Maintenance Lapse Identified as Initial Problem Leading to Lion Air Crash - WSJ
 

A Wall Street Journal article with a report of faulty 'airspeed sensor' calibration.



https://www.wsj.com/articles/maintenance-lapse-identified-as-initial-problem-leading-to-lion-air-crash-11545739204

I thought it was an AoA vane (sensor), not pitot. Not that it matters much - bad data confuses "hidden" trim automation > results in strange aircraft behavior in supposedly manual flight > LOCA

Really?

What airspeed "sensor" requires "calibration" post fit?

Requires testing, yes.

This was already posted in Tech Log a few hours ago.

Find a WSJ reporter who understands what an AoA vane is.
I think you will find they meant that the AoA vane was incorrectly calibrated. That would certainly fit with the symptoms of the crash flight.

Boeing B*ll Sh*t

They failed to advise the pilot community of the instability of the 737 Max 8

Murder she said!

Not sure about the 737MAX but on the 737NG it is not mandatory to carry out a test of the newly installed sensor.

Lion Air CVR Search Called Off
 

Not 2018 accident investigation:



Lion Air ends search for CVR from 737 MAX crash | Safety content from ATWOnline

From the ATW article
 

In what world does an airline call off the search for critical data relating to one of its own accidents?

Doesn't this development also call into question the integrity and diligence of the Indonesian MOT?

The search for the CVR isn't ending, but Lion Air will no longer be leading (or presumably paying for) the search.

I'd think Boeing would really want to find it...

Those that want the CVR need to pay for the search

The Governments involved should define the need (Airworthiness)

Curiosity is not always afforable

In Indonesia - the Govt doesn't have much money and so they can only pay so much - right now they're probably prioritizing the Krakatoa tsunami victims who are at least alive - in Indonesia there's always another disaster about to happen that requires funds...................

Point well taken. Boeing is a VERY important business in the United States. The U.S. government should pony up to continue the search for the CVR, Surely, the executive branch has a "flush fund" for such events (government shutdown notwithstanding), I suspect the chair of the NTSB is quite unhappy, for he is honest and an absolute expert.

Search for the CVR resumed.
https://uk.reuters.com/article/uk-in...-idUKKCN1P2066

NTSC Continues Lion Air JT-610 CVR Search
http://mediaindonesia.com/read/detail/209161-knkt-lanjutkan-pencarian-cvr-lion-air-jt-610
(Google Chrome Translation)
"A KNKT source, speaking on condition of anonymity, told Reuters the team will have seven days using the ship KRI Spica to find the CVR..."

The National Transportation Safety Committee (NTSC) collaborates with the Navy's Hydrographic and Oceanographic Center (Pushidrosal) to return to search for cockpit voice recorders Lion Air JT-610 PK-LQP (CVR) which crashed in Tanjung Karawang waters some time ago.

Pushidrosal deployed KRI Spica-934 which departed from the Jakarta International Container Terminal (JICT) Pier 2, Tanjung Priok Port, Tuesday (1/8).

The departure of the Hydro-Oceanographic survey vessel under the guidance of the Pushidrosal was released by the Head of Regional Police Laksda TNI Harjo Susmoro and the Chair of the NTSC Soerjanto Tjahjono and the main officials of the two institutions.

Kapushidrosal in his written statement, said, the departure of KRI Spica-934 which has underwater equipment with advanced technology is to continue to look for the existence of CVR which until now has not been found with a complete tool such as Multibeam Echosounder (MBES), Sub Bottom Profiling (SBP) , Magnetometer, Side Scan Sonar, ADCP, and HIPAP equipment that can detect signals from the black box of Lion JT-610.

"In addition to the equipment, KRI Spica-934 also brought 55 crew members, 9 NTSC personnel, 18 Navy divers, and 6 Scientists," he said.

Meanwhile, the Chair of the NTSC Soerjanto Tjahjono said that the NTSC requested Pushidrosal's assistance with the latest equipment to look for the CVR's existence.

With all the power available, KRI Spica, which is commanded by Marine Lt. Col. (P) Hengky Iriawan, has time to look for the CVR Lion Air flight number JT-610 for 15 days, given the signal that CVR emits for 90 days.

At present the remaining remaining time is around 15 days left, since the Lion Air plane crashed in Karawang waters on October 29, 2018.

"We will focus on searching 5 x 5 meters wide, around the point where CVR is estimated. With all our efforts and prayers, we hope that the CVR can be found following the discovery of a flight data recorder (FDR) some time ago to complete the investigation into the cause. "The fall of Lion Air is certain," said Kapushidrosal. (OL-1)

Lion Air JT610 Cockpit Voice Recorder Recovered
 

Reports in Indonesian media that the CVR has been found.

https://cimg5.ibsrv.net/gimg/pprune....91c9e705a1.jpg

https://kumparan.com/@kumparannews/t...36351341563155

Time and an timely manner
 

I am hoping the long salt water immersion didn't ruin the recording(s) and we get to see the transcripts in a timely manner.
Certainly think this will put the spotlight on the failing(s) in this devastating and sad accident.

I'm pretty confident that the recorder will be just fine. If there is a silver lining to an accident with a brand new aircraft, it's that it has brand new recorders - and the new solid state recorders are vastly better than the older models.
A month or two in ~150 ft. deep salt water is a cake walk compared to what the latest generation of recorders are designed for.

Assuming the CVR was in the tail, locating it 8 metres below the seabed reinforces the vertical speed of impact.
Also assuming no beacon signal for weeks, it is pretty impressive that they found it.
I am interested to know how they went about the search.