<< >> NASA ASRS Report 458240, December 1999

Flight crew of an MD90 missed frequency change during cruise resulting in delay in arrival descent clearance. After contact with ATC was re-established, the ARTCC controller issued descent arrival vectors.

Attributes
ACN	458240
Time
Date	199912
Day	Sun
Local Time Of Day	0001 To 0600
Place
State Reference	CA
Altitude	msl single value : 39000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa.artcc
Operator	common carrier : air carrier
Make Model Name	MD-90 Series (DC-9-90) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	458240
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
ASRS Report	458239
Events
Anomaly	non adherence : clearance other anomaly other
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	other
Consequence	Other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Location: sns VOR. We were cruising at altitude and missed a frequency change to ZOA and by the time we were able to contact them we were about 30 mi away from sfo airport. We were vectored around and descended per ATC instructions and landed at sfo without further incident. ZOA contacted ftw dispatch, who then contacted sfo operations to relay the frequency to us, but we never got it. Dispatch did not try to have SELCAL contact us and the MD90 has no ACARS. It seems that SELCAL would be the most effective manner. We attempted to contact bay approach on frequency 134.5 but to no avail.

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Original NASA ASRS Text

Title: FLC OF AN MD90 MISSED FREQ CHANGE DURING CRUISE RESULTING IN DELAY IN ARR DSCNT CLRNC. AFTER CONTACT WITH ATC WAS RE-ESTABLISHED, THE ARTCC CTLR ISSUED DSCNT ARR VECTORS.

Narrative: LOCATION: SNS VOR. WE WERE CRUISING AT ALT AND MISSED A FREQ CHANGE TO ZOA AND BY THE TIME WE WERE ABLE TO CONTACT THEM WE WERE ABOUT 30 MI AWAY FROM SFO ARPT. WE WERE VECTORED AROUND AND DSNDED PER ATC INSTRUCTIONS AND LANDED AT SFO WITHOUT FURTHER INCIDENT. ZOA CONTACTED FTW DISPATCH, WHO THEN CONTACTED SFO OPS TO RELAY THE FREQ TO US, BUT WE NEVER GOT IT. DISPATCH DID NOT TRY TO HAVE SELCAL CONTACT US AND THE MD90 HAS NO ACARS. IT SEEMS THAT SELCAL WOULD BE THE MOST EFFECTIVE MANNER. WE ATTEMPTED TO CONTACT BAY APCH ON FREQ 134.5 BUT TO NO AVAIL.

Data retrieved from NASA's ASRS site as of July 2007 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.