Altitude deviation. Overshoot in descent. Loss of separation.

Attributes
ACN	133230
Time
Date	199001
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : brv
State Reference	VA
Altitude	msl bound lower : 6500 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : iad
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain instruction : instructor oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 14300 flight time type : 8000
ASRS Report	133230
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer instruction : trainee
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot conflict : airborne less severe non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Miss Distance	horizontal : 15000 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Captain was giving first officer initial line experience. Both captain and first officer heard a clearance to 6000'. Set 6000' in altitude alert. We noticed another aircraft ahead of us. Captain asked approach what the distance and altitude of traffic was. When told he was at 6000', 2 1/2 mi ahead, we stopped descent (at approximately 6500'). We were told to climb to 7000'. We did. Due to extremely high workload (iad was CAT ii, ATIS was OTS and first officer was receiving initial operating experience) it is possible we were cleared to 7000'. Traffic was in sight at all times.

Original NASA ASRS Text

Title: ALT DEVIATION. OVERSHOOT IN DESCENT. LOSS OF SEPARATION.

Narrative: CAPT WAS GIVING F/O INITIAL LINE EXPERIENCE. BOTH CAPT AND F/O HEARD A CLRNC TO 6000'. SET 6000' IN ALT ALERT. WE NOTICED ANOTHER ACFT AHEAD OF US. CAPT ASKED APCH WHAT THE DISTANCE AND ALT OF TFC WAS. WHEN TOLD HE WAS AT 6000', 2 1/2 MI AHEAD, WE STOPPED DSCNT (AT APPROX 6500'). WE WERE TOLD TO CLB TO 7000'. WE DID. DUE TO EXTREMELY HIGH WORKLOAD (IAD WAS CAT II, ATIS WAS OTS AND F/O WAS RECEIVING INITIAL OPERATING EXPERIENCE) IT IS POSSIBLE WE WERE CLRED TO 7000'. TFC WAS IN SIGHT AT ALL TIMES.

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.