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Last updated: 25 August 2019
Date:Sunday 10 June 1990
Time:07:33 UTC
Type:Silhouette image of generic BA11 model; specific model in this crash may look slightly different
BAC One-Eleven 528FL
Operator:British Airways
Registration: G-BJRT
C/n / msn: 234
First flight: 1977
Total airframe hrs:37724
Engines: 2 Rolls-Royce Spey 512-14DW
Crew:Fatalities: 0 / Occupants: 6
Passengers:Fatalities: 0 / Occupants: 81
Total:Fatalities: 0 / Occupants: 87
Aircraft damage: Substantial
Aircraft fate: Repaired
Location:over Didcot (   United Kingdom)
Phase: En route (ENR)
Nature:Int'l Non Scheduled Passenger
Departure airport:Birmingham International Airport (BHX/EGBB), United Kingdom
Destination airport:Málaga Airport (AGP/LEMG), Spain
The accident happened when the aircraft was climbing through 17,300 feet on departure from Birmingham. The left windscreen, which had been replaced prior to the flight, was blown out under effects of the cabin pressure when it overcame the retention of the securing bolts, 84 of which, out of a total of 90, were of smaller than specified diameter. The commander was sucked halfway out of the windscreen aperture and was restrained by cabin crew whilst the co-pilot flew the aircraft to a safe landing at Southampton Airport.

Probable Cause:

The following factors contributed to the loss of the windscreen:
- A safety critical task, not identified as a 'Vital Point', was undertaken by one individual who also carried total responsibility for the quality achieved and the installation was not tested until the aircraft was airborne on a passenger carrying flight.
- The Shift Maintenance Manager's potential to achieve quality in the windscreen fitting process was eroded by his inadequate care, poor trade practices, failure to adhere to company standards and use of unsuitable equipment, which were judged symptomatic of a longer term failure by him to observe the promulgated procedures.
- The British Airways local management, Product Samples and Quality Audits had not detected the existence of inadequate standards employed by the Shift Maintenance Manager because they did not monitor directly the working practices of Shift Maintenance Managers.

Accident investigation:
Investigating agency: AAIB
Status: Investigation completed
Duration: 1 year and 8 months
Accident number: AAIB AAR 1/92
Download report: Final report

Forced landing on runway

Follow-up / safety actions

AAIB issued 8 Safety Recommendations

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This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Birmingham International Airport to Málaga Airport as the crow flies is 1755 km (1097 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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