[Federal Register Volume 77, Number 70 (Wednesday, April 11, 2012)]
[Notices]
[Pages 21834-21835]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-8653]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Airborne Radar Altimeter Equipment (For Air Carrier Aircraft)

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Cancellation of Technical Standard Order (TSO)-C67, Airborne 
Radar Altimeter Equipment (For Air Carrier Aircraft).

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SUMMARY: This is a confirmation notice of the cancellation of TSO-C67, 
Airborne Radar Altimeter Equipment (For Air Carrier Aircraft). The 
effect of the cancelled TSO will result in no new TSO-C67 design or 
production approvals. However, cancellation will not affect any current 
production of an existing TSO authorization (TSOA). Articles produced 
under an existing TSOA can still be installed per the existing 
airworthiness approvals, and all applications for new airworthiness 
approvals will still be processed.

SUPPLEMENTARY INFORMATION: 

Background

    On November 15, 1960, the FAA published TSO-C67, Airborne Radar 
Altimeter Equipment (for air carrier aircraft). Since 1978, there have 
been no new applications for TSOA for TSO-C67. Our research indicates 
there are no authorized manufacturers currently

[[Page 21835]]

manufacturing, advertising, or selling TSO-C67 compliant equipment. 
Therefore, given the obsolescence of the equipment, and the lack of 
industry interest in TSO-C67 product designs, we proposed cancelling 
TSO-C67. Please note that TSO-C87, Airborne Low Range Radio Altimeter, 
is currently used for Radio Altimeter certification and is not affected 
by this action.

Comments

    There were no comments received during the public comment period of 
the Federal Register Notice of the FAA's intent to cancel TSO-C67.

Conclusion

    TSO-C67 is cancelled effective September 30, 2012. Please note that 
TSO-C87, Airborne Low Range Radio Altimeter, is currently used for 
Radio Altimeter certification and is not affected by this action.

    Issued in Washington, DC, on April 6, 2012.
Susan J.M. Cabler,
Assistant Manager, Aircraft Engineering Division, Aircraft 
Certification Service.
[FR Doc. 2012-8653 Filed 4-10-12; 8:45 am]
BILLING CODE 4910-13-P