Captain of a B737-200 overshot descent altitude during a STAR arrival resulting in a TCASII RA which helped alert the captain to his mistake and he climbed back to assigned altitude.

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Attributes
ACN	369180
Time
Date	199705
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : ard airport : lga
State Reference	PA
Altitude	msl bound lower : 10600 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : ord
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	arrival other arrival star : star enroute : on vectors enroute airway : n90
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 5700 flight time type : 2030
ASRS Report	369180
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot conflict : airborne less severe non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Miss Distance	horizontal : 36000 vertical : 600
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On minks one arrival to lga, received numerous vectors off course for spacing. Cleared to descend to 11000 ft. Captain flying, autoplt off, went to 10600 ft prior to returning to 11000 ft. TCASII RA received during event. Controller was extremely busy. First officer just returned to 'loop' after listening to ATIS report. (ATIS report was very lengthy.)

Original NASA ASRS Text

Title: CAPT OF A B737-200 OVERSHOT DSCNT ALT DURING A STAR ARR RESULTING IN A TCASII RA WHICH HELPED ALERT THE CAPT TO HIS MISTAKE AND HE CLBED BACK TO ASSIGNED ALT.

Narrative: ON MINKS ONE ARR TO LGA, RECEIVED NUMEROUS VECTORS OFF COURSE FOR SPACING. CLRED TO DSND TO 11000 FT. CAPT FLYING, AUTOPLT OFF, WENT TO 10600 FT PRIOR TO RETURNING TO 11000 FT. TCASII RA RECEIVED DURING EVENT. CTLR WAS EXTREMELY BUSY. FO JUST RETURNED TO 'LOOP' AFTER LISTENING TO ATIS RPT. (ATIS RPT WAS VERY LENGTHY.)

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.