Posts about: "NTSB" [Posts: 25 Page: 1 of 2]ΒΆ

Chock Puller
February 10, 2025, 13:38:00 GMT
permalink
Post: 11825508
From the NTSB.

Update yourself on what the NTSB is reporting.

https://www.ntsb.gov/investigations/...CA25MA108.aspx

Subjects NTSB

Links are to this post in the relevant subject page so that this post can be seen in context.

1 recorded likes for this post.

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

airplanecrazy
February 14, 2025, 21:24:00 GMT
permalink
Post: 11828216
Here is the text of the prepared remarks from today's NTSB briefing which includes the event timeline: Prepared remarks

Subjects NTSB

Links are to this post in the relevant subject page so that this post can be seen in context.

1 recorded likes for this post.

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

PEI_3721
February 22, 2025, 16:33:00 GMT
permalink
Post: 11833758
WMF,
… well having searched the usual places and the NTSB, you will have to help with directions and text for reference.

There is a NTSB Charter for data, but nothing which explains the link between ICAO and the USA, and thence to the NTSB and investigation, or the required statement of any USA deviation from the ICAO guidance (Annex 13).
Notwithstanding https://www.ntsb.gov/about/organizat...office_as.aspx
" fulfill U.S. obligations under International Civil Aviation Organization agreements"
"to examine specific aviation safety problems from a broader perspective.
"

But back to the thread. Are there any reasons why NTSB might not comment on the wider organisational aspects as indicated in the discussion. Also noting that the NTSB have no powers of enforcement, relying on the FAA; thus if the FAA process were to be identified as deficient, who mandates change.
,,

Last edited by PEI_3721; 22nd February 2025 at 16:44 . Reason: Link

Subjects FAA  ICAO  NTSB

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

Wide Mouth Frog
February 22, 2025, 17:10:00 GMT
permalink
Post: 11833774
Originally Posted by PEI_3721
WMF,
… well having searched the usual places and the NTSB, you will have to help with directions and text for reference.

There is a NTSB Charter for data, but nothing which explains the link between ICAO and the USA, and thence to the NTSB and investigation, or the required statement of any USA deviation from the ICAO guidance (Annex 13).
Notwithstanding https://www.ntsb.gov/about/organizat...office_as.aspx
" fulfill U.S. obligations under International Civil Aviation Organization agreements"
"to examine specific aviation safety problems from a broader perspective.
"

But back to the thread. Are there any reasons why NTSB might not comment on the wider organisational aspects as indicated in the discussion. Also noting that the NTSB have no powers of enforcement, relying on the FAA; thus if the FAA process were to be identified as deficient, who mandates change.
,,
There you go. A bit of work with google is never time wasted. I offered an opinion about the extent to which the NTSB might be incentivised to explore issues of the mission of the FAA, and like all opinions, it resides in the domain of politics. That's a possible reason why the NTSB might not choose to go there. However an ex-Inspector General of the Dept of Transportation had strong views on the subject, and I give a lot of weight to her opinion, supported as it is by her personal experiences of dealing with the FAA.

Subjects FAA  ICAO  NTSB

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

WillowRun 6-3
February 22, 2025, 19:36:00 GMT
permalink
Post: 11833828
Originally Posted by PEI_3721
WMF,
\x85 well having searched the usual places and the NTSB, you will have to help with directions and text for reference.

There is a NTSB Charter for data, but nothing which explains the link between ICAO and the USA, and thence to the NTSB and investigation, or the required statement of any USA deviation from the ICAO guidance (Annex 13).
Notwithstanding https://www.ntsb.gov/about/organizat...office_as.aspx
" fulfill U.S. obligations under International Civil Aviation Organization agreements"
"to examine specific aviation safety problems from a broader perspective.
"

But back to the thread. Are there any reasons why NTSB might not comment on the wider organisational aspects as indicated in the discussion. Also noting that the NTSB have no powers of enforcement, relying on the FAA; thus if the FAA process were to be identified as deficient, who mandates change.
,,
I'm fairly certain that, because Annex 13 and all else pursuant to the Chicago Convention of 1944 applies to international civil aviation, the statutory as well as practical jurisdiction and responsibility of NTSB are matters dealt with by federal statute and regulations. This is not to say that the Board will or should ignore Annex 13 or declare it irrelevant - but it is to say -
first, the NTSB's authorization and processes are set by federal law and not by Annex 13 (although as the excerpt you quoted also says, Ann. 13 does apply where the case is international civil av.); and
second, the DCA midair is not within international civil aviation (sorry to find it necessary to state the obvious).

