A B757 flight crew failed to maintain assigned altitude on departure from lga.

Attributes
ACN	436500
Time
Date	199905
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lga.airport
State Reference	NJ
Altitude	msl single value : 9000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 5500 flight time type : 1400
ASRS Report	436500
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : commercial
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : returned to assigned airspace
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flight departed lga with original clearance to 5000 ft. During climb out, departure reclred flight to a higher altitude and new heading. Captain read back new altitude of 14000 ft. No response was made by ATC. Passing 9000 ft, ATC questioned flight as to the altitude they were climbing to. Captain answered '14000 ft assigned.' ATC responded by telling flight to level at present altitude. Leveled at approximately 9300 ft and returned to 9000 ft. ATC then reclred to 10000 ft and new frequency. Nothing was mentioned by the controller about any possible conflict or the possible deviation. This flight was the last leg on the last day of a 4 day trip. Day 4 was particularly tiring and long. This was 11 hours 26 mins after an early sign-in.

Original NASA ASRS Text

Title: A B757 FLC FAILED TO MAINTAIN ASSIGNED ALT ON DEP FROM LGA.

Narrative: FLT DEPARTED LGA WITH ORIGINAL CLRNC TO 5000 FT. DURING CLBOUT, DEP RECLRED FLT TO A HIGHER ALT AND NEW HDG. CAPT READ BACK NEW ALT OF 14000 FT. NO RESPONSE WAS MADE BY ATC. PASSING 9000 FT, ATC QUESTIONED FLT AS TO THE ALT THEY WERE CLBING TO. CAPT ANSWERED '14000 FT ASSIGNED.' ATC RESPONDED BY TELLING FLT TO LEVEL AT PRESENT ALT. LEVELED AT APPROX 9300 FT AND RETURNED TO 9000 FT. ATC THEN RECLRED TO 10000 FT AND NEW FREQ. NOTHING WAS MENTIONED BY THE CTLR ABOUT ANY POSSIBLE CONFLICT OR THE POSSIBLE DEV. THIS FLT WAS THE LAST LEG ON THE LAST DAY OF A 4 DAY TRIP. DAY 4 WAS PARTICULARLY TIRING AND LONG. THIS WAS 11 HRS 26 MINS AFTER AN EARLY SIGN-IN.

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.