Judgments of the Court of Appeal of New Zealand on Proceedings to Review Aspects of the Report of the Royal Commission of Inquiry into the Mount Erebus Aircraft Disaster C.A. 95/81

Part 6

Chapter 63,940 wordsPublic domain

It was not until 14th November 1979 that any question arose about the McMurdo waypoint. On that day Captain Simpson had taken the second November 1979 sightseeing flight to the Antarctic and something persuaded him to raise the matter of the southern waypoint with Captain Johnson, the Flight Manager Line Operations. There is a difference of opinion as to precisely what was said by Captain Simpson to Captain Johnson but according to the evidence of those in the navigation section they thought that when they checked up-to-date records of the co-ordinates at McMurdo Station against the original NV90 flight plan what had been brought forward for notice was the small difference of 10 minutes of longitude to which reference has been made. They said this represented the recent relocation of the tactical air navigation system (the TACAN) at Williams Field. Accordingly Mr Brown of the navigation section wrote into his worksheet a corrected position of 77° 52.7' S and 166° 58' E and entered those figures into the system on 16th November. But the amendment was not made in the live flight planning system until the early hours of 28th November. According to the members of the navigation section all this was done without knowledge that the effect of introducing the amended figures would be to override "164° 48'" and so alter the co-ordinate by 2° 10' rather than 10'.

The Commissioner rejected the explanations he had heard to the effect that Captain Simpson's information seemed to point to quite a minor movement to the up-dated position of the TACAN. He stated that there appeared to have been clear advice by Captain Simpson that the "false" waypoint was 27 miles west of it. In addition he rejected the possible explanation that the advice had been misinterpreted by Captain Johnson to whom it had been given, and he adopted instead what in paragraph 245 he described as "the second explanation":

"(b) The second explanation is that both Captain Johnston and the Navigation Section knew quite well that the McMurdo waypoint lay 27 miles to the west of the TACAN and that since his track had not officially been approved by the Civil Aviation Division it should therefore be realigned with the TACAN and then someone forgot to ensure that Captain Collins was told of the change. Such an interpretation means that the evidence as to the alleged belief of a displacement of only 2.1 miles is untrue."

Then in paragraph 255 (d) he said this:

"If, as I have held, the Navigation Section knew the actual position of the McMurdo waypoint as being 27 miles to the west of the TACAN, then why did they not submit to Captain Johnson, or to flight Operations Division, that the waypoint should remain where it was? One view is that the Flight Operations Division expected, in terms of Captain Johnson's letter to the Director of Civil Aviation dated 17 October 1979, that the next edition of the Ross Sea chart NZ-RNC4 would contain the official Air New Zealand flight path to McMurdo, and that the safest course would be to put the destination point back to the approximate location at which Civil Aviation Division had thought it had always been."

That last suggestion was not put to any of the navigation witnesses at the Inquiry. It implies that although those in the navigation section believed the airline had been using a computer track to the west of Ross Island for the past year because it was the better route they nevertheless suddenly became uneasy lest knowledge of the matter would now reach the Civil Aviation Division which had not given its official blessing to the change. The idea apparently is that because the airline might receive an official rebuke the officers in the section made their own independent decision that the route must once again be directed back over Mt. Erebus.

There was no evidence at all before the Royal Commission that the approval of the Civil Aviation Division was needed for a change from the direct Cape Hallett/McMurdo route. An affidavit in support of the present application for review indicates that if the matter had been raised at the Inquiry members of the navigation section would have wished to present evidence from the Civil Aviation Division that "a change of route from the direct route to the McMurdo Sound route would not have required CAD approval and therefore could have been lawfully accomplished by the airline without reference to CAD". That situation may have been anticipated by the Commissioner himself for by reference to the false waypoint and the earlier consequential movement of the computer flight track down McMurdo Sound to the west he said that although approval of the route by the Civil Aviation Division should have been obtained it "would have been automatic" (paragraph 150).

In paragraph 255 (f) of the Report the explanation from all four members of the navigation section is described in the following way:

"In my opinion this explanation that the change in the waypoint was thought to be minimal in terms of distance is a concocted story designed to explain away the fundamental mistake, made by someone, in failing to ensure that Captain Collins was notified that his aircraft was now programmed to fly on a collision course with Mt. Erebus."

That finding is one of those directly challenged in the present proceedings.

