Skip to main content

Safety Lessons from TransAsia ATR-72 Flight GE222 CFIT

The Aviation Safety Council (ASC) of Taiwan has issued their investigation report into the loss of TransAsia Airways (TNA) ATR 72-500 B-22810 on 23 July 2014 during an attempted landing in poor weather.  It highlights a number of important safety lessons.

The Accident

During a non-precision approach, after around 34 minutes of holding, the aircraft impacted terrain in a residential area 800m NE  of the threshold of runway 20 at Magong Airport, Penghu Islands, Taiwan during a heavy thunderstorm associated with Typhoon Matmo. Ten of the 58 on board survived.

The Commander was Pilot Flying  (age 60, ex-military, joined airline in 1992, ATPL, 22,994 hours total, 19,070 hours on ATR42/72) and the First Officer (FO) was Pilot Monitoring (age 39, direct recruit by the airline in 2011, CPL, 2,393 hours total, 2,084 hours on ATR42/72).
There was no approach briefing before commencing descent and the FO “proposed that he conducted the before landing check by himself without a cross-check”, which the Commander approved.

The ASC say the Controlled Flight Into Terrain (CFIT) occurred because:

The crew continued the approach below the [330ft] minimum descent altitude (MDA) when they were not visual with the runway environment contrary to standard operating procedures.

GE222's altitude and track deviations (due to the PF's left control inputs and crosswind) while attempting to visually locate the runway (Credit: ASC)GE222′s altitude and track deviations (due to the PF’s left control inputs and crosswind) while attempting to visually locate the runway (Credit: ASC)

When the aircraft had descended to 249 feet, the first officer illustrated the position of the [Missed Approach Point] MAPt by saying “we will get to zero point two miles”. At 1905:44, altitude 219 feet, the captain disengaged the autopilot. Four seconds later, the captain announced “maintain two hundred”. The captain maintained the aircraft’s altitude between approximately 168 and 192 feet in the following 10 seconds… The flight crew intentionally operated the aircraft below the MDA…while attempting to visually sight the runway so they could land the aircraft.


Neither flight crew member recognised the need for a missed approach until the aircraft was at just 72ft, 0.5 nm beyond the MAPt, where impact with the terrain was “unavoidable”.

GE222 accident site (Credit: ASC)
GE222  impact and accident site (Credit: ASC)

Further accident site photos can be found here and here.

Having discussed the effect of a cockpit gradient, the ASC note that in interviews with other TransAsia crews the consensus was that “the occurrence first officer would accommodate the captains’ flying habits, and tended not to challenge captains’ landing decisions”.  We have previously discussed whether it is better for the Commander to be the Pilot Flying or the Pilot Monitoring and this accident re-emphasises that question.  However, we do note below that the FO did intervene after several course, mode and communication errors by the Commander.

Read More Here: http://aerossurance.com



Comments

Most Viewed Posts

Job Opportunities at Air Tanzania (ATCL)

VACANCIES ANNOUNCEMENT Air Tanzania Company Limited (ATCL) is in the process of revamping its operations and has introduced new equipment to its fleet. The Company is therefore inviting applications from qualified personnel to fill various positions.
1.      POSITIONS: 
1.1. Dash 8 – Q400 Mechanical and Avionics Certifying Engineers (6 POSTS) 
   a)    Qualifications·         ·Must possess a valid Aircraft Maintenance Engineers License (ICAO TYPE II).  ·        ·Must possess a valid Dash 8 – Q400 Approval/License.·Must have successfully completed Dash 8 – Q400 type course from an Approved Training Organisation.       ·Must have Aircraft Maintenance working experience, as a certifying engineer, of not less than 5 years; 2 of which being on Dash 8 – Q400. Experience must include release to service certification after “A” Check and above.       ·Computer literacy·        ·Fluency in English·        ·Possession of Dash 8-Q300 Approval/License will be an added advantage.

   b)    Duties and res…

Job Opportunities at Air Tanzania: Pilots-in-Command, Co-Pilots,Aircraft Maintenance Engineers and Cabin Crews.

Air Tanzania Company Limited (ATCL) is in the process of revamping its operations and has introduced new equipment to its fleet. The Company is therefore inviting application from qualified personnel to fill various positions.
1. POSITIONS: 1.1 Pilot-in-Command – Dash 8 (11 Posts) a) Qualifications: Must possess Airline Transport Pilot License (ATPL) and with performance “A”.Must additionally achieve the following:- ·Minimum of 4000 hours flying experience of which 2000 hours must be command on multi-engine aircraft; Above 17 ton. ·Group 1 endorsement on DASH 8 or Equivalent with a minimum of 500 hours command on type; ·Pass an oral interview and flying acceptance check conducted by the Company; ·Must pass a Base and Route check with an Instrument Rating within 10 and 70 hours respectively; ·Track record of good performance as a Commander and no accident record.
b) Duties and responsibilities: ·To command the aircraft with due regard for safety and comfort of passengers at all times. ·To maintain…

Job Vacancy At Precision Air - Cabin Crews (10-Posts)

JOB VACANCY Precision Air Services Plc is a fast growing private Tanzanian airline which operates in Partnership with Kenya Airways, with its strategies to expand wings beyond East Africa and Africa.
In order to keep our services at a higher level and meet our customers’ maximum satisfaction We wish to invite applications from suitably qualified candidates to fill in this challenging position.
POSITION:          CABIN CREWS(10-POSTS) REPORTS TO:     CHIEF CABIN CREW DUTY STATION: DAR ES SALAAM ROLE PURPOSE OF THE STATEMENT
You will be reporting to Chief Cabin Crew/Assistants Chief Cabin Crew - P