Having just watched the whole press conference hosted by the Board this evening, in my opinion the main items are already posted by Justme69:
-By their regulations, they are required to present a preliminary, factual report (no conclusions or probable causes, just the facts stated), in aprox. 1 month. Actual investigation thought to last several months.
-It's confirmed that the voice recordings and the fly data have been extracted in the UK facility it was sent. They are now being enhanced (voice clarity, etc), recovered & verified.
-He hasn't witness the airport video footage of the accident, but it is part of the investigation and others have seen it.
-Based on marks on the ground, it seems that the airplane first hit the ground outside of the landing strip, on the service route just adjacent to it, touching the ground first with the tail, tail cone coming off.
-Plane kept tumbling ahead for 1200m, bouncing 3 times (matching unlevel terrain marks).
The data I will now add is a very summarized account of the 73 mins press conference.
The conference was chaired by the President of the Board (Pablo Palomar) and presented by the Secretary (Francisco Javier Soto, investigation director for JK 5022) and structured in six sections:
1-GENERAL CONSIDERATIONS
2-FIRST ACTIONS
3-BOARD STRUCTURING
4-BOARD ACTIONS TO DATE
5-PLANNED ACTIONS
6-QUESTIONS
1-GENERAL CONSIDERATIONS
The usual ones about only preliminary factual data available now and no speculation.
Fully independent though government board.
Request for help from media and all citizens with relevant data
2-1st ACTIONS
The board was called upon by the airport upon activation of the Emergency PLan within minutes of the event.
Two hours later, six members of the Board were on site, split between ATC/airport and crash site.
Access to crash site was somehow limited due to firefighting and rescue going on.
FDR was recovered by Board investigator. CVR was delivered to investigator by Judiciary Police [looks like full collaboration for once! [see Concorde, hampering of investigation by french judge as reported by UK AAIB]
3-BOARD STRUCTURING
US NTSB was notified immediately. UK AAIB and other offered immediate support.
NTSB sent 9 people to the field next day (4 NTSB +5 Boeing&Pratt&Whitney)
Three field teams:
-Airworthiness, systems and structures
-Powerplant
-Survivability
Four additional teams:
- ATC+Airport
-OPS
-Maintenance
-Voice/Data recorders
4-BOARD ACTIONS TO DATE
-Collect, recover, classify and preserve all evidences
-Collaboration with judiciary authorities
-Aerial photogrametry perfomed by Spanish AF
-Engines, T/R's and APU recovered in reasonable state of integrity
-Some avionics boxes with NVM's (non-volatile memories) recovered
-Found significant deterioration of some evidences due to rescue and firefighting. Sr Soto said this is reasonable and unavoidable, as preservation of life is prioritized over preservation of evidence.
-Found no marks or remains on runway. Only to the RH side of the runway [see posted photo of gnd tracks]. 1200m since start of marks until final crash site, marks stopping three times matching unevenness in terrain.
-First ground contact outside runway was with tail area, then main gear. Tailcone apparently detached upon first contact. [upon further interrogation, the Board referred to the tailcone as the whole area of the fuselage aft of the rear pressure bulkhead, which is likely incorrect]
-Witnesses interviews and data recovered:
Mechanic
Airline
ATC/Airport
Survivors
Other
-Damaged recorders sent Friday 23rd to UK AAIB. Integrity of data reasonable. Of the four CVR channels, some better than others, downloaded Friday. FDR downloaded over weekend, data sent to Boeing, NTSB and Board
-Additional actions connected to:
ATC
Videos
Pictures
Gnd surveillance Radar
Weather
Judiciary Police
5-PLANNED ACTIONS
-Gathering of evidences
-Detailed inspection
-Prelim factual report in one month, only for confirmed evidences
-Analysis
-Final report incl conclusions as to probable causes and recomendations
[no mention was made of other interim reports]
6-QUESTIONS
All of the (expectedly numerous) Q's for conclusions remained (expectedly) unanswered.
The information from those that were answered is basically:
-No evidence yet supporting actual aircraft max flight altitude
-Airport video is from operational support camera, only qualitatively useful
-The judge will be informed of board's progress
-GND surveillance radar expected to be useful in determining precise trajectory
-T/R's recovered and preserved
-Terrain unevenness significantly increased aircraft damage
-Documents being recovered from operator as well as from the crash site
Sorry for the long account. I hope it helps