# ~IIIIIIIIIIIIIIIA ALERT SERVICE BULLETIN

# 1111':~ REVISION NOTICE 

## Ball Helicopter DATE Sept 19, 2007

# ~**~ ~** **~**

# ~ TEXTRON A Subsidiary ofTextron Inc.

TO : 

### All Owners/Operators of Bell 206L Series Helicopters SUBJECT: 

### REVISION "A" TO ALERT SERVICE BULLETIN 206L-07-148: TAIL ROTOR BLADE ASSEMBLY, INSPECTION OF Revision "A" to this bulletin adds a statement for tail rotor blades that have been returned to an authorized Bell Helicopter rotor blade repair station for inspection in accordance with this ASS
. These tail rotor blades will be permanently identified with the letter "L" immediately following the part number on the tail rotor blade identification plate . Revision "A" also adds twelve tail rotor blade serial numbers to the list affected by this ASS
.

# ~**~ ~** **~** AN APPROPRIATE ENTRY SHOULD BE MADE IN THE AIRCRAFT LOGBOOK UPON ACCOMPLISHMENT

# ~~ IF OWNERSHIP OF AIRCRAFT HAS CHANGED PLEASE FORWARD TO NEW OWNER

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# ~IIIIIIIIIIIIIIIA Bell Helicopter No. 

### 206L-07-148 DATE SEP 19, 2007 

### ALERT SERVICE BULLETIN



# ~~ A Subsidiary ofTextron Inc. DATE 

### SEP 11, 2007



# ~ REV 

### A

MODEL AFFECTED:
SUBJECT:

HELICOPTERS AFFECTED:

COMPLIANCE:
DESCRIPTION: PAGE



### 206L Series
TAIL ROTOR BLADE ASSEMBLY, INSPECTION OF

All Model 206L, 206L1, 206L3 and 206L4 helicopters.
Prior to next flight.

The purpose of this bulletin is to achieve complete distribution of the attached RBI letter to Bell Helicopter's current operator list. Affected tail rotor blades that have been inspected/repaired in accordance with this

# I ASB shall have letter "L" vibro-etched immediately following the part number on the A tail rotor blade 10 tag and returned to service .
APPROVAL: Not required .

IF OWNERSHIP OF AIRCRAFT HAS CHANGED PLEASE FORWARD TO NEW OWNER 

# ~

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### September 11 , 2007 Mr. Jack Denham Executive Director of Product Support Bell Helicopter Textron
Rotor Blades , Inc. (RBI) has received reports of three incidents in which weights were slung from tail rotor blades during flight significant causing vibration. The failures reported occurred ranging from 400 flight hours since repair to as short as 12 minutes . We have determined that this may affect most Bell models. To ensure safety and to expedite re-inspection required, we advise and ask you distribute to fleet on a most urgent basis . Investigation indicates that tip weight screws may be missing the adhesive applied during the weight and balance process on these blades . The blades in question were all processed by one former RBI technician . RBI has initiated customer contact and inspection of blades to reduce customer impact. Additionally , we are working with our local FAA representative to ensure regulations are met. I ask Bell support and assistance to ensure DOT and OEM requirements are met for release . RBI is capable of carrying out inspection to existing requirements. Balance weight screws must be accessed and verified for correct installation. This must be carried out by a Bell approved Rotor Blade Repair Facility. BEFORE THE NEXT FLIGHT, ALL OPERATORS SHOULD INSPECT THEIR TAIL ROTOR BLADES USING THE ATTACHED LIST TO DETERMINE WHETHER THEIR BLADES ARE AFFECTED
. ALL AFFECTED BLADES SHOULD BE .REMOVED FROM SERVICE IMMEDIATELY AND RETURNED TO AN RBI FACILITY FOR EXAMINATION AND REPAIR. 

### The list attached includes all blades RBI has determined re-inspection is required on. Troy Penny Director of Operations Rotor Blades Inc.Warranty Statement: Owners 

### I Operators ofBell Helicopters who comply with the instructions in this Bulletin will be eligible to return defective blades identified by serial number in the compliance section ofthis bulletin to your nearest RBI facility for inspection and repair at no cost. In order to process your request please contact your local RBI facility to make arrangements for the return ofthe blade or blade's using RBI's FedEx account #2546-92336. Rotor Blades Inc. 580 St Etienne Road Broussard, LA 70518 Phone 337-839-2119 Fax 337-839-2122 RBI Hawker Limited LIU FZS 1 BD06/07, JAFZ (South) P.O. Box 16784 Dubai, UAE Phone 971-4-886-0144 Fax 971-4-886-0145 Rotor Blades Limited 5B Crusader Park Bath Road Warmintser Wiltshire BA 12 8SJ United Kingdom Phone 44-1985-847040 Fax 44-1985-846356

### Part Number SIN Part Number S/N 206-016-201-127 CS-5638 206-016-201-131 CS-7855 206-016-201-131 CS-12430 CS-7856 CS-9012 CS-7861 CS-9783 CS-8468 CS-9871 CS-8765 CS-9908 CS-8869 

### A CS-8310 CS-9133 CS-9592 CS-9192 CS-6938 CS-9563 CS-6941 CS-10071 CS-8299 CS-10337 CS-543 1 CS-10725 CS-5609 CS-10011 CS-10093 CS-10710 CS-12030 CS-12660 CS-12666 CS-10279 CS-7482 CS-7835 CS-8103 CS-9511 CS-9521 CS-9690 CS-12351 CS-11622 CS-11623 CS-11003 CS-8656 206-016-201-135 CS-13480 CS-13829 CS-13893 CS-14257 CS-14258 CS-14767 CS-14814 CS-15057 400-0 16- 100-1 09 A-1 19 A-120 400-0 16-1 00- 113 A- 106 A-361 A-57 A-147