An aircraft in an emergency condition came close to another in the holding pattern.

Attributes
ACN	149064
Time
Date	199006
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bwi
State Reference	MD
Altitude	msl bound lower : 5000 msl bound upper : 5000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bwi
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	cruise other landing other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 4 controller radar : 6
ASRS Report	149064
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

During an emergency at bwi, medium large transport lost sep with an light transport. The light transport was on an emergency clearance with smoke in the cockpit. The medium large transport was holding on the bwi 300 degree right at 15 DME fix. The emergency aircraft was expected to fly the final to runway 10. Instead he turned nwbnd to deviate around WX. Light transport was at 5000' when he turned into medium large transport holding at 5000'. Medium large transport was issued an immediate climb clearance 3 times prior to any action.

Original NASA ASRS Text

Title: AN ACFT IN AN EMERGENCY CONDITION CAME CLOSE TO ANOTHER IN THE HOLDING PATTERN.

Narrative: DURING AN EMER AT BWI, MLG LOST SEP WITH AN LTT. THE LTT WAS ON AN EMER CLRNC WITH SMOKE IN THE COCKPIT. THE MLG WAS HOLDING ON THE BWI 300 DEG R AT 15 DME FIX. THE EMER ACFT WAS EXPECTED TO FLY THE FINAL TO RWY 10. INSTEAD HE TURNED NWBND TO DEVIATE AROUND WX. LTT WAS AT 5000' WHEN HE TURNED INTO MLG HOLDING AT 5000'. MLG WAS ISSUED AN IMMEDIATE CLB CLRNC 3 TIMES PRIOR TO ANY ACTION.

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.