Colonial transportation safety board-Case B-00134321

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Colonial transportation safety board-Case B-00134321
Case Status	Closed
Date of Occurence	22 March 2549
Last Updated	06 January 2556
Accident Location	Caneton Air Force Base, Troy
Operator	United Nations Space Command
Craft (A/X,S/O)	GATL1-C712F Longsword (A/X)
Registration	AF 57-586
Souls on Board	2

Summary

A C712F Longsword, registered AF 57-586 in service with the United Nations Space Command in affiliation to the Air Force, departed the Troy international space port at 13:10 UTC with a filed IFR flight plan to the Caneton Air Force Base. Reported meteorological conditions as per the ATIS at 14:01 UTC indicated heavy thunderstorm activity and a RVR of 1200 feet at the time. The 2 manned flight crew conducted a category 1 ILS approach with the given conditions towards R/W 09L. Upon attaining an approximate altitude of 2,000 feet MSL, the PM assessed that the craft was not in full L/D configuration and recommended a go-around. During short-final, when the pilots had a visual of the R/W at approximately 1,000 feet MSL, it was determined that the flight crew were significantly below the glide path and the PF conducted a missed approach procedure upon attaining 200 feet MSL with a pitch angle of approximately 14°. At 14:22 UTC, the craft entered an aerodynamic stall at full power then losing directional control before coming to a rest. Because of the speed and impact, both wings were dismantled from the craft with certain parts producing a 2 meter deep whole into the ground. The crash site debris field was measured to being around 1900 feet from its initial impact point. The initial emergency response was delayed for 15 minutes due to poor visibility and active military traffic. Emergency responders arrived at the crash site at 14:43 UTC in attempts to control the on-going fire and to aid in the evacuation of the flight crew, but upon reaching the crash site, it was confirmed that the 2 pilots were deceased.

Meteorological information

General

The afternoon forecast of the 22nd of March 2549 was observed by the Troy international weather observation center. Reported meteorological conditions during the time of the accident predicted an advancing cold front west of Aimsir City. Mandated assessments disclosed by the Troy Aviation Administration, weather observers, pilots, and the Colonial Civil Aviation Organization advised compulsory alterations towards the limited and outdated weather observation systems in addition to more sophisticated emplacements to monitor the unpredictable weather patterns on the surface. Troy is documented to be among several UEG established planets to sustain advanced weather phenomena relating to multiple weather related aviation accidents, with Hat Yai being number one.

Actual Weather

Weather during the time of the crash predicted significant alterations towards a multitude of reported forecasts. Related weather reports as of 14:00 UTC is as follows: winds were foretasted to be variable, but primarily coming from the east at 120° with a maximum velocity of 25 knots with gusts exceeding 30 knots. The minimum ceiling covered 8/8 oktas of sky coverage at 1000 feet with a visibility of 3/4SM. Heavy precipitation persisted during the time of the crash associated with thunderstorm activity over the Caneton Air Force Base. The temperature was below zero with a close temperature to dew point spread leading to fog in the vicinity of the aerodrome. Arrivals reported by the ATIS detailed approaches to R/W

SPECI TCNN 221415Z 12025G30KT 3/4SM R09L/1200FT/D +RA FG TS OVC010 M03/M01 A2971 WS RWY 09L/R RMK A01 SLP962

-refer to the METAR abbreviation sheet for decoding (https://www.weather.gov/media/wrh/mesowest/metar_decode_key.pdf)

Colonial Transportation Safety Board Investigation

Class Of investigation

This was a class 4 type investigation

Class 4 Occurence

A class 4 occurrence is a type of investigations in which may involve serious injury(s) or fatalitie(s). There may be a small release of dangerous goods and moderate damage to property and/or environment. The likelihood of identifying new safety lessons and of advancing transportation safety by reducing risks to persons, property, or the environment is low.

Investigator-in-Charge

Dwaipayan Yuzuvendra: Is the lead investigator responsible for leading and assessing all given factors up until and during the time of the crash. The investigative team he had assembled for this case consisted of 6 highly experienced investigators all of which were responsible in determining the final cause of the downing of the national holiday. Before being employed by the CTSB, he was a pilot for the UNSC and for 2 major commercial carriers before joining the CTSB in 2492 and participating in several CTSB investigations.

Public Materials

Images

Airport illustration depicting the point of impact

Glossary (In Given Order)

Coordinated Universal Time (UTC) - The basis for the worldwide system of civil time. It is the primary time standard by which the world regulates clocks and time.

Instrument Flight Rules (IFR) - Pilot to craft operations utilizing references towards craft instrumentation for guidance.

Automatic Terminal Information Service (ATIS) - Repeated automated broadcast issued hourly providing weather related information, runway status, and all relevant information directed to flight crews.

Runway Visual Range (RVR) - Distance over which a pilot of a craft on the centreline of the runway can see the runway surface markings delineating the runway or identifying its centre line. 

Instrument Landing System (ILS) -  A precision runway approach aid based on two radio beams which together provide pilots with both vertical and horizontal guidance during an approach to land.

Runway (R/W) - A movement area at ports intended for departures and arrivals.

Means Sea Level (MSL) - An average level of the surface of one or more of Earth's bodies of water from which heights such as elevation may be measured.

Pilot Monitoring (PM) - Oversees the actions of the pilot flying and monitors all craft instrumentation data.

Landing (L/D) - The act of one object making contact towards the surface of another object.

Pilot flying (PF) - Responsible in conducting all flight inputs during flight.

Unified Earth Government (UEG) - Central civilian government that administers Earth and its colonies throughout a portion of the Orion Arm of the Milky Way galaxy. 

Statue Miles (SM) - A unit of measurement that equivalates to 5,280 feet in length.  

Pilot Report (PIREP) - A report of the actual weather conditions as encountered by pilots. 

Flight Level (FL) - An aircraft's altitude at standard air pressure read by hundreds of feet.