Military aircraft climbed through an occupied altitude resulting in a near midair collision.

Attributes
ACN	124539
Time
Date	198910
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bpa
State Reference	NY
Altitude	msl bound lower : 5000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	other
Make Model Name	Experimental
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : sid
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : handoff position
Qualification	controller : developmental
ASRS Report	124539
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	conflict : nmac non adherence : required legal separation non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	faa : investigated
Miss Distance	horizontal : 0 vertical : 100
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft off of bpa climbed through overflt at 6000'. Callback conversation with reporter revealed the following: the reporter was training on the handoff position and is a deviation. She has been at the facility for approximately 7 months. The military aircraft departure on a SID was originally assigned 3000', then cleared to 5000'. The radar controller heard another controller mention 9000', and thought it was coordinated for his aircraft to climb. He issued the climb and immediately lost sep with an IFR overflt at 6000'. Since the reporter was in a training status, she was not involved in the incident. The facility filed an operational error. She does not recall conflict alert going off.

Original NASA ASRS Text

Title: MIL ACFT CLIMBED THROUGH AN OCCUPIED ALT RESULTING IN A NMAC.

Narrative: ACFT OFF OF BPA CLBED THROUGH OVERFLT AT 6000'. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: THE RPTR WAS TRNING ON THE HDOF POS AND IS A DEV. SHE HAS BEEN AT THE FAC FOR APPROX 7 MONTHS. THE MIL ACFT DEP ON A SID WAS ORIGINALLY ASSIGNED 3000', THEN CLRED TO 5000'. THE RADAR CTLR HEARD ANOTHER CTLR MENTION 9000', AND THOUGHT IT WAS COORDINATED FOR HIS ACFT TO CLB. HE ISSUED THE CLB AND IMMEDIATELY LOST SEP WITH AN IFR OVERFLT AT 6000'. SINCE THE RPTR WAS IN A TRNING STATUS, SHE WAS NOT INVOLVED IN THE INCIDENT. THE FAC FILED AN OPERROR. SHE DOES NOT RECALL CONFLICT ALERT GOING OFF.

Data retrieved from NASA's ASRS site as of August 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.