Advice of the Change

A different matter was considered by the Commissioner in relation to the change made in November 1979 to move the waypoint back to the TACAN at Williams Field. As usual a signal was sent to the United States base at McMurdo with advice that the aircraft was to fly to the Antarctic on 28th November and the flight plan for the journey. And in the list of waypoints appears the word "McMurdo" in lieu of the geographical co-ordinates which had appeared in the equivalent signal for the flight three weeks earlier. The message had been prepared by Mr Brown, one of the four officers in the navigation section.

The use of the word "McMurdo" was the subject of an idea put by the Commissioner to Mr Hewitt, who was the second of the witnesses from the navigation section. The Commissioner asked:

"I know you have explained to me how that happened but someone may suggest to me before the enquiry is over that the object was to thats (sic) not to reveal there had been this long standing error in the co-ordinates and that is why the word McMurdo was relayed to them. I take you would not agree with that"

Mr Hewitt said:

"Certainly not sir."

The suggestion had not been raised earlier at the Inquiry and it was not mentioned by anybody subsequently. In particular it was not put to Mr Brown himself when the latter was called to give evidence three months later. However the Commissioner expressed his view upon the matter in the following way. In paragraph 255 (e) he said this--

"In my opinion, the introduction of the word 'McMurdo' into the Air Traffic Control flight plan for the fatal flight was deliberately designed to conceal from the United States authorities that the flight path had been changed, and probably because it was known that the United States Air Traffic Control would lodge an objection to the new flight path."

It will be observed that the last few words are qualified by "probably". It appears that the Commissioner was told during a visit to Antarctica that the United States authorities would not have approved a flight path over Ross Island. But there was no evidence that Air New Zealand had ever received an intimation from the United States authorities to that effect or that the navigation section had reason to think they would so object. The qualification seems to reflect that position. In the result, when the findings in the two sub-paragraphs 255 (e) and (f) are put together they reveal the theory that at one at the same time the navigation section felt obliged to conceal from officials in Wellington the use of a flight track down McMurdo Sound that was regarded favourably by officials at McMurdo Station and from officials at McMurdo Station a flight track over Ross Island that was regarded favourably by officials in Wellington.

Whiteout

In relation to the cover-up allegations that have been made against the executive officers some reference should be made to their knowledge or otherwise of the freak meteorological condition known as "the whiteout phenomenon". Did they know or suspect that such a condition must have been an explanation for what happened and yet still be determined as the Commissioner found, to promote pilot error as the cause of the crash?

It is something that can be mentioned quite briefly. The Royal Commission Report has made it clear the phenomenon can result in a loss of horizon definition and depth perception and is a great hazard for those who fly in arctic or antarctic conditions. The Commissioner found that at the critical time "air crew had been deceived into believing that the rising white terrain ahead was in fact quite flat and that it extended on for many miles under the solid overcast". This danger is something well known to those who fly regularly in those areas. Unfortunately it is not so well known by others, and as the Commissioner stated in paragraph 165 it was not understood by any of those involved in this case. He said:

"So far as I understand the evidence, I do not believe that either the airline or Civil Aviation Division ever understood the term 'whiteout' to mean anything else than a snowstorm. I do not believe that they were ever aware, until they read the chief inspector's report, of the type of 'whiteout' which occurs in clear air, in calm conditions, and which creates this visual illusion which I have previously described and which is, without doubt, the most dangerous of all polar weather phenomena."

It would seem that if those at airline headquarters were unaware of the deceptive dangers of the whiteout phenomenon they could not have deliberately ignored it as a factor that should be taken into account in favour of the aircrew.

Instructions of the Chief Executive

In paragraph 41 and following paragraphs there is reference to "what happened at the airline headquarters at Auckland when the occurrence of the disaster became first suspected and then known". It is explained that the navigation section became aware of the fact that when the McMurdo waypoint co-ordinates were corrected in November 1979 the movement was not one of 2.1 miles within the vicinity of Williams Field but a distance of 27 miles from longitude 164° 48' E; and that "by 30 November the occurrence of this mistake over the co-ordinates was known not only to the Flight Operations Division but also to the management of the airline. In particular it had been reported to the Chief Executive of Air New Zealand, Mr. M.R. Davis". At that point there follows the serious allegation in paragraph 45 already cited--

"The reaction of the chief executive was immediate. He determined that no word of this incredible blunder was to become publicly known."

