ASB 204B-12-68 Page 1 of 6

ECCN EAR99 ALERT SERVICE BULLETIN 204B-12-68

10 October 2012

MODEL AFFECTED: 204B

SUBJECT: P/N 205-001-720-001 CABLE ASSEMBLY, ONE TIME INSPECTION FOR DEFECTIVE BODY, P/N

205-001-742-001

HELICOPTERS AFFECTED: ALL 204B HELICOPTERS

COMPLIANCE: PART I (Inspection): Within the next 25 flight hours

PART II (Replacement): Within the next 100 flight hours after receipt of this ASB, but no later than 31 January 2013

DESCRIPTION:

A number of P/N 205-001-720-001 cable a ssemblies have been manufactured with

defective P/N 205-001-742-001 bodies. The bodies are mismachined such that the P/N 0301245 barrel assembly will not fully engage in the body cavity. This ASB is a one-time inspection of all P/N 205-001-720-001 cable assemb lies for the defective

condition. Defective cable assemblies must be replaced as noted in the Compliance Section of this ASB. Applicability of this bulletin to any spare part shall be determined prior to its installation on an affected helicopter.

APPROVAL:

The engineering design aspects of th is bulletin are FAA/ODA approved.

CONTACT INFO:

For any questions regarding this bulletin, please contact:

Bell Helicopter Product Support Engineer ing - Medium Military Helicopters
Tel: 817-280-3548 / mts-medium@bh.comASB 204B-12-68 Page 2 of 6

ECCN EAR99 MANPOWER:

Approximately 1 man-hour is required to complete PART I of this bulletin. Approximately 8 man-hours are required to complete PART II of this bulletin. These estimates are based on hands-on time, and may vary with personnel and facilities

available.

WARRANTY:

There is no warranty credit applicable for parts or labor associated with this bulletin.

MATERIAL:

Required Material: The following material may be required for the accomplishment of this bulletin and may be obtained through your Bell He licopter Textron Supply Center.

Part Number Nomenclature Qty

205-001-720-001 Cabl e Assembly 2

Consumable Material: The following material may be required to a ccomplish this bulletin, but may not require ordering, depending on the operator ’s consumable material stock levels. This material may be obtained through your Bell He licopter Textr on Supply Center.

Part Number Nomenclature Qty Reference *

AN23-11 Bolt 2

AS100028 Lockwire AR C-405

MS14145L3 Nut 2 MS24665-151 Pin, Split 2

NAS1149F0363P Washer 2

* C-XXX numbers refer to the co nsumables list in BHT-ALL-SPM Standard Practices Manual

SPECIAL TOOLS:

None required.

WEIGHT AND BALANCE:

Not affected.ASB 204B-12-68 Page 3 of 6

ECCN EAR99 ELECTRICAL LOAD DATA:

Not affected.

REFERENCES:

BHT-204B-M&O Maintenance and Overhaul Manual

BHT-204B-IPB Illustra ted Parts Breakdown

PUBLICATIONS AFFECTED:

None affected.

ACCOMPLISHMENT INSTRUCTIONS:

PART I - Inspection

1. Prepare helicopter for maintenance.

2. Open the vertical fin tail rotor driveshaft cover.

3. Gain access to the lower ends of t he P/N 205-001-720-001 cabl e assemblies at the

connection to the P/N 0301245 barre l assembly. See Figure 1.

4. Refer to Figure 1. Inspect for the conditi on shown in View B that prevents complete seating of the P/N 0301245 barrel assembly in the bottom of the P/N 205-001-742- 001 body. If necessary, remove lockwire for a clear view.

5. The condition shown in Figu re 1, View B, is not accept able and is cause to replace the affected P/N 205-001-720-001 cable assembly.

6. For cable assemblies that fully engage the P/N 0301245 barrel assembly and do not exhibit the condition of View B, no furt her action is required. If lockwire was removed to facilitate inspection, secure barrel assembly and cable connection with new lockwire and make an entry in helicop ter historical service records showing compliance with this ASB.

7. For defective cable assemblies, go to PART II.ASB 204B-12-68 Page 4 of 6

ECCN EAR99 PART II – Replacement of De fective Cable Assemblies

1. Replace defective cable a ssemblies within the next 100 f light hours after receipt of this ASB, whichever occurs first, but no later than 31 December 2012 .

2. For defective cable assemblies that are not to be repl aced immediately:

a. If lockwire was removed to facilitate inspection, secure barrel assembly and

cable connection with new lockwire and ins pect daily for security and condition until cable assembly is replaced.

b. Make an entry in helicopter historical services records noting that replacement of defective cable assemblies is required at the next scheduled inspection or 50 flight hours after receipt of this ASB, whic hever occurs first, but no later than 31

December 2012 .

3. Refer to BHT-204B-M&O for ca ble replacement procedures.

4. Once cable assemblies have been replaced, make an entry in helicopter historical service records indicating compliance with this Alert Service Bulletin.ASB 204B-12-68 Page 5 of 6

ECCN EAR99ASB 204B-12-68 Page 6 of 6

ECCN EAR99