The following items require a go-around from a CAT II approach:
.
A failure that causes the autopilot to disconnect prior to DA(H).
.
Failure of a required ground facilities component prior to DA(H).
.
Failure of any required aircraft equipment prior to DA(H).
.
Winds out of limits or reports of windshear greater than 10 knots.
.
Exceeding a performance limit in the decision regime.
.
Insufficient visual reference with the CAT II lighting system at DA(H) to safely continue the approach by visual reference alone.
.
After passing DA(H): Insufficient visual reference with the CAT II lighting system, or a reduction in visual reference which prevents safely continuing the approach by visual reference alone.
.
The landing cannot be safely accomplished within the touchdown zone.
INTENTIONALLY LEFT BLANK INTENTIONALLY LEFT BLANK
Missed Approach
If upon reaching decision height as indicated by either the baro altimeter, radio altimeter or inner marker (as appropriate), the Captain has not called out, “I HAVE THE AIRCRAFT,” the First Officer will execute a missed approach and simultaneously call out, “MINIMUMS, GOING AROUND.”
Should a missed approach become necessary after the Captain has called “I HAVE THE AIRCRAFT” and taken control, the Captain will fly the missed approach.
Refer to MISSED APPROACH / GO AROUND PROCEDURE, this section.
Under no circumstances will a landing be attempted after a go-around has been initiated. If unable to touchdown in the touchdown zone, go around.
Category II/Coupled Approach Aircraft Logbook Write-Ups
Whenever a CAT II/Coupled approach is unsuccessful due to equipment malfunction, a logbook entry is required. The entry should carefully explain the malfunction using the following guidelines to assist maintenance in correcting the discrepancy. Specify the following items in the aircraft logbook entry:
Which DFGS was in use What approach mode was in use Whether autothrottle was in use Which ILS receiver was in use Which RA or marker was inoperative If yaw damper was inoperative If pitch trim was inoperative Altitude at disengagement Verify all components engaged properly
MONITORED APPROACH BRIEFING GUIDE
I. CALL OUTS FOR MONITORED APPROACHES
CAPTAIN FIRST OFFICER “1,000", (above TDZE) “500", “400", “300" (if Cat II approach), 100 feet above DA(H): “APPROACHING MINIMUMS, I’M GOING HEADS UP” At decision to pass DA(H): “I HAVE THE AIRCRAFT” At 500 feet (if autoland) “AUTOLAND” At DA(H) If Captain has not taken control: “MINIMUMS, GOING AROUND” “100” or “ALIGN” (if autoland) “50” “30” “20” “10” If aircraft deviates from centerline, either pilot call “CENTERLINE”
II. APPROACH LIMITS - CAT II
PERFORMANCE LIMITS (500 Feet to Flare) Glideslope deviation not to exceed 1 dot. Localizer deviation not to exceed 1/3 dot. Airspeed + or - 5 kts of target speed. Maximum rate of decent is 1,000 FPM. Maximum stabilized crab angle is 10°. No new warning lights or flags allowed. Raw data must match with computed data. No GPWS activations. WIND LIMITS (Including Gusts) Maximum headwind- 20 kts. Maximum crosswind - 10 kts. Maximum tailwind - 10 kts. No LLWAS. No reported windshear gain or loss greater than 10kts.
MANDATORY MISSED APPROACH
Below 500 Feet to Above DA(H): Below DA(H):
Change in approach mode. Out of a normal landing position.
Loss of a required aircraft component. Loss of required visual references.
Loss of a required ground component. Exceeding a performance limit prior to
Exceeding a performance limit. flare. Not on the runway in the TDZ.
MISSED APPROACH PROCEDURES
If at or above DA(H) and any of the above parameters are exceeded the F/O will initiate the missed approach. If at DA(H) the Captain has not made the “I HAVE THE AIRCRAFT” call the F/O will initiate the missed approach. After the Captain calls “I HAVE THE AIRCRAFT” the Captain will execute the missed approach if required. The autopilot GA mode should be used unless the autopilot has been disengaged. . Advance throttles positively to go-around thrust while activating TOGA buttons. . Call: “FLAPS 15, CHECK MAX POWER.” . Ensure aircraft is rotated to go-around attitude of 15° - 20° (by autopilot or manually). . With a positive rate of climb: Call: “POSITIVE RATE - GEAR UP - ALTITUDE ARM.” . Climb at Go-Around speed on Landing Speed Card. . Call: “HEADING SELECT” (when required). Under no circumstances will a landing be attempted after a go-around is initiated. Do not attempt go-around after reverse thrust has been initiated.
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：MD-80 Flight Manual 麥道80飛行手冊 2(20)
