Narrative:

We were departing hagerstown en route to pit. Our initial clearance was 4000 ft, expecting 16000 ft after 10 mins. On the few occasions I had flown this route, a clearance to 8000 or higher was the norm after radar contact. At 1500 AGL, I called for climb power and climb checks. I initiated the power change, the captain completed it and started the climb checks (9 items) he interrupted it to contact center. I thought center then cleared up to 8000 ft. He resumed the checklist. We make 1000 and 500 ft calls prior to reaching altitude. In this case none were made. Climbing through 4300 ft I looked at the ADF (which we use to hold the altitude number to which we are cleared). It said 4000 ft. I stopped the climb (at 4500 ft) and descended immediately to 4000 ft. The controller asked us to verify our initial altitude. We did and he then cleared us up to 8000 ft.

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Original NASA ASRS Text

Title: FLC OF A LTT OVERSHOT INITIAL CLB ASSIGNED ALT DUE TO LACK OF FLC COORD.

Narrative: WE WERE DEPARTING HAGERSTOWN ENRTE TO PIT. OUR INITIAL CLRNC WAS 4000 FT, EXPECTING 16000 FT AFTER 10 MINS. ON THE FEW OCCASIONS I HAD FLOWN THIS RTE, A CLRNC TO 8000 OR HIGHER WAS THE NORM AFTER RADAR CONTACT. AT 1500 AGL, I CALLED FOR CLB PWR AND CLB CHKS. I INITIATED THE PWR CHANGE, THE CAPT COMPLETED IT AND STARTED THE CLB CHKS (9 ITEMS) HE INTERRUPTED IT TO CONTACT CTR. I THOUGHT CTR THEN CLRED UP TO 8000 FT. HE RESUMED THE CHKLIST. WE MAKE 1000 AND 500 FT CALLS PRIOR TO REACHING ALT. IN THIS CASE NONE WERE MADE. CLBING THROUGH 4300 FT I LOOKED AT THE ADF (WHICH WE USE TO HOLD THE ALT NUMBER TO WHICH WE ARE CLRED). IT SAID 4000 FT. I STOPPED THE CLB (AT 4500 FT) AND DSNDED IMMEDIATELY TO 4000 FT. THE CTLR ASKED US TO VERIFY OUR INITIAL ALT. WE DID AND HE THEN CLRED US UP TO 8000 FT.

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.