The crew was aware that they were higher than the standard arrival.
The localizer was captured about 6nm out at 5700 feet MSL, LOC Mode and FLIGHT LEVEL CHANGE were active with 3400 feet selected as target altitude, as per approach chart 3400 feet should be maintained from 5.4nm to 3.2nm before the Bishkek VOR.
The aircraft crossed the final approach fix at 4.0nm before the VOR at 4000 feet, 2.7nm out the flaps were selected to 25 degrees at 190 KIAS. The aircraft levelled off at 3400 feet 1.7nm before the runway VOR and ALT HOLD activated. The glideslope deviation indication showed a full down deflection, although the glideslope was armed, the glideslope capture was not activated. The aircraft overflew the LOM (outer marker), however, the cockpit voice recorder did not capture an aural signal, the LOM was indicated to both pilots on the PFD. Tower cleared the flight to land reporting wind calm, RVR: 400 m (threshold), 325 m (midpoint), 400 m (end), vertical visibility 160 ft.
0.3nm before the VOR the flaps were selected to 25 degrees at 175 KIAS, 2 seconds later glideslope capture activated at a glideslope angle of 9 degrees (instead of the certified 3 degrees) and the autopilot initiated a descent at 1425 fpm. 6 seconds after the glideslope capture the announciators showed LAND3.
The aircraft overflew the LMM (Middle Marker) at 3300 feet instead of 2290 feet, no aural signal was recorded however the Middle Marker was signalled on both PFDs.
The glideslope deviation indicator fluctuated between -4 and +4 dots. Descending through 3150 feet MSL the crew received "AP CAUTION" and "FMA FAULT 2" indications, the indications continued until initiated of flare, almost until end of recording.
The aircraft continued to descend at 160 KIAS, the autopilot status changed from LAND3 to LAND2, which was called out by the crew, the EGPWS glideslope alert triggered 5 times.
Aus dem Bericht.
Frage:
Was ist Land1 Land2 , Land3 ?
Warum wurde der GS in -/+ 4 angezeigt ?
"localizer was captured", heißt das nicht, das Flugzeug ist auf dem Gleitweg , oder versucht dahin zu regeln?
The aircraft overflew the LOM (outer marker), however, the cockpit voice recorder did not capture an aural signal
Warum hat es keine akustische Warnung gegeben?
Da sind immer noch Fragen offen.
Grüße Frank