Ground employee reported detecting hazmat cargo incorrectly loaded after aircraft departure.

Attributes
ACN	1634204
Time
Date	201904
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B737-900
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Person 1
Function	Other / Unknown
Events
Anomaly	Deviation - Procedural Weight And Balance Deviation - Procedural Published Material / Policy Deviation - Procedural Hazardous Material Violation

Narrative:

During shift change I was reviewing loading on [electronic load plan for the] flight and noticed that there was hazmat in pit 2; with no bags. The flight had been off the gate for 12 minutes. I looked at the flight history to see when he was planned for takeoff; and it was at xa:20 local; which was the time I was looking at the flight; so I could not bring the airplane back. Shift manager was notified. I also contacted [load] controller in ZZZ.

Original NASA ASRS Text

Title: Ground employee reported detecting Hazmat cargo incorrectly loaded after aircraft departure.

Narrative: During shift change I was reviewing loading on [electronic load plan for the] flight and noticed that there was Hazmat in Pit 2; with no bags. The flight had been off the gate for 12 minutes. I looked at the flight history to see when he was planned for takeoff; and it was at XA:20 local; which was the time I was looking at the flight; so I could not bring the airplane back. Shift Manager was notified. I also contacted [Load] Controller in ZZZ.

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.