AC 91-89

Advisory circular · Mitsubishi MU-2B Training Program

Approved
July 22, 2016
Last reviewed
August 5, 2024
Family
AC 91-89 · 1 version
14 CFR parts
61, 91, 135, 141, 142

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed August 14, 2026.

Show pages 37–48
Page 49OCROpen in PDF

Appendix A Figure A-10 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

APPROACH TO STALL

LANDING CONFIGURATION GEAR DOWN - FULL FLAPS

CLEAR AREA, CONDITION LEVERS

T/O AND LAND, SYNC OFF 120/130 KCAS, AIRCRAFT TRIMMED ON STALL RECOGNITION (STICK SHAKER OR "ONSET® BUFFET), CALL THE "STALL', * OPTIONAL AUTOPILOT ON FOR *DISCONNECT AUTOPILOT IF ON,

AIRCRAFT WITHOUT AUTOMATIC IMMEDIATELY AND SIMULTANEOUSLY REDUCE ANGLE OF ATTACK UNTIL STALL AUTOPILOT DISCONNECT. FLAPS 20°, GEAR DOWN, AS NECESSARY. STALL WARNING MAY ACTIVATE AT 4 TO 9 KCAS ABOVE STALL. INDICATIONS CEASE AND LEVEL WINGS IF IN A BANK. ACCELERATE, INCREASE POWER SLOWLY AS APPROPRIATE, FLAPS 20°, POSITIVE RATE, GEAR UP, TRIM FLAPS UP, POWER AS A/S 140 KCAS MIN, REQUIRED (20% TORQUE)

CONTINUE TO APPLY AFT AFTER A SAFE FLIGHT CONDITION FLAPS FULL 20% A/S 120 KCAS, CONTROL, WHILE MAINTAINING ALTITUDE UNTIL FIRST HAS BEEN ACHIEVED AND AS A/S INCREASES ABOVE 120 KCAS, TORQUE, INDICATION OF A STALL.. BEGIN CLIMB TO ORIGINAL MAINTAIN LEVEL * OR ALLOW AUTOPILOT TO ALTITUDE AND/OR FLIGHTPATH.

FLIGHT, TRIM CONTINUE TO TRIM NOSE UP FOR 120 KCAS WHILE MAINTAINING ALTITUDE A/S 130 KCAS, IF FLAPS UNTIL FIRST INDICATION OF A 20°, RETRACT FLAPS TO STALL.. 5° INCREASE PITCH TO APPROX. 10°.

STALL SPEEDS FLAPS SET UP 5 20 40 INSTRUCTOR NOTE:

GR.WT. ADVISORY CIRCULAR 120-109 STATES THAT 7,000 /85 * 180 * 172 * 164 * PERFORMANCE OF STALL MANEUVERS 7,500 188 * 182 * /74 * 166 * DURING TRAINING SHOULD INCLUDE BOTH 9,000 8,000 8,500 93/96 * /91 * /93 * 87/90 * 188 * 185 * 76/81 * /76 * /79 * 72/72 * /68 * /70 * 5,000 AGL MIN. ALT. TAUGHT HOW TO RESPOND APPROPRIATELY AUTOPILOT ENGAGED. PILOTS SHOULD BE MANUAL FLIGHT AND FLIGHT WITH 9,500 95/99 * 90/93 * 79/83 * 74/74 * TO THE STARTLE FACTOR WHEN 10,000 98/101* 92/95 * 81/85 * 75/76 * ENCOUNTERING AN UNEXPECTED STALL..

10,470 /104 * /98 * 188 * 178 * 10,500 101/ 94/ 83/ 771 11,000 103/ 96/ 85/ 79/ STALL TRAINING PROCEDURES WITH THE 11,575 106/ 99/ 87/ 81/ AUTOPILOT ENGAGED ARE NOTED WITH AN + P, BOL ASTERISK* A-43

Page 50OCROpen in PDF

Appendix A Figure A-11 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

ACCELERATED STALLS CLEAR AREA, CONDITION CLEAN, A/S 115 KCAS, INITIATE PROGRESSIVE BANK TOWARD A LEVERS T/O AND LAND, A/C POWER AND TRIM 60° BANK ANGLE

SYNC OFF FOR LEVEL FLIGHT

APPLY BACKPRESSURE TO

MAINTAIN ALTITUDE UNTIL

FIRST INDICATION OF A STALL OR *ONSET® BUFFET.

