Sa-227 crew had an altitude overshoot in pit class east airspace.

Attributes
ACN	511620
Time
Date	200105
Day	Tue
Place
Locale Reference	airport : pit.airport
State Reference	PA
Altitude	msl bound lower : 8500 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	SA-227 AC Metro III
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : pit.tracon
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 90 flight time total : 8300 flight time type : 3600
ASRS Report	511620
Events
Anomaly	altitude deviation : overshoot conflict : airborne critical non adherence : clearance non adherence : company policies non adherence : far
Resolutory Action	controller : issued alert flight crew : returned to assigned altitude other
Miss Distance	vertical : 600
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

During descent from 13000 ft to 9000 ft, copilot flying, captain was arranging chart folder. Captain looked up and saw altimeter 8500 ft and vsi descending. Captain took control and climbed to 9000 ft. The altitude alert rang with '1000 ft to go' but I never heard another alert, which I would expect with 300 ft deviation. The controller saw the deviation at the same time, and gave a traffic call of a commuter at 8000 ft. That was the first I heard of the traffic. It appeared on the TCASII, but no voice call. As the day went on, (we landed 15 mins after the incident) I realized that I was not as alert as usual. I attribute that to not having had a meal service.

Original NASA ASRS Text

Title: SA-227 CREW HAD AN ALT OVERSHOOT IN PIT CLASS E AIRSPACE.

Narrative: DURING DSCNT FROM 13000 FT TO 9000 FT, COPLT FLYING, CAPT WAS ARRANGING CHART FOLDER. CAPT LOOKED UP AND SAW ALTIMETER 8500 FT AND VSI DSNDING. CAPT TOOK CTL AND CLBED TO 9000 FT. THE ALT ALERT RANG WITH '1000 FT TO GO' BUT I NEVER HEARD ANOTHER ALERT, WHICH I WOULD EXPECT WITH 300 FT DEV. THE CTLR SAW THE DEV AT THE SAME TIME, AND GAVE A TFC CALL OF A COMMUTER AT 8000 FT. THAT WAS THE FIRST I HEARD OF THE TFC. IT APPEARED ON THE TCASII, BUT NO VOICE CALL. AS THE DAY WENT ON, (WE LANDED 15 MINS AFTER THE INCIDENT) I REALIZED THAT I WAS NOT AS ALERT AS USUAL. I ATTRIBUTE THAT TO NOT HAVING HAD A MEAL SVC.

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.