First officer, PF, fails to activate altitude change on his FMC after an amended clearance altitude change was issued twice by ATC. Non adherence to ATC clearance procedure.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	356610
Time
Date	199612
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : zla
State Reference	CA
Altitude	msl bound lower : 33000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zla
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 8000 flight time type : 3800
ASRS Report	356610
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : undershoot non adherence : published procedure non adherence : far non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : became reoriented other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was flying, the captain was working the radios. He left the frequency to get ATIS and prepare landing data. The ZLA controller issued a descent to FL330 and I acknowledged. I dialed FL330 ft into the MCP and was preparing to update the FMC when the same controller issued the clearance. Again, I acknowledged the descent again. At the same moment the captain came back on the frequency and briefed me on the WX at lax and the arrival. Then the controller came on the frequency and issued descent clearance to FL240. That is when I noticed we were still at FL350.

Original NASA ASRS Text

Title: FO, PF, FAILS TO ACTIVATE ALT CHANGE ON HIS FMC AFTER AN AMENDED CLRNC ALT CHANGE WAS ISSUED TWICE BY ATC. NON ADHERENCE TO ATC CLRNC PROC.

Narrative: I WAS FLYING, THE CAPT WAS WORKING THE RADIOS. HE LEFT THE FREQ TO GET ATIS AND PREPARE LNDG DATA. THE ZLA CTLR ISSUED A DSCNT TO FL330 AND I ACKNOWLEDGED. I DIALED FL330 FT INTO THE MCP AND WAS PREPARING TO UPDATE THE FMC WHEN THE SAME CTLR ISSUED THE CLRNC. AGAIN, I ACKNOWLEDGED THE DSCNT AGAIN. AT THE SAME MOMENT THE CAPT CAME BACK ON THE FREQ AND BRIEFED ME ON THE WX AT LAX AND THE ARR. THEN THE CTLR CAME ON THE FREQ AND ISSUED DSCNT CLRNC TO FL240. THAT IS WHEN I NOTICED WE WERE STILL AT FL350.

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.