I cannot cite anything specific to support it but I'm strongly inclined to think Chair Homendy, at this point in her public service career, will insist on a report and supporting analysis that leaves, if you will, political niceties on the bottom of the Potomac shy of the Rny 3-3 threshold -- where they belong. We will see, time will tell.

Subjects DCA  FAA  ICAO  NTSB  NTSB Chair Jennifer Homendy

Links are to this post in the relevant subject page so that this post can be seen in context.

3 recorded likes for this post.

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

BFSGrad
March 11, 2025, 20:08:00 GMT
permalink
Post: 11845606
AIR-25-01 Deconflict Airplane and Helicopter Traffic in the Vicinity of KDCA

Findings

Existing separation distances between helicopter traffic operating on Route 4 and aircraft landing on runway 33 are insufficient and pose an intolerable risk to aviation safety by increasing the chances of a midair collision.

When Route 4 operations are prohibited as recommended in Safety Recommendation A-25-1, it is critical for public safety helicopter operations to have an alternate route for operating in and around Washington, DC, without increasing controller workload.

To the Federal Aviation Administration:

Prohibit operations on helicopter Route 4 between Hains Point and the Wilson Bridge when runways 15 and 33 are being used for departures and arrivals, respectively, at Ronald Reagan Washington National Airport. (A-25-1) (Urgent)

Designate an alternative helicopter route that can be used to facilitate travel between Hains Point and the Wilson Bridge when that segment of Route 4 is closed. (A-25-2) (Urgent)

Subjects ATC  Findings  KDCA  Route 4  Separation (ALL)

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

BFSGrad
March 11, 2025, 20:21:00 GMT
permalink
Post: 11845619
NTSB Aviation Investigation Preliminary Report - N709PS, PAT25

Subjects NTSB  PAT25  Preliminary Report

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

safetypee
March 11, 2025, 20:35:00 GMT
permalink
Post: 11845640
From NTSB interim report on DCA aircraft / helicopter collision.

"Near Midair Collision Events at DCA
Review of information gathered from voluntary safety reporting programs along with FAA data regarding encounters between helicopters and commercial aircraft near DCA from 2011 through 2024 indicated that a vast majority of the reported events occurred on approach to landing. Initial analysis found that at least one TCAS resolution advisory (RA) was triggered per month due to proximity to a helicopter. In over half of these instances, the helicopter may have been above the route altitude restriction. Two-thirds of the events occurred at night.

A review of commercial operations (instrument flight rules departures or arrivals) at DCA between October 2021 and December 2024 indicated a total of 944,179 operations. During that time, there were 15,214 occurrences between commercial airplanes and helicopters in which there was a lateral separation distance of less than 1 nm and vertical separation of less than 400 ft. There were 85 recorded events that involved a lateral separation less than 1,500 ft and vertical separation less than 200 ft."



What is seen - reported; and what is dismissed … diminishes the value of reporting.
A system broken: a broken safety management system at the national level.

Subjects DCA  FAA  NTSB  PAT25  Preliminary Report  Route Altitude  Separation (ALL)  TCAS (All)  Vertical Separation

Links are to this post in the relevant subject page so that this post can be seen in context.

2 recorded likes for this post.

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

Liffy 1M
March 11, 2025, 21:07:00 GMT
permalink
Post: 11845660
Link to downloadable preliminary report and recommendations: https://www.ntsb.gov/investigations/...CA25MA108.aspx

Subjects Preliminary Report

Links are to this post in the relevant subject page so that this post can be seen in context.

1 recorded likes for this post.

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

WillowRun 6-3
March 13, 2025, 19:01:00 GMT
permalink
Post: 11846989
NTSB document - Urgent Safety Recommendation Report (AIR-25-01)

The NTSB issued a 10-page report, and the link to said report is contained in the Board's recent press release.
https://www.ntsb.gov/news/press-rele...R20250311.aspx

Shout-out to Blancolirio for including some review and comments regarding the report; as far as I recall the issuance of a separate report was not mentioned in the recent update by the Board in connection with its preliminary accident report.



Subjects NTSB

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

Hot 'n' High
March 26, 2025, 08:10:00 GMT
permalink
Post: 11854380
Originally Posted by MechEngr
" My view - they were specifically asked to visually identify a/c A. " is incorrect...........
Hi MechEng , it's been a while since it was discussed.

