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ASN Wikibase Occurrence # 233878
Last updated: 19 November 2020
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Date:26-FEB-2020
Time:c. 00:10 UTC
Type:Silhouette image of generic A321 model; specific model in this crash may look slightly different
Airbus A321-211
Owner/operator:Titan Airways
Registration: G-POWN
C/n / msn: 3830
Fatalities:Fatalities: 0 / Occupants: 7
Other fatalities:0
Aircraft damage: Minor
Category:Serious incident
Location:near London-Gatwick Airport -   United Kingdom
Phase: Take off
Nature:Ferry/positioning
Departure airport:London-Gatwick Airport (LGW/EGKK)
Destination airport:London-Stansted Airport (STN/EGSS)
Investigating agency: AAIB
Narrative:
At 00:09 UTC on 26 February 2020, G-POWN took off from London Gatwick Airport for a flight to London Stansted Airport. At approximately 500 ft agl in the climb, there was a loud noise and flames were seen coming from the tailpipe of the No 1 engine as it surged. The crew made a MAYDAY call and turned right to return to the airport. Two minutes later, parameters relating to the No 2 engine began to fluctuate and the crew received an indication that the engine had stalled. The aircraft landed at 00:20 hrs.

An investigation revealed that the aircraft entered a period of extensive maintenance, starting on 23 January 2020. For most of this time, all the fuel tank access panels were open to allow work to be carried out inside the fuel tanks until 19 February 2020 when the aircraft was moved outside. Once outside, the fuel tanks were leak-checked and treated for moderate microbial contamination.

During the biocidal shock treatment, an excessive quantity of Kathon biocide was introduced into the aircraft’s wing fuel tanks, equating to 37 times the maximum permitted dosage in the AMM. The AMO engineer who carried out this task had not performed it before and did not recognise that he was using an excessive quantity of biocide. The excessive level of Kathon in the aircraft’s fuel system is suspected to have caused the subsequent problems with the aircraft’s engines.

EASA SIB 2020-06 has been issued regarding the use of DuPont Kathon FP1.5 Biocide. The investigation is ongoing. On Mar 25th 2020 the FAA released a Special Airworthiness Information Bulletin (SAIB) NE-20-04 reasoning:

"In engines and aircraft where biocides are approved for use, the manufacturers provide procedures in their AMMs for the application of these biocides into the aircraft fuel tanks. Several recent events have been documented showing adverse engine effects on the ground and in-flight after application of a biocide treatment of the aircraft. Two of these events were the result of overdosing the fuel system beyond the recommended dosage, however, one event has shown no evidence of misapplication. While lack of clarity of the AMM procedures, or lack of adherence to those procedures by the maintenance personnel, may have contributed to the overdosing events, evidence suggests that some engine models are more sensitive to Kathon FP1.5 concentration than others".

Sources:

1. AAIB Special Bulletin: https://assets.publishing.service.gov.uk/media/5f451980e90e074c539812c7/AAIB_Special_Bulletin_S1-2020_G-POWN.pdf
2. https://ad.easa.europa.eu/ad/2020-06
3. http://avherald.com/h?article=4d42d3b7&opt=0
4. https://www.aeroinside.com/item/14473/titan-a321-at-london-on-feb-26th-2020-left-engine-surged-engine-stall-indications-for-right-engine

Other occurrences involving this aircraft

6 May 2012 OE-LET NIKI Luftfahrt GmbH 0 Wien-Schwechat International Airport - LOWW min

Media:

Airbus A321-211 G-POWN: c/no 3830. Built 2009. Owned by Titan Airways but operating for Jet 2 and seen departing on flight LS1513/EXS1513 to Mahon from London Stansted, Essex, UK, 10th July 2018:Airbus A321-211 ‘G-POWN’ (42228086710)

Images:

Photo of G-POWN courtesy AirHistory.net


Tenerife Sur - Reina Sofia (GCTS / TFS)
25 April 2018; (c) Danny Grew


Radar track of G-POWN with timing of significant events highlighted Figure: AAIB

Revision history:

Date/timeContributorUpdates
11-Mar-2020 14:36 harro Added
21-Apr-2020 16:25 harro Updated [Total occupants, Source, Narrative, Photo]
30-Apr-2020 10:39 Anon. Updated [Source, Narrative]
21-Oct-2020 22:20 Dr. John Smith Updated [Source, Embed code, Narrative]

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