Commuter flight crew exceeds assigned altitude on climb.

Attributes
ACN	273376
Time
Date	199406
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bos
State Reference	MA
Altitude	msl bound lower : 10000 msl bound upper : 10300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bos tower : laf
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
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 : 150 flight time total : 4500 flight time type : 2500
ASRS Report	273376
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 5400 flight time type : 2600
ASRS Report	273367
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

During climb out, discussion of possible WX encounter ahead and changing altitude to 12 or 14000 ft resulted in a climb through the assigned altitude of 10000 ft. A recovery was completed without exceeding 10300 ft. There was no query from ATC and flight was continued. Prior to this, flight crew duty was 35 hours in the previous 58 hours. Flight time for the period was 13 1/10 hours. 5 hours of duty and 4 hours of flight still remained on the day of the incident. Supplemental information from acn 273367: I believe the extreme amount of duty time in 3 days played a large role in the altitude deviation.

Original NASA ASRS Text

Title: COMMUTER FLC EXCEEDS ASSIGNED ALT ON CLB.

Narrative: DURING CLBOUT, DISCUSSION OF POSSIBLE WX ENCOUNTER AHEAD AND CHANGING ALT TO 12 OR 14000 FT RESULTED IN A CLB THROUGH THE ASSIGNED ALT OF 10000 FT. A RECOVERY WAS COMPLETED WITHOUT EXCEEDING 10300 FT. THERE WAS NO QUERY FROM ATC AND FLT WAS CONTINUED. PRIOR TO THIS, FLC DUTY WAS 35 HRS IN THE PREVIOUS 58 HRS. FLT TIME FOR THE PERIOD WAS 13 1/10 HRS. 5 HRS OF DUTY AND 4 HRS OF FLT STILL REMAINED ON THE DAY OF THE INCIDENT. SUPPLEMENTAL INFO FROM ACN 273367: I BELIEVE THE EXTREME AMOUNT OF DUTY TIME IN 3 DAYS PLAYED A LARGE ROLE IN THE ALTDEV.

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.