Jnu AFSS specialist expressed concern regarding tower failure to set ATIS and ASOS functionality all...

Attributes
ACN	796064
Time
Date	200807
Place
Locale Reference	atc facility : zan.artcc
State Reference	AK
Environment
Flight Conditions	Marginal
Aircraft 1
Flight Phase	cruise : level
Person 1
Affiliation	company other
Function	other personnel
Experience	flight time total : 300
ASRS Report	796064
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

Jnu ATCT did not switch the ASOS voice to the on position at tower closure. Jnu AFSS is unable to turn off the ATIS and turn on the jnu ASOS. The last ATIS WX and altitude setting will broadcast until jnu tower opens. I alerted zan; they advised traffic the recording was hours old and not current. It is very important that the pilot not reset their altimeter to the new altitude setting while on the approach into jnu. Jnu has an lda approach that is not aligned with the runway because of mountainous terrain. An altitude setting error could cause the pilot to impact the hillside; trees or other obstacles. The voice switch problem has happened several times in the past and needs to be addressed. Severity increases because of the active tfr off the end of the runway.

Original NASA ASRS Text

Title: JNU AFSS SPECIALIST EXPRESSED CONCERN REGARDING TWR FAILURE TO SET ATIS AND ASOS FUNCTIONALITY ALLOWING FOR CURRENT INFO AVAILABILITY TO THE USERS.

Narrative: JNU ATCT DID NOT SWITCH THE ASOS VOICE TO THE ON POS AT TWR CLOSURE. JNU AFSS IS UNABLE TO TURN OFF THE ATIS AND TURN ON THE JNU ASOS. THE LAST ATIS WX AND ALT SETTING WILL BROADCAST UNTIL JNU TWR OPENS. I ALERTED ZAN; THEY ADVISED TFC THE RECORDING WAS HRS OLD AND NOT CURRENT. IT IS VERY IMPORTANT THAT THE PLT NOT RESET THEIR ALTIMETER TO THE NEW ALT SETTING WHILE ON THE APCH INTO JNU. JNU HAS AN LDA APCH THAT IS NOT ALIGNED WITH THE RWY BECAUSE OF MOUNTAINOUS TERRAIN. AN ALT SETTING ERROR COULD CAUSE THE PLT TO IMPACT THE HILLSIDE; TREES OR OTHER OBSTACLES. THE VOICE SWITCH PROB HAS HAPPENED SEVERAL TIMES IN THE PAST AND NEEDS TO BE ADDRESSED. SEVERITY INCREASES BECAUSE OF THE ACTIVE TFR OFF THE END OF THE RWY.

Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Jnu AFSS specialist expressed concern regarding tower failure to set ATIS and ASOS functionality allowing for current information availability to the users.