Here is the NTSB report/transcript and another transcript here . I couldn't locate the one on Prune way, way back but these 2 will do!). ATC specifically call the a/c sidestepping to 33 as the a/c PAT needs to identify. The ATCO even tells PAT what type it is. PAT then say they have "it" visual. Sadly, "it" wasn't the sidestepping a/c, it was another one. But no-one figured that out ...... till seconds before the crash. This initial exchange, according to the transcript, was about 2 min before the collision. It's only then, on the basis that PAT says they have seen "it" and, by implication, will visually avoid it, that ATC issue the clearance on down Route 4.

There was a lot of discussion earlier on in this Thread about how on earth PAT could be reliably expected to pick out the subject a/c from the rest of the stream of arrivals and at that distance (6 miles rings a bell).

It's only seconds before the crash that it appears that the poor ATCO suddenly starts to suspect the PAT crew are actually looking at a different a/c to the one he had asked them to identify and pass behind. But, by then, it was too late for him to figure out a solution to give to PAT.

As I said, this was all discussed many posts ago so it's easy to forget the details. Hope the links help!

Cheers, H 'n' H

Last edited by Hot 'n' High; 26th March 2025 at 08:44 .

Subjects ATC  ATCO  NTSB  Pass Behind  Pass Behind (All)  Route 4

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

Stagformation
June 11, 2025, 16:15:00 GMT
permalink
Post: 11898559
NTSB scheduled 3 day investigative hearing starting July 30

https://www.ntsb.gov/news/press-rele...A20250610.aspx

Subjects: None

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

Musician
August 04, 2025, 05:46:00 GMT
permalink
Post: 11932987
NTSB links

Originally Posted by CLUTTER
Do you have a good link?
NTSB Overview/Updates
https://www.ntsb.gov/investigations/...CA25MA108.aspx
The docket is linked at the bottom of that page.

NTSB Public Docket
https://data.ntsb.gov/Docket/?NTSBNumber=DCA25MA108
The docket contains evidence related to the investigation. Many NTSB investigations have public dockets; often they're released with the final report.

In the docket:
10-HELO-A FLIGHT DATA RECORDER - HELICOPTER - GROUP CHAIRMAN'S FACTUAL REPORT
https://data.ntsb.gov/Docket/Documen...0L_FDR-Rel.pdf

Subjects Final Report  NTSB  NTSB Docket

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

Stagformation
August 06, 2025, 12:31:00 GMT
permalink
Post: 11934105
Originally Posted by ATC Watcher
@WillowRun6-3 : Here from what we know so far, the controllers and their supervisors were trained to work on local procedures made long before they came to the facility . Those procedures were or became unsafe but if this is how they were trained to work , you can't blame the operators for faulty procedures .

Not that the NTSB are going to apportion blame in their report, that isn\x92t their function. But it\x92s quite clear there were (and are) unsafe practices going on among controllers and operators in FAA/DOD land. Read the docket testimony here from page 463 onwards to about 468 or until you get bored.

https://data.ntsb.gov/Docket/Documen...dacted-Rel.pdf

Clearly Army pilots are calling visual on very distant traffic which they haven\x92t actually identified and can\x92t see, and controllers are believing them and contracting responsibility for collision avoidance to them. The Standards pilot being interviewed here (the most experienced Army pilot NTSB spoke to) even says \x91..I know it\x92s bad\x85\x92 but condones the practice because otherwise the PAT helos would have to hold!

The logic displayed here is totally crazy.

If ATC have taken the trouble to issue a traffic advisory to a helo, why does the helo pilot think it\x92s reasonable to assume the traffic (which they haven\x92t seen!) will be no factor. The Controller has called out that particular traffic to the helo pilot for a reason he\x92s become aware of, like the traffic\x92s intended flight path will shortly become a collision risk to the helo.



Last edited by Stagformation; 6th August 2025 at 15:33 .

Subjects ATC  NTSB  NTSB Docket

Links are to this post in the relevant subject page so that this post can be seen in context.

5 recorded likes for this post.

