Clt controller reported he missed a readback while issuing a clearance which caused a departing airc...

Attributes
ACN	1633336
Time
Date	201904
Local Time Of Day	1201-1800
Place
Locale Reference	CLT.Tower
State Reference	NC
Aircraft 1
Make Model Name	Small Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 91
Flight Phase	Climb Takeoff
Flight Plan	IFR
Person 1
Function	Departure
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 8.0
Events
Anomaly	ATC Issue All Types Deviation - Altitude Undershoot Deviation - Procedural Clearance Inflight Event / Encounter CFTT / CFIT

Narrative:

Aircraft X called clearance delivery while I was working and I issued 8;000 feet as the initial altitude. The pilot read back 2;000 feet and I did not catch the read back. Later in the shift; I was working the satellite position and noticed the departure controller issue a low altitude alert to the aircraft who I had earlier read the clearance (aircraft X). After checking the tapes; the aircraft read back 2;000 feet on the clearance read back and also checked in at 2;000 feet with departure. This was human error. I missed the read back. I have no recommendations.

Original NASA ASRS Text

Title: CLT Controller reported he missed a readback while issuing a clearance which caused a departing aircraft to level off below the Minimum Vectoring Altitude.

Narrative: Aircraft X called Clearance Delivery while I was working and I issued 8;000 feet as the initial altitude. The pilot read back 2;000 feet and I did not catch the read back. Later in the shift; I was working the satellite position and noticed the Departure Controller issue a low altitude alert to the aircraft who I had earlier read the clearance (Aircraft X). After checking the tapes; the aircraft read back 2;000 feet on the clearance read back and also checked in at 2;000 feet with Departure. This was human error. I missed the read back. I have no recommendations.

Data retrieved from NASA's ASRS site 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.

Clt controller reported he missed a readback while issuing a clearance which caused a departing aircraft to level off below the minimum vectoring altitude.