Air carrier medium large transport flight crew fail to execute an altitude crossing restr. Their autothrottle system was inoperative. The first officer, PF, received descent clearance while the PIC was telling company about it, failing to set the altitude in the altitude system and failing to advise PIC. Controller assisted with vectors.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	368610
Time
Date	199705
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : sea
State Reference	WA
Altitude	msl bound lower : 12000 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zse
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 10000 flight time type : 2000
ASRS Report	368610
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 225 flight time total : 10000 flight time type : 5000
ASRS Report	368728
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

While talking to company about arrival and mechanical problem with autothrottles, first officer (who was flying) received clearance to cross diggin at 12000 ft. First officer failed to set 12000 ft in altitude system, or inform me of clearance when I came back from company radio. With autothrottles broken, FMS performance was off, so system did not advise for descent. Center asked us about our descent at the same time we had started down. Asked for a turn in holding for altitude loss, was given heading vectors instead.

Original NASA ASRS Text

Title: ACR MLG FLC FAIL TO EXECUTE AN ALT XING RESTR. THEIR AUTOTHROTTLE SYS WAS INOP. THE FO, PF, RECEIVED DSCNT CLRNC WHILE THE PIC WAS TELLING COMPANY ABOUT IT, FAILING TO SET THE ALT IN THE ALT SYS AND FAILING TO ADVISE PIC. CTLR ASSISTED WITH VECTORS.

Narrative: WHILE TALKING TO COMPANY ABOUT ARR AND MECHANICAL PROB WITH AUTOTHROTTLES, FO (WHO WAS FLYING) RECEIVED CLRNC TO CROSS DIGGIN AT 12000 FT. FO FAILED TO SET 12000 FT IN ALT SYS, OR INFORM ME OF CLRNC WHEN I CAME BACK FROM COMPANY RADIO. WITH AUTOTHROTTLES BROKEN, FMS PERFORMANCE WAS OFF, SO SYS DID NOT ADVISE FOR DSCNT. CTR ASKED US ABOUT OUR DSCNT AT THE SAME TIME WE HAD STARTED DOWN. ASKED FOR A TURN IN HOLDING FOR ALT LOSS, WAS GIVEN HDG VECTORS INSTEAD.

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.