originally, without any braking to speak of -time tags 30 to 39 -, they had a deceleration of 1m/s/s, therefore due to aerodynamic drag and 1 T/R only.
Then between Tt 40 and 48, the effects of a skid with a working antiskid system (brake pressure is way too low for the pedal position), but they still achieved 1.3 to 1.6 m/s/s.
On reaching a less slippery surface,- Tt 49 to 15 -, a deceleration of 2m/s/s was reached, still with the antiskid modulation but now, max brake pressure is achieved.
Lemurian,
Do you have an average EPR for the right engine for those time frames ?
P.S.: Should we discard a below average braking system effectiveness ? One of the last maintenance reports for the
PR-MBK, if I am not wrong, is related to problems in the braking system.
Editing: Right Engine EPR in the TransAsia accident: 1.08
Right Engine EPR in the PR-MBK accident: 1.18