Alpine Aerotech has developed the Retaining Ring Kit to address the chronic cracking problem in the attachment flange of OEM exhaust ducts.

Kit is comprised of the AAL Retaining Ring (AAL-061-300-101) and all associated hardware for installation.

Products - Bell Helicopters

Retaining Ring, Kit

Alpine Aerotech has developed the Retaining Ring Kit to address the chronic cracking problem in the attachment flange of OEM exhaust ducts.

Kit is comprised of the AAL Retaining Ring (AAL-061-300-101) and all associated hardware for installation.

Aircraft Make Bell Helicopters , 
Aircraft Model Bell 212 ,  Bell 412 , 
Product System Air Management , 
Product Description Retaining Ring, Kit
Alpine Part Number

AAL-061-300-021
Alternate Configurations N/A
Price USD

$995.00
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Features & Benefits

  • Alpine Aerotech has designed the Retaining Ring to distribute the axial load of the bolts/washers evenly when secured in position over the exhaust duct flange.
  • Compatible with both OEM (fillet welded flange) and Alpine Aerotech (formed flange) exhaust ducts.
  • Precise CNC machined construction
  • Includes a complete set of new nuts, bolts, and washers for installation.
  • Replacement parts available upon inquiry.

Approvals

Approval STC Number AC Approved
TCCA SH00-11 212, 412, 412EP, 412CF
FAA SR01223NY 212, 412, 412EP
GER RC 1147 212, 412
JCAB N/A N/A
DCAG N/A N/A

Specifications

  • Weight: Negligible
  • Balance: Long. N/A; Lat. Arm N/A
  • Install Time: 3 Hours

Warranty

All accessories/components manufactured by Alpine Aerotech LP are warranted to be free from defects in workmanship performed by Alpine Aerotech LP for a period of twelve (12) months or six hundred (600) hours of operation; whichever occurs first, after the date of shipment.

Cross Reference Part Numbers

  • N/A

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