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Accident Report Detail

 
Safety Recommendation Report: Extended Duration Cockpit Voice Recorders

Executive Summary

​The National Transportation Safety Board (NTSB) is providing the following information to urge the Federal Aviation Administration (FAA) to take action on the safety recommendations issued in this report. These recommendations address the need to install cockpit voice recorders (CVR) with a minimum 25-hour recording capability on all newly manufactured airplanes required to have a CVR and retrofit these CVRs on existing aircraft required to have flight recorders. These recommendations are derived from the NTSB’s experiences with investigations that lacked access to relevant CVR data.


Probable Cause

​The NTSB concludes that despite current FAA regulations to require 2-hour CVR recording capability and guidance intended to operationally safeguard CVR data after an accident or incident, valuable CVR data continue to be overwritten and are unavailable for safety investigations. Therefore, the NTSB recommends that the FAA require that all newly manufactured airplanes that must have a CVR be fitted with a CVR capable of recording the last 25 hours of audio. The NTSB also recommends that the FAA require retrofit, by January 1, 2024, of all CVRs on all airplanes required to carry both a CVR and a flight data recorder with a CVR capable of recording the last 25 hours of audio. We recognize that the scope of these recommendations exceeds ICAO’s standard (which applies only to airplanes that weigh more than 27,000 kg engaged in commercial transport), but the risk of lost CVR data is equal in accidents and incidents involving airplanes with a maximum takeoff weight under 27,000 kg, which include many regional airplane models.

Therefore, the National Transportation Safety Board recommends that the Federal Aviation Administration:

Require all newly manufactured airplanes that must have a cockpit voice recorder (CVR) be fitted with a CVR capable of recording the last 25 hours of audio. (A-18-30)

By January 1, 2024, require retrofit of all cockpit voice recorders (CVR) on all airplanes required to carry both a CVR and a flight data recorder with a CVR capable of recording the last 25 hours of audio. (A-18-31)


Accident Location: Multiple , Multiple    
Accident Date:  
Accident ID: OPS18IA015, DCA18LA163, DCA17IA148, CEN14LA239, CEN13IA563, CEN12IA502, WPR12LA053, ENG11IA016, WPR11LA058, ENG11IA035, CEN10LA363, DCA10IA015, LAX07IA198, DEN06IA051, MIA04LA004, DCA02MA039, DCA02MA042, DCA17CA079, ENG16IA001, DCA12IA096, DCA11FA091

Date Adopted: 10/2/2018
NTSB Number: ASR1804
NTIS Number:  

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