Incident Boeing 737-2Y5 9H-ABA,
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ASN Wikibase Occurrence # 147090
 
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Date:Wednesday 20 October 1993
Time:20:16
Type:Silhouette image of generic B732 model; specific model in this crash may look slightly different    
Boeing 737-2Y5
Owner/operator:Air Malta
Registration: 9H-ABA
MSN: 23038/949
Year of manufacture:1983
Fatalities:Fatalities: 0 / Occupants: 101
Aircraft damage: None
Category:Incident
Location:London-Gatwick Airport (LGW/EGKK) -   United Kingdom
Phase: Landing
Nature:Passenger - Scheduled
Departure airport:Malta-Luqa Airport (MLA)
Destination airport:London-Gatwick Airport (LGW/EGKK)
Investigating agency: AAIB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
The incident occurred when a Boeing 737-2Y5A aircraft landed on Taxiway 2 at London Gatwick Airport after making a Surveillance Radar Approach (SRA) at night to land on runway 26R. Taxiway 2 was unoccupied at the time. The aircraft was subsequently taxied to the parking area where the passengers and crew disembarked via the normal channels.

CAUSAL FACTORS:
(i) Runway 26R was clearly visible throughout the approach but the pilots looked for and selected a pattern of lights to the right of it because they assumed erroneously that 26R was in fact 26L and they knew that the designated runway had to be to the right of this.
(ii) The flight crew had not briefed themselves on the lighting they were expecting to see on Runway 26R once the change of runway had been confirmed.
(iii) The crews' misinterpretation of the visual cues was facilitated by:
a. The similarity between the night time view of Runways 26L and 26R with associated taxiways to the right which are marked with green centreline lighting.
b. The use of Runway 26R sometimes as a runway with edge lighting and sometimes as a taxiway with centreline lighting.
c. The green centre line lights of Taxiway 2 were set at a brilliance of 30% until the aircraft was about 2 miles from touchdown when they were reset to 10%. Whilst the lights were at the brighter intensity the chance of mistaking Taxiway 2 for the runway was considerably increased and the mistake was possible at an earlier stage in the approach.

Accident investigation:
cover
  
Investigating agency: AAIB
Report number: 
Status: Investigation completed
Duration:
Download report: Final report

Sources:

AAIB Aircraft Incident Report 3/94: https://assets.digital.cabinet-office.gov.uk/media/5422f212e5274a13170003d5/3-1994_9H-ABA.pdf

Revision history:

Date/timeContributorUpdates
26-Jul-2012 07:20 harro Added
20-May-2016 20:53 Dr.John Smith Updated [Location, Destination airport, Source, Narrative]

Corrections or additions? ... Edit this accident description

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