GHAE Field Technical Manager.

### Page 5 (OCR)

GHAE HF120 Service Bulletins (SBS)
SB 73-0016 RO1 ENGINE FUEL AND CONTROL - GENERAL (73-00-00) - Replacement of the Fuel
Pump Metering Unit (FPMU) Assembly
HF120 SERVICE BULLETIN COMPLIANCE RECORD
SERVICE BULLETIN TITLE:  Replacement of Fuel Pump Metering Unit (FPMU) Assembly
SERVICE BULLETIN NO.:  73-0016
SB REVISION:  01
AIRCRAFT INFORMATION:
AIRCRAFT
AIRCRAFT S/N:
REGISTRATION:
AIRCRAFT MODEL:
ENGINE INFORMATION:
ESN:  ENGINE POSITION:
ENGINE MODEL:
ENGINE TSN:  ENGINE CSN:
COMPONENT / PART INFORMATION:
PART P/N OFF:  FPMU ASSEMBLY, 24100-Q0A-F000:
PART S/N OFF:
PART OFF TSN:  PART OFF CSN:
PART P/N ON:  FPMU ASSEMBLY, C]24100-Q0A-F100 OR C24100-Q0A-G000:
PART S/N ON:
PART ON TSN:  PART ON CSN:
OWNER / OPERATOR INFORMATION:
OWNER / OPERATOR:
ADDRESS LINE 1:
ADDRESS LINE 2:
CITY:  STATE:  ZIP:
COUNTRY:
I HEREBY CERTIFY THIS HF 120 SERVICE BULLETIN HAS BEEN ACCOMPLISHED:
DATE:
PRINT NAME:
SIGNATURE:
TITLE:
COMPANY:
COMMENTS WITH REGARDS TO THIS SERVICE BULLETIN:
SEE INSTRUCTIONS IN THE SERVICE BULLETIN TO SUBMIT THIS SB COMPLIANCE RECORD TO
GE HONDA AERO ENGINES
5044111-00
HF120 Service Bulletin Compliance Record
Figure l
GE Honda Aero Engines Proprietary Data
Use or disclosure of the data on this sheet, page,  or image is subject to the restrictions noted
on the first or title page.
GE Honda AERO ENGINES PROPRIETARY INFORMATION - Not to be
used, disclosed to others or reproduced without the express
Date Printed:  technical data is EAR  Page
2019/04/10  controlled pursuant to 15 CFR Parts 730-774. Transfer of this  5 of 5
data to a Non-US Person, without the proper U.S. Government
authorization is strictly prohibited.

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