NTSB -- NTSB Safety Recommendations A-10-124 through -128

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NTSB SAFETY RECOMMENDATION

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National Transportation Safety Board

Washington, DC 20594

November 4, 2010

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NTSB Safety Recommendations A-10-124 through -128

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The National Transportation Safety Board recommends that the

Federal Aviation Administration:

Redefine the boundaries of the East River common traffic

advisory frequency (CTAF) so that the Downtown Manhattan

Heliport will be located in the area that uses the Hudson

River CTAF. (A-10-124)

Revise 14 Code of Federal Regulations 93.352 to specify

altitudes of use for aircraft conducting local operations in

the Hudson River special flight rules area so that the

regulation includes required operating altitudes for both

local and transiting aircraft, and incorporate the altitude

information for local operations onto published visual

flight rules aeronautical charts for the area. (A-10-125)

Update Advisory Circular 90-48C to reflect current-day

operations, including (1) a description of the current

National Airspace System and airspace classifications, (2)

references to air tour operational areas as high-volume

traffic environments, and (3) guidance on the use of

electronic traffic advisory systems for pilots operating

under the see-and-avoid concept. (A-10-126)

Develop standards for helicopter cockpit electronic traffic

advisory systems that (1) address, among other flight

characteristics, the capability of helicopters to hover and

to fly near other aircraft at lower altitudes, slower

airspeeds, and different attitudes than fixed-wing

airplanes; (2) reduce nuisance alerts when nearby aircraft

enter the systems, alerting envelope; and (3) consider the

different types of operations conducted by helicopters,

including those in congested airspace. (A-10-127)

(Supersedes Safety Recommendation A-09-04 and is classified

“Open-Unacceptable Response”)

Once standards for helicopter electronic traffic advisory

systems are developed, as requested in Safety Recommendation

A-10-127, require electronic news gathering operators, air

tour operators, and other operators of helicopters used for

passenger revenue flight to install this equipment on their

aircraft. (A-10-128) (Supersedes Safety Recommendation A-09-

05)

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http://www.ntsb.gov/recs/letters/2010/A-10-124-128.pdf

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The complete recommendation letter is available on the Web

at the URL indicated above.

The letter is in the Portable Document Format (PDF) and can

be read using the Acrobat Reader 5.0 or later from Adobe

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An archive of recommendation letters is available at

http://www.ntsb.gov/recs/letters/letters.htm.

Electronic versions of letters may or may not include

enclosures; however, related publications, accident

briefs, and aviation accident synopses may be found

on the NTSB website.

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