You can contribute by submitting additional or updated information.
| Date: | Saturday 9 January 1993 |
| Time: | 09:05 |
| Type: |  Boeing 757-236 |
| Owner/operator: | British Airways |
| Registration: | G-BIKY |
| MSN: | 23533/93 |
| Year of manufacture: | 1986 |
| Fatalities: | Fatalities: 0 / Occupants: 130 |
| Other fatalities: | 0 |
| Aircraft damage: | Minor, repaired |
| Location: | Munich Airport (MUC/EDDM) -
 Germany
|
| Phase: | Landing |
| Nature: | Passenger - Scheduled |
| Departure airport: | |
| Munich Airport (MUC/EDDM) | |
| Investigating agency: | AAIB |
| Confidence Rating: |  Accident investigation report completed and information captured |
As G-BIKY was landing at Munich the crew of a company Boeing 767 observed something fall
from the subject aircraft. The debris was recovered and found to be portions of the thrust reverser
cascade fitted at the top outboard position on the number one engine. The vane assembly of the
cascade segment had separated from the surrounding frame at the braze joints, and had struck the
translating cowl, causing minor impact damage to the cowl outer skin. The frame was still attached
to the reverser. Metallurgical examination indicated that the failure had originated in the frame
angle at the top leading edge, and had progressed through the corner of the cascade segment. This
fracture had then caused rapid failure of the 3 vanes attaching to the front frame member, leading to
complete detachment of most of the vanes. There was evidence of contact with the inside surfaces
of the translating cowl, probably in the last few reverser cycles before the incident took place. In
view of the nature of the crack initiation and lack of any knowledge of previous cracking in this
area, it is the view of the metallurgist that this could be a "one-off" event. The cascade parts have
been returned to the manufacturer for further investigation. A fleet check has found no other cases
of this type of cascade damage.
Accident investigation:
 |
|
Sources:
https://assets.publishing.service.gov.uk/media/542303ace5274a1314000ba9/Boeing_757-236__G-BIKY_04-93.pdf
https://www.jetphotos.com/photo/5924311 (Photo)
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Apr-2025 11:21 | Justanormalperson | Added |
| 15-Apr-2025 11:22 | ASN | Updated [Accident report, ] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2025 Flight Safety Foundation