The official spoke on condition of anonymity because Boeing's conversations with airline officials were not meant to be made public. "We will not rest until we are given the real body or body parts of our loved ones".
The person said that under the victim´s Jewish faith, no funeral could be held until his remains were returned, and the six-month delay was stressing the victim´s family. However, authorities say they will issue death certificates within two weeks. The victims came from 35 nations.
American Airlines representatives say that no work is planned for these aircrafts.
"Preparation for the identification process has already started and we will make sure that the post mortem investigation will start as soon as possible", she said.
Boeing executives and technical experts briefed pilots at US airlines that fly the Max in November about the plane, less than a month after the Lion Air crash.
The investigations into both 737 Max crashes are underway, and expected to focus on the automated controls.
The civil aviation safety agency noted that the work on the flight data recorder would resume the following day.
The recorders, also known as black boxes, were sent to France because the BEA has extensive expertise in analyzing such devices.
Air Canada announced on Friday that it would suspend its financial guidance for the first quarter and full year of 2019 due to uncertainty caused by the suspension of Max 8 flights and Boeing's recent decision to pause deliveries to airline customers. Acting Federal Aviation Administration (FAA) administrator Daniel Elwell has said he does not know how long the U.S. grounding will last. The pilot of that plane reported control problems. On Wednesday, the Federal Aviation Administration ordered all Boeing 737 Max planes used by USA carriers grounded until safety concerns are addressed.
Montreal-based Air Canada has said it operated 75 737 MAX flights daily out of a total schedule of approximately 1,600 daily flights system-wide.
Investigators looking into the Indonesian crash are examining whether the software automatically pushed the plane's nose down repeatedly, and whether the Lion Air pilots knew how to solve that problem.
Engineers had to find out what the system was doing on the Lion Air flight, how the system's commands appeared to pilots, what changes needed to be made to software, manuals and training, and the best way to make those changes.