On the face of it the unqualified idea expressed in that sentence is that Mr. Davis had decided to suppress from everybody outside the airline all information about the changed flight track. But if that meaning were intended it has been greatly modified in paragraph 48. There it is said--

"It was inevitable that these facts would become known. Perhaps the chief executive had only decided to prevent adverse publicity in the meantime, knowing that the mistake over the co-ordinates must in the end be discovered."

Of course if the decision were merely "to prevent adverse publicity in the meantime" then such an attitude could not in any way be consistent with an attempt "orchestrated" by Mr. Davis to hid from official scrutiny what finally was held by the Commissioner in paragraph 393 to be "the single dominant and effective cause of the disaster". Despite that, paragraph 48 goes on to say this:

"This silence over the changing of the co-ordinates and the failure to tell the air crew was a strategy which succeeded to a very considerable degree. The chief inspector discovered these facts after he had returned from Antarctica on or about 11 December 1979. In his report, which was published in June 1980, the chief inspector referred to what he termed the 'error' in the McMurdo destination point, and the fact that it had been corrected a matter of hours before the flight left Auckland."

It is difficult to understand why the Commissioner considered "this silence over the changing of the co-ordinates and the failure to tell the air crew" had been "a strategy which succeeded to a very considerable degree". The information had been given to the chief inspector immediately on his return from Antarctica. That much is acknowledged in the two sentences that follow. It becomes apparent, however, that this was criticized not because the information had been kept away from those to whom it most certainly had to be given, those charged with the important responsibility of inquiring into the causes of the disaster. Mr. Davis was criticized for nothing more than his failure to release the material to the outside world. That is made plain by a subsequent statement towards the end of the Report which leads on to the very severe pronouncement in paragraph 377 that the Commissioner had been obliged to listen to "a predetermined plan of deception ... an orchestrated litany of lies". The relevant passage is in paragraph 374:

"The fact that the navigation course of the aircraft had been altered in the computer had been disclosed by the chief inspector in his report dated 31 May 1980, 6 months after the disaster. But it was not until the Commission of Inquiry began sitting that the airline publicly admitted that this had occurred."

The effect of the absence of general publicity that the information was given rather than its ready provision by the airline to Mr. Chippindale on the day after his return from the crash site is described in the remaining portion of paragraph 48 which continues in the following way:

"Then the chief inspector went on to say in his report (paragraph 2.5):

'The error had been discovered two flights earlier but neither crew of the previous flight or that of the accident flight were advised of the error by the flight despatcher prior to their departure.'

The chief inspector did not make it clear, however, that the computer flight path of TE 901 had been altered before the flight, and that the alteration had not been notified to the air crew. Had that fact been disclosed in the chief inspector's report then the publicity attending the report would undoubtedly have been differently aligned ... the news blackout imposed by the chief executive was very successful. It was not until the hearings of this Commission that the real magnitude of the mistake by Flight Operations was publicly revealed."

Concerning that last part of paragraph 48 it seems that the Commissioner's remark immediately following the extract from paragraph 2.5 is inaccurate. It appears to suggest either that the chief inspector was unaware of the fact that the alteration to the co-ordinates "had not been notified to the air crew"; or that if he had been made aware of that fact then he had failed to bring it to public attention in his report as the next sentence suggests. But Mr. Chippindale was both aware of all this and he said so. In paragraph 1.17.1 he explicitly stated:

"This error was not corrected in the computer until the day before the flight. Although it was intended that it be drawn to the attention of the previous crew, immediately prior to their departure this was not done, _nor was it mentioned during the pre-flight dispatch planning for the crew of the accident flight_". (Emphasis added.)

The "pre-flight dispatch planning" mentioned in those last words was the occasion of final briefing of the aircrew immediately before the aircraft left Auckland on the morning of 28th November 1981.

A different comment upon paragraph 48 is central in this part of the case. It is very hard to understand why the chief executive officer of this airline should have had any duty to pass on for debate and public prejudgment the same material that in accord with his responsibility had been properly and immediately placed before the appointed official required and well equipped to assess it.

"Irrelevant" Documents

At the beginning of this judgment a different aspect of paragraph 45 is explained by contrast with the following paragraph 46 which correctly summarizes instructions given by Mr Davis for the disposal of surplus copies of documents lest they be leaked to the news media. In paragraph 46 it is explained by the Commissioner that "his instructions were that _only copies of existing documents were to be destroyed_. He said that he did not want any surplus document to remain at large in case its contents were released to the news media by some employee of the airline. The chief executive insisted that his instructions were that all documents of relevance were to be retained on the single file" (emphasis added). There was no evidence before the Royal Commission to any contrary effect. But in the preceding paragraph a different impression is given. The relevant part of paragraph 45 reads--

"He directed that all documents relating to Antarctic flights, and to this flight in particular, were to be collected and impounded. They were all to be put on one single file which would remain in strict custody. Of these documents"--

that is, _all_ documents relating to the Antarctic flights--the sentence continues:

"all those which were not directly relevant were to be destroyed. They were to be put forthwith through the company's shredder."