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

missy
August 06, 2025, 13:54:00 GMT
permalink
Post: 11934159
Originally Posted by Sailvi767
Does anyone have a link to the TCAS simulation. That is of interest to me since I had a go around off runway 33 based on TCAS.
Is it MIT-LL TCAS-ACAS SIMULATION STUDY in this list?
#17

Subjects TCAS (All)

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

Stagformation
August 06, 2025, 18:07:00 GMT
permalink
Post: 11934290
Originally Posted by BFSGrad
Because, due to the proximity of Route 4 to runway 1 traffic, 12th AB pilots much more frequently received traffic calls for runway 1 traffic coupled with visual separation, traffic for which there would never be a collision threat. And if there was 33 landing traffic, ATC would just issue a hold. I\x92m still reading through the interviews, but have yet to find an example of a 12th AB pilot that, while on Route 4 with visual separation for 33 landing traffic, actually had to track the aircraft and maneuver to avoid.
In this interview at pages 97 and 112 the pilot says he has operated south on Route 4, and with traffic circling to 33, both accepted \x91hold at Haines Point\x92 and also accepted \x91visual, pass behind\x92 clearances literally dozens of times. Admittedly he wasn\x92t 12th AB. (This is a PSA line check captain who was formerly military UH-1N helicopter pilot operating in the area with USAF at Andrews AFB). Very interesting interview.

https://data.ntsb.gov/Docket/Documen...dacted-Rel.pdf


Last edited by Stagformation; 7th August 2025 at 08:57 .

Subjects ATC  Route 4  Separation (ALL)  Visual Separation

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

Musician
August 08, 2025, 06:37:00 GMT
permalink
Post: 11935035
Originally Posted by DIBO
I've wondered a couple of times, what if.... the CRJ crew had failed to spot the UH60 all together. Now a left-banking evasive manoeuver was started, and only the left wing was substantially shredded by the rotor.
If they would has kept wings level, maybe both wings would have narrowly escaped major damage, only MLG and belly at risk of the main rotor.
But it all doesn't matter, really. 'Fate is the hunter' and they got caught.
From 10-AIR-A FLIGHT DATA RECORDER - AIRPLANE - GROUP CHAIRMAN'S FACTUAL REPORT :

You can see that the pitch-up reduced the airspeed, and the vertical speed was mostly unaffected. This would have had a net effect of making the descent steeper (as the Radio Alt suggests).

If the CRJ crew had remained unaware, we would've learned how the downwash of a helicopter affects the wings of a jet.

The ultimate point is that a situation where a helicopter scrapes by the underside of a jet is not supposed to occur. At this point, all bets are off anyway, and rather than pondering what to do in such a situation, the focus should be on how to prevent it in the first place.

Subjects CRJ

Links are to this post in the relevant subject page so that this post can be seen in context.

4 recorded likes for this post.

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

BFSGrad
August 22, 2025, 21:32:00 GMT
permalink
Post: 11942707
This incident was discussed in posts #1506-1527 of this thread.

NTSB Aviation Investigation Preliminary Report - N879RW (RPA), UH-60 (PAT23)

…but around this time, PAT23 had checked in with the JPN Heliport Tower (HT) LC controller and was attempting to land on the helipad without a landing clearance. When the JPN HT LC controller queried the crew to ask who had cleared them to land, the crew advised they were executing a go around and that DCA ATCT had cleared them to the helipad.

Subjects ATC  DCA  NTSB  PAT23  Preliminary Report

Links are to this post in the relevant subject page so that this post can be seen in context.

No recorded likes for this post (could be before pprune supported 'likes').

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

WillowRun 6-3
December 12, 2025, 03:06:00 GMT
permalink
Post: 12003913
https://www.ntsb.gov/news/Documents/...tion%20Act.pdf

Letter to Congressional leaders re: NDAA from NTSB Chair Homendy.
The letter is addressed to the Chair and Ranking Members of the Armed Services Committees in both the House and Senate.

Subjects NDAA  NTSB  NTSB Chair Jennifer Homendy

Links are to this post in the relevant subject page so that this post can be seen in context.

2 recorded likes for this post.

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.

artee
December 12, 2025, 06:05:00 GMT
permalink
Post: 12003936
Originally Posted by WillowRun 6-3
https://www.ntsb.gov/news/Documents/...tion%20Act.pdf

Letter to Congressional leaders re: NDAA from NTSB Chair Homendy.
The letter is addressed to the Chair and Ranking Members of the Armed Services Committees in both the House and Senate.
I'm coming to like Jennifer Homendy. It certainly looked like one of the contributory factors to the DCA crash was the military considering themselves to be outside the normal best practises. They now seem to be seeking to make that explicit.

Subjects DCA  NDAA  NTSB  NTSB Chair Jennifer Homendy

Links are to this post in the relevant subject page so that this post can be seen in context.

4 recorded likes for this post.

Reply to this quoting this original post. You need to be logged in. Not available on closed threads.