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UK AAIB Releases Report On 2007 Thomsonfly Incident @ BOH  
User currently offlineKaitak From Ireland, joined Aug 1999, 12323 posts, RR: 35
Posted (4 years 11 months 4 days 8 hours ago) and read 5130 times:

The British AAIB has issued its accident report on the Thomsonfly stall incident at BOH, which happened about two years ago; it's an extremely detailed report into what could have been a catastrophic accident. I'll post the link to the AAIB site which contains the report, as it's broken down into different sections.

http://www.aaib.gov.uk/sites/aaib/pu..._g_thof/g_thof_report_sections.cfm

Basically, a Thomsonfly 733, G-THOF, made an approach to BOH at the end of a flight from FAO in September 2007. During this approach, the A/T disengaged (uncommanded), but this was not recognised by the crew*. The events which followed are frightening:

"The Boeing 737-300 was on approach to Bournemouth Airport following a routine passenger flight from Faro, Portugal. Early in the ILS approach the auto-throttle disengaged with the thrust levers in the idle thrust position. The disengagement was neither commanded nor recognised by the crew and the thrust levers remained at idle throughout the approach. Because the aircraft was fully configured for landing, the air speed decayed rapidly to a value below that appropriate for the approach. The commander took control and initiated a go-around. During the go-around the aircraft pitched up excessively; flight crew attempts to reduce the aircraft’s pitch were largely ineffective. The aircraft reached a maximum pitch of 44º nose-up and the indicated airspeed reduced to 82 kt. The flight crew, however, were able to recover control of the aircraft and complete a subsequent approach and landing at Bournemouth without further incident."

44 degrees pitch. 82 knots.
 eyepopping 

Even a 757 on takeoff wouldn't reach 20 degrees of pitch. 44 degrees is simply incredible. The crew nonetheless managed to recover and land safely at BOH.

*Although obviously not referred to in the AAIB report, there are some similarities between this and the Turkish 738 incident at AMS, earlier this year.

2 replies: All unread, jump to last
 
User currently offlineAerdingus From Ireland, joined Dec 2006, 2758 posts, RR: 15
Reply 1, posted (4 years 11 months 4 days 8 hours ago) and read 5057 times:



Quoting Kaitak (Thread starter):
During this approach, the A/T disengaged (uncommanded), but this was not recognised by the crew*

I was watching Air Crash Investigation the other day on the AdamAir crash & I think there was a similar incident, also on a 733, where the A/P disengaged but the crew never heard it.

Quoting Kaitak (Thread starter):
44 degrees pitch. 82 knots.

Scary stuff, fair play to the crew.



Cabin crew blog http://dolefuldolegirl.blogspot.ie/
User currently offlinePlunaaircanada From Canada, joined Jan 2007, 154 posts, RR: 0
Reply 2, posted (4 years 11 months 3 days 8 hours ago) and read 4171 times:

Wow and they managed to get control of the plane!


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