Then in paragraph 54 the actual instruction is taken into a further dimension where it is described as "this direction on the part of the chief executive for the destruction of 'irrelevant documents'". And one serious complaint made by the applicants about the Royal Commission Report is that what could be an understandable direction for the _retention_ of one copy on a master file _of all relevant documents_ has become an unacceptable instruction that _irrelevant documents_ (related to the Antarctic flights nonetheless) _should be destroyed_. We think the complaint is justified.

At the same early stage of the Report the Commissioner gave his attention to the question as to what if anything was done about the suppression of documentary evidence. He said in paragraph 52:

"As will be explained later, there was at least one group of documents which certainly were in the possession of the airline as from the day following the disaster, and which have never been seen since. I am referring here to the flight briefing documents of First Officer Cassin.... (He) had left his briefing documents at home. They were recovered from his home on the day after the disaster by an employee of the airline. As I say, they have never been seen since."

In the following paragraph 53 he observed--"If the explanation of the chief executive is to be accepted, then in the opinion of someone the briefing documents of First Officer Cassin, the co-pilot, were thought to be irrelevant to the disaster"; and in paragraph 54--"it follows that this direction on the part of the chief executive for the destruction of 'irrelevant documents' was one of the most remarkable executive decisions ever to have been made in the corporation affairs of a large New Zealand company".

Those remarks require some brief comment. It must be explained that the "employee of the airline" mentioned at the end of paragraph 52 was Captain Crosbie. It is true that he was "an employee of the airline" but he did not go to the home of First Officer Cassin in that capacity. He had been asked by the Airline Pilots Association, the group which throughout the inquiry had very properly been concerned to protect the interests of the two deceased pilots, to act on their behalf for the purpose of bringing immediate aid and comfort to the two widows. His evidence was to the effect that he had gone to each of the homes for that purpose; that sometime later a member of Mrs Cassin's family had invited him to take away a box containing such items as flight manuals; and he said he had done no more than that. He flatly denied taking any flight documents. But even if he had, the alleged conspiracy has always been limited in the Royal Commission Report to the executive pilots and other officers in the management area. It has never been suggested that it had extended as well to the airline pilots. As may be expected, throughout both investigations they have done their conscientious best to protect the valued reputations of their deceased colleagues.

There was documentary evidence before the Inquiry to the effect that on 30th November 1979 an in-house committee of Air New Zealand met on the instruction of Mr Davis for the purpose of deciding how to collect together all available information relevant to the accident. It seems that it began its practical work on Monday 3rd December. In that regard and as an example of the way in which the applicants say the cover-up allegation could have been answered by those affected they placed material before this Court which would suggest that the formation of such a committee is a conventional step taken by an airline when confronted with any serious disaster, that it was required by this company's Accident Investigation Procedures Manual, and that this committee was appointed accordingly. If it had been before the Inquiry it would have supported the view that Mr Davis had decided the chairman should not be associated with the flight operations side of Air New Zealand and for that reason he appointed Mr Watson who had charge of certain related companies. There is also an affidavit sworn by Captain Priest who was appointed by the Airline Pilots Association to sit as its representative on the committee. Taken at its face value it is to the effect that he took part in the committee's work from the meeting on 3rd December. In the affidavit he has explained: "My position on that Committee was an ALPA watchdog--there were two other independent members"; that as the inquiry progressed "it became apparent that the committee was amassing a large amount of papers"; and that Mr Watson then announced that he had been directed by the chief executive to get all the information onto one file and any surplus disposed of to avoid information getting into the wrong hands. The affidavit indicates that it was then agreed by the committee itself that this should be done on the basis that the master file was to be available to the committee members at any time and it appears that Captain Priest joined in that decision. It is not for us to decide what would have been the effect or significance of all this material if it had been placed before the Royal Commission but since the conspiracy to deceive theory that is developed in the Royal Commission Report apparently stems from the instruction given by Mr Davis clearly the officers so gravely affected were entitled to be warned in advance and so be given the opportunity to have such information fairly and properly considered.

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