AAIB investigation to Boeing 737-301, G-JMCU

Takeoff with incorrect flap setting, Aberdeen Airport, 6 March 2023

From:
Air Accidents Investigation Branch
Published
8 February 2024
Category:
Commercial - fixed wing
Report type:
Bulletin - Correspondence investigation
Date of occurrence:
6 March 2023
Aircraft type:
Boeing 737-301
Location:
Aberdeen Airport
Registration:
G-JMCU

皇冠体育app aircraft departed Aberdeen Airport with flap 1 set instead of the planned flap 5 used in the takeoff performance calculations. 皇冠体育app crew noticed the incorrect flap setting after takeoff, whilst attempting to retract the flaps in the normal sequence. Calculations performed afterwards indicated that on this occasion the aircraft鈥檚 performance on takeoff was adequate with flap 1 set. However, it is not safe to take off without confirming that flap is set correctly, because the aircraft may not achieve the required performance.

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Published 8 February 2024