Altitude overshot by first officer of a B767ER during an arrival descent due misunderstanding of clearance and the controller not hearing readback error by first officer.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	497300
Time
Date	200101
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : eno.vortac
State Reference	DE
Altitude	msl bound lower : 18000 msl bound upper : 19000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	B767-200
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : intermediate altitude
Route In Use	arrival star : robinsville one
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 180 flight time total : 18000 flight time type : 500
ASRS Report	497300
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : altimeter other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

First officer was flying and talking to ZDC, and I was off frequency obtaining gate information from company. He had accepted, read back, and descended to FL180. When I came back on frequency, center asked us to verify level at FL190. I told them we were level at FL180, and asked if we should climb. Controller said no, and cleared us lower. First officer said that he was sure that he heard and read back FL180 in the original clearance when I was off frequency. Nothing else was said about it from ATC.

Original NASA ASRS Text

Title: ALT OVERSHOT BY FO OF A B767ER DURING AN ARR DSCNT DUE MISUNDERSTANDING OF CLRNC AND THE CTLR NOT HEARING READBACK ERROR BY FO.

Narrative: FO WAS FLYING AND TALKING TO ZDC, AND I WAS OFF FREQ OBTAINING GATE INFO FROM COMPANY. HE HAD ACCEPTED, READ BACK, AND DSNDED TO FL180. WHEN I CAME BACK ON FREQ, CTR ASKED US TO VERIFY LEVEL AT FL190. I TOLD THEM WE WERE LEVEL AT FL180, AND ASKED IF WE SHOULD CLB. CTLR SAID NO, AND CLRED US LOWER. FO SAID THAT HE WAS SURE THAT HE HEARD AND READ BACK FL180 IN THE ORIGINAL CLRNC WHEN I WAS OFF FREQ. NOTHING ELSE WAS SAID ABOUT IT FROM ATC.

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.