An FAA BE30 and an MD88 perform evasive actions to avoid each other 10 NM northwest of mht, nh.

Attributes
ACN	511576
Time
Date	200105
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mht.airport
State Reference	NH
Altitude	msl single value : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mht.tracon
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : mht.tracon
Operator	other
Make Model Name	Super King Air 300
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 2800 flight time type : 100
ASRS Report	511576
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne critical non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory flight crew : took evasive action
Miss Distance	horizontal : 4500 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

On vectors for visual approach to runway 17 at mht, traffic called by approach. He appeared to be turning final. We were cleared for approach. I dispatched autoplt and started an immediate right turn to final. I lost sight of traffic in turn, captain kept him in sight. Captain said he was heading toward us and took control to avoid a conflict. We had to descend and increase bank angle. Traffic apparently saw us and took evasive action as well. I re-took control of aircraft on final and landed uneventfully. Supplemental information from acn 511908: while on a 10 DME arc at 2000 ft flight checking the con ILS, on west side, made right turn to rejoin arc to go eastbound. While in turn, observed air carrier X jet in a descending right turn to the south to land at mht. Made left turn (climbing) to avoid conflict.

Original NASA ASRS Text

Title: AN FAA BE30 AND AN MD88 PERFORM EVASIVE ACTIONS TO AVOID EACH OTHER 10 NM NW OF MHT, NH.

Narrative: ON VECTORS FOR VISUAL APCH TO RWY 17 AT MHT, TFC CALLED BY APCH. HE APPEARED TO BE TURNING FINAL. WE WERE CLRED FOR APCH. I DISPATCHED AUTOPLT AND STARTED AN IMMEDIATE R TURN TO FINAL. I LOST SIGHT OF TFC IN TURN, CAPT KEPT HIM IN SIGHT. CAPT SAID HE WAS HDG TOWARD US AND TOOK CTL TO AVOID A CONFLICT. WE HAD TO DSND AND INCREASE BANK ANGLE. TFC APPARENTLY SAW US AND TOOK EVASIVE ACTION AS WELL. I RE-TOOK CTL OF ACFT ON FINAL AND LANDED UNEVENTFULLY. SUPPLEMENTAL INFO FROM ACN 511908: WHILE ON A 10 DME ARC AT 2000 FT FLT CHKING THE CON ILS, ON W SIDE, MADE R TURN TO REJOIN ARC TO GO EBOUND. WHILE IN TURN, OBSERVED ACR X JET IN A DSNDING R TURN TO THE S TO LAND AT MHT. MADE L TURN (CLBING) TO AVOID CONFLICT.

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.