Aircraft Y, departure off agc, climbed through assigned altitude and conflicted with aircraft X inbo...

Attributes
ACN	406708
Time
Date	199806
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : agc airport : pit
State Reference	PA
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : pit
Operator	common carrier : air carrier
Make Model Name	Jetstream 31
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Bonanza 33
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 10
ASRS Report	406708
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller radar : 12 flight time total : 75
ASRS Report	406707
Events
Anomaly	altitude deviation : overshoot conflict : airborne less severe non adherence : clearance non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified other controllera other flight crewa
Resolutory Action	controller : issued new clearance none taken : unable other
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Aircraft #1 vectored for runway 28C approach to pit. Level at 4000 ft on 020 degree heading. Aircraft #2 departed agc airport eastbound at 3000 ft. Aircraft #1 on my frequency, aircraft #2 on departure south frequency. Aircraft #2 started to climb to 3200 ft. I issued traffic, called departure south saying something like 'check aircraft #2 altitude, he should be at 3000 ft.' then issued climb immediate to 5000 ft instructions to aircraft #1 and reissued traffic. Aircraft #2 was indicating 3300 ft or 3400 ft at that point, but climbed to 3500 ft before descending back to 3000 ft.

Original NASA ASRS Text

Title: ACFT Y, DEP OFF AGC, CLBED THROUGH ASSIGNED ALT AND CONFLICTED WITH ACFT X INBOUND TO PIT.

Narrative: ACFT #1 VECTORED FOR RWY 28C APCH TO PIT. LEVEL AT 4000 FT ON 020 DEG HDG. ACFT #2 DEPARTED AGC ARPT EBOUND AT 3000 FT. ACFT #1 ON MY FREQ, ACFT #2 ON DEP S FREQ. ACFT #2 STARTED TO CLB TO 3200 FT. I ISSUED TFC, CALLED DEP S SAYING SOMETHING LIKE 'CHK ACFT #2 ALT, HE SHOULD BE AT 3000 FT.' THEN ISSUED CLB IMMEDIATE TO 5000 FT INSTRUCTIONS TO ACFT #1 AND REISSUED TFC. ACFT #2 WAS INDICATING 3300 FT OR 3400 FT AT THAT POINT, BUT CLBED TO 3500 FT BEFORE DSNDING BACK TO 3000 FT.

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.

Aircraft Y, departure off agc, climbed through assigned altitude and conflicted with aircraft X inbound to pit.