The electronic properties of highly correlated materials are often governed by electron-phonon (e-ph) coupling and correlation effects leading to phenomena like charge density wave formation or superconductivity. As the dynamics of the underlying elementary processes occur on ultrafast timescales, femtosecond time-resolved spectroscopy can provide complementary and new information on these elementary processes and the coupling between various degrees freedom. The new FeAs based class of high-Tc superconductors (SC) exhibit a complex interplay between electronic, magnetic, and lattice degrees of freedom Spin fluctuations related to Fermi surface nesting have been considered as one origin for Cooper pair formation]. Another possible pairing mechanism is e-ph interaction, which is, however, predicted to be weak according to DFT calculations. Here we use femtosecond time- and angle-resolved photoemission spectroscopy (trARPES) to investigate the electron dynamics and e-ph coupling in the semimetallic ground state of iron pnictides. In these experiments the samples are cleaved in ultra-high-vacuum to obtain an atomically well defined surface and are excited by 1.5 eV, 50 fs pump pulses at cryogenic temperatures. The temporal evolution of the electronic spectral function after photoexcitation is probed by time-delayed 6 eV, 80 fs pulses giving rise to a photoemission spectrum originating from both occupied and transiently populated electronic states above the Fermi level. Angular resolution of the photoelectrons provides access to the electron momentum parallel to the surface..