* THIS MANEUVER SHOULD ALSO BE

ACCOMPLISHED IN THE LANDING CONFIGURATION WITH GEAR DOWN, FLAPS * 140 KCAS * 125 KCAS 209, A/S 100KCAS TRIMMED FLAPS UP FLAPS TO 5° * POSITIVE

RATE, GEAR UP ACCELERATE TO 140 KCAS, ON STALL RECOGNITION (STICK SHAKER OR POWER AS REQUIRED *ONSET BUFFET), CALL THE "STALL*

AFTER A SAFE IMMEDIATELY AND SIMULTANEOUSLY

STALL SPEEDS (APPROXIMATE) FLIGHT CONDITION REDUCE ANGLE OF ATTACK UNTIL STALL

AT MAXIMUM GROSS TAKEOFF WEIGHT HAS BEEN INDICATIONS CEASE, LEVEL WINGS,

N, MARQ / P, SOL ACHIEVED AND AS ACCELERATE, INCREASE POWER SLOWLY AS A/S INCREASES APPROPRIATE, TRIM AS NECESSARY.

ANGLE OF BANK 10 20 30 40 50 60 ABOVE 120 KCAS, STALL WARNING MAY ACTIVATE AT 4 TO 9 FLAPS BEGIN CLIMB TO KCAS ABOVE STALL.

UP 107/104* 109/108* 113/112* 120/119* 131/130* 148/146* ORIGINAL ALTITUDE AND/OR 5° 99/ 98* 102/101* 106/105* 113/112* 123/122* 138/138* FLIGHTPATH.

20° 87/ 88* 89/ 90* 93/ 94* 98/100* 108/109* 122/123* 40° 82/ 79* 84/ 80* 87/ 84* 92/ 90* 101/ 98* 113/110* *P. SOL A-44

Page 51OCROpen in PDF

Appendix A Figure A-12 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

EMERGENCY DESCENT (LOW SPEED) *CLEAR AREA, CRUISE POWER LEVERS F/I. CONDITION LEVERS T/O AND LAND, CONFIGURATION START SYNC OFF. FLAPS 5°, AT 175KCAS, & GEAR DOWN AT ASSIGNED ALTITUDE. (170 KCAS SOL. P, 175 KCAS MARQ, N) FLAPS 20° AT A/S 150 KCAS MIN. 155 KCAS; FLAPS 40° AT 120 KCAS SIMULATE EXPLOSIVE ESTABLISH DESCENT IN A 30° BANK, 155 KCAS MAX.

DECOMPRESSION AT INITIAL NOSE DOWN IS APPROX 20° UNTIL REACHING ASSIGNED ALTITUDE. 155 KCAS. THEN RAISE NOSE TO MAINTAIN SPEED OXYGEN MASKS ON.

"DECLARE EMERGENCY* *WHILE CLEARING THE AREA, AFTER ESTABLISHING DESCENT, ROLL CHECK 1000 FT COORDINATE WITH AIR TRAFFIC CONTROL WINGS LEVEL. CONTINUE DESCENT ON ABOVE LEVEL TO CLEAR TRAFFIC AT LOWER ALTITUDES. STEADY HEADING OR AS REQUIRED BY ATC. OFF ALTITUDE

GEAR/FLAP SPEEDS GEAR 175 KCAS N. MARQ 170 KCAS P, SOL 500' ABOVE, START LEVEL OFF FLAPS 5ª 175 KCAS 175 KCAS FLAPS 20° 155 KCAS 155 KCAS FLAPS 40° 120 KCAS 120 KCAS VEE FLAPS 40° 155 KCAS 155 KCAS COMPLETE EXERCISE AT ASSIGNED ALTITUDE REDUCE TO 120 KCAS AND CLEAN UP A/C. **DO NOT RAISE FLAPS UNTIL A/C IS BELOW 120 KCAS A-45

Page 52OCROpen in PDF

Appendix A Figure A-13 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

EMERGENCY DESCENT (HIGH SPEED) *CLEAR AREA, CRUISE POWER LEVERS F/I. NOTE

CONFIGURATION START CONDITION LEVERS T/