ZDC controller transposes flight plans and descends HS25 into climbing MD82.

Attributes
ACN	505359
Time
Date	200103
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : gve.vor
State Reference	VA
Altitude	msl bound lower : 31600 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	MD-81
Operating Under FAR Part	Part 121
Flight Phase	cruise : enroute altitude change cruise : level
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zdc.artcc
Operator	general aviation : corporate
Make Model Name	Harrier
Operating Under FAR Part	Part 91
Flight Phase	cruise : enroute altitude change
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar pilot : private
Experience	controller radar : 10 flight time total : 56
ASRS Report	505359
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment : conflict alert atc equipment other atc equipment : radar other other : conflict alert
Resolutory Action	controller : issued new clearance
Consequence	faa : investigated
Miss Distance	horizontal : 24300 vertical : 1400
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Turned air carrier X 15 degrees left climbed to FL330. Had a 5 mi halo on air carrier X. Aircraft Y was at FL330, off left side 4 mi. I had a brain lapse and thought aircraft Y was at FL350. My initial plan was to turn air carrier X and climb to FL330 when aircraft Y was at FL350, but R12 had traffic for aircraft Y, so I descended him to FL330. I failed to scan once more before issuing climb to FL330.

Original NASA ASRS Text

Title: ZDC CTLR TRANSPOSES FLT PLANS AND DSNDS HS25 INTO CLBING MD82.

Narrative: TURNED ACR X 15 DEGS L CLBED TO FL330. HAD A 5 MI HALO ON ACR X. ACFT Y WAS AT FL330, OFF L SIDE 4 MI. I HAD A BRAIN LAPSE AND THOUGHT ACFT Y WAS AT FL350. MY INITIAL PLAN WAS TO TURN ACR X AND CLB TO FL330 WHEN ACFT Y WAS AT FL350, BUT R12 HAD TFC FOR ACFT Y, SO I DSNDED HIM TO FL330. I FAILED TO SCAN ONCE MORE BEFORE ISSUING CLB TO FL330.

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.