YIV notam

[bobcaygeon]

Very large trees on appproach to rwy 12. Must be global warming

[grimey]

Didn't that get cancelled when the trees were trimmed?

/just knows a threadlock is coming...

[ski_bum]

Better NOTAM the rest of the northern Canada's airports too... I've never had an issue with those trees...

[Doc]

NOTAM....the trees under your aircraft are nearer than they appear.

[floatflyingguy]

i am thinking that this notam may have something to do with this...

User Name: Ridley, Rod
Date: 2009/01/20
Further Action Required: Yes
O.P.I.: Commercial & Business Aviation
Narrative: The crew of a Skynorth Air Ltd Beech 100, C-GNAA, was on a re-positioning flight from Thompson, MB, to Island Lake. On arrival in the Island Lake area, the crew commenced an instrument approach to Runway 12. During the approach, the aircraft descended and the crew carried out a missed approach. During the missed approach, the aircraft struck a tree. The crew continued the missed approach and returned for a landing at Island Lake without further incident. No injuries were reported. The aircraft sustained damage to the wing leading edge and underside, and to its landing gear doors. The aircraft was ferried to Winnipeg for repairs. TSB is currently assessing the level of investigation they will carry out for this accident.

User Name: Ridley, Rod
Date: 2009/01/21
Further Action Required: No
O.P.I.: System Safety
Narrative: UPDATE TSB Winnipeg reported that they will conduct a Class 3 investigation into this accident. A Minister's Observer from System Safety will be appointed.

[Doc]

It's a really big problem.....first, the trees take out Sonny Bono, now this? We are all at the mercy of these vicious seven hundred foot, leafy monsters! Max power.....CLIMB for your very lives!!

We must bough down to the Great Tree God

[MG_]

.

[Four1oh]

It's a really big problem.....first, the trees take out Sonny Bono, now this? We are all at the mercy of these vicious seven hundred foot, leafy monsters! Max power.....CLIMB for your very lives!!

We must bough down to the Great Tree God

bough down... lol...

[Cat Driver]

I guess this is what we get for discussion when these accidents happen and no one can discuss the actual event.

The event is turned into a joke.

[Tim]

not that its an excuse to run into something but is there not a caution in the CFS? just how high are said trees? perhaps TC can do an assesment of the feasibility of installing hazard beacons on all trees in canada taller than 50'

[Doc]

I know for a fact, all the giraffes at the Toronto Zoo, and the African Lion Safari are now required to be lit at night.

[just curious]

Most occupants of the Inuvik zoo are lit at night, seems fair

[TheEvilTwin]

So what is a class 3 investigation... isn't this about the 3rd occurence these guys have had in the past 2 months??

[grimey]

http://www.tsb.gc.ca/eng/normes-standar ... rences.asp

Policy

Classes of Occurrences
The Board will focus its efforts on occurrences in the federally regulated, commercial transportation sector. Each transportation occurrence will be assigned to one of the following Classes of Occurrences:

Class 1 Occurrences (Public Inquiry)
When the Board deems it necessary, the Board will conduct public inquiries into transportation occurrences that it is investigating (be they accidents or incidents; or situations or conditions that, if left unattended, could induce an accident). In determining whether to conduct a public inquiry, the Board will consider the following:

* the potential for reducing the risk to persons, property, or the environment;
* whether an inquiry would uncover facts that might not otherwise be made known;
* whether an inquiry would result in quicker remedial action;
* the actual or potential extent of injuries and/or loss of life;
* the degree of public interest in and concern about public safety; or
* the possible involvement of an arm of government.

Class 2 Occurrences (Individual Occurrence Investigation)
An individual occurrence shall be investigated when:

1. there is a high probability of advancing Canadian transportation safety in that there is significant potential for reducing the risk to persons, property, or the environment; or
2. the Governor in Council so requests (pursuant to Section 14(1) of the CTAISB Act).

Return to the top of the page
Top of Page

Class 3 Occurrences (Individual Occurrence Investigation)
Individual occurrences that do not meet the criteria of Class 2 occurrences may be investigated when:

1. there is significant public expectation that the TSB should independently make findings as to cause(s) and contributing factors; or
2. there is potential for better understanding the latent unsafe conditions contributing to a significant safety issue; or
3. a government representative so requests (pursuant to Section 14(2) of the CTAISB Act); or
4. the Board must do so to meet its obligations or commitments.

Class 4 Occurrences (Safety Issue Investigation)
Multiple occurrences, which the Board deems to be indicative of significant unsafe situations or conditions, will be subject to a safety issue investigation when:

1. there is a high probability of advancing Canadian transportation safety by reducing the risk to persons, property, or the environment; or
2. in the Board's opinion, there is widespread public expectation that the TSB should independently analyse a particular safety issue.

(Activities of this type will generally be based on a significant safety issue previously identified by the Board in consultation with the transportation community and the public.)
Return to the top of the page
Top of Page

Class 5 Occurrences (Data Collection)
Data pertaining to occurrences that do not meet the criteria of classes 1 through 4 will be recorded in suitable scope and detail for possible safety analysis, statistical reporting, or archival purposes.

Notes
Generally, the Board will not participate in the investigation of foreign occurrences unless there is a high probability of advancing Canadian transportation safety; and, generally, it will not investigate industrial-type occurrences (i.e. those not directly related to the transportation aspects of operations).

An occurrence will not be classified until sufficient facts are available to assess the potential for safety payoff. This may require deployment to the occurrence site to evaluate physical evidence, reviewing documents, interviewing personnel or witnesses, etc. During this period, investigators may exercise the powers of an investigator established in the CTAISB Act.

When practicable, an individual occurrence will be classified within 72 hours of the initial occurrence notification. In general, an occurrence can be reclassified based on the perceived potential for significant safety outcome. However, no classified occurrence can be downgraded to Class 5.

The investigative response for each class of occurrence will be in accordance with standard operating procedures prescribed in the Manuals of Investigation Operations.

[pelmet]

http://tsb.gc.ca/eng/rapports-reports/a ... 9c0012.asp

Findings as to Causes and Contributing Factors
1.The crew conducted an Area Navigation (RNAV) approach for which they were not trained, with an aircraft that was not properly equipped nor approved for such purpose.
2.The aircraft descended 300 feet below the minimum descent altitude (MDA) as a result of a number of lapses, errors and adaptations which, when combined, resulted in the mismanaged approach.
3.The aural warning on the aircraft's altitude alerter had been silenced prior to the approach, which precluded it from alerting the crew when the aircraft descended below minimum descent altitude.
4.The SkyNorth standard operating procedures for conducting a non-precision approach were not followed, which resulted in the aircraft descending below the minimum descent altitude. During the ensuing missed approach, the aircraft struck trees.

Findings as to Risk
1.The lack of a more-structured training environment and the type of supervisory flying provided increased the risk that deviations from standard operating procedures (SOPs) would not be identified.
2.There are several instrument approach procedures in Canada that contain step-down fixes that are not displayed on global positioning system (GPS) units. This may increase the risk of collision with obstacles during step-downs on approaches.