ASB UH-1H-12-08 

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 ALERT SERVICE BULLETIN UH-1H-12-08 

28 August 2012 

MODEL AFFECTED: UH-1H 

SUBJECT: P/N 205-001-720-001 CABLE ASSEMBLY, ONE 

TIME INSPECTION FOR DEFECTIVE BODY, P/N 

205-001-742-001 

HELICOPTERS AFFECTED: ALL UH-1H HELICOPTERS 

 

COMPLIANCE: PART I (Inspection): At the next Daily Inspection 

Part II (Replacement) At the next Phase Inspection or 

50 flight hours after receipt of this ASB, whichever 

occurs first, but no later than 31 December 2012 

DESCRIPTION: 

A number of P/N 205-001-720-001 Cable Assemblies 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 Assemblies 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 aircraft. 

APPROVAL: 

The engineering design aspects of this bulletin are Bell Helicopter Engineering 

approved. 

CONTACT INFO: 

For any questions regarding this bulletin, please contact: 

Bell Helicopter Product Support Engineering - Medium Military Helicopters 

Tel: 817-280-3548 / mts-medium@bh.com 

Distribution A: Approved for Public Release IAW DOD Memo 12-S-2966 
ASB UH-1H-12-08 

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MANPOWER: 

Approximately 1.0 man-hours are required to complete Part I of this bulletin. 

Approximately 8.0 man-hours are required to complete Part II of this bulletin. The 

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 Helicopter Textron Supply Center. 

Part Number Nomenclature Qty

205-001-720-001 Cable Assembly 2 

Consumable Material: 

The following material may be required to accomplish this bulletin, but may not require 

ordering, depending on the operator’s consumable material stock levels. This material 

may be obtained through your Bell Helicopter Textron Supply Center.

Part Number Nomenclature Qty Reference * 

AN23-11 Bolt 2 

AS100028 Lockwire AR C-405 

MS14145-3 Nut 2 

MS24665-151 Pin, Split 2 

NAS1149F0363P Washer 2 

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

SPECIAL TOOLS: 

None required. 

WEIGHT AND BALANCE: 

Not affected. 

ELECTRICAL LOAD DATA: 
ASB UH-1H-12-08 

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Not affected. 

REFERENCES: 

TM 55-1520-210-23-2 AVUM & AVIM Maintenance Instructions 

TM 55-1520-210-23P-2 AVUM & AVIM Repair Parts and Special Tools List 

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 the P/N 205-001-720-001 Cable Assemblies at 

the connection to the P/N 0301245 Barrel Assembly. See Figure 1, sheet 1. 

4. Refer to Figure 1, sheet 2. Inspect for the condition 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. As necessary, remove lockwire for a clear view. 

5. The condition shown in Figure 1, sheet 2, View B, is not acceptable 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 further action is required. If lockwire was 

 removed to facilitate inspection, secure barrel assembly and cable connection 

 with new lockwire and make an entry in the helicopter records showing compliance 

 with this ASB. 

7. For defective cable assemblies, go to Part II. 

PART II – Replacement of Defective Cable Assemblies 

1. Replace defective cable assemblies at the next Phase Inspection or 50 flight 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 replaced immediately: 
ASB UH-1H-12-08 

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

cable connection with new lockwire and inspect daily for security and condition 

until cable assembly is replaced. 

b. Make an entry in the helicopter records noting that replacement of defective 

cable assemblies is required at the next Phase Inspection or 50 flight hours 

after receipt of this ASB, whichever occurs first, but no later than 31 December 

2012 . 

3. Refer to TM 55-1520-210-23-2 for cable replacement procedures. 

4. Once cable assemblies have been replaced, make an entry in the helicopter 

records showing compliance with this ASB. 
ASB UH-1H-12-08 

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ASB UH-1H-12-08 

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