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ALERT SERVICE BULLETIN 1111':~ REVISION NOTICE 

Ball Helicopter DATE Sept 19, 2007 

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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. 

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~ ~ AN APPROPRIATE 

IF OWNERSHIP 

ENTRY 

OF 

SHOULD 

AIRCRAFT 

BE MADE 

HAS CHANGED 

IN THE AIRCRAFT 

PLEASE FORWARD 

LOGBOOK UPON 

TO NEW 

ACCOMPLISHMENT 

OWNER 

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Bell Helicopter No. 206L-07-148 

DATE SEP 19, 2007 

ALERT SERVICE BULLETIN ~~ 

A Subsidiary of Textron 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, 206L 1, 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 of Bell Helicopters who comply with the instructions in this Bulletin 

will be eligible to return defective blades identified by serial number in the compliance 

section of this 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 44-1985-84 7040 

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-5431 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 

400-016-1 00-1 09 A-1 19 

A-120 

400-016-100-113 A-106 

A-361 

A-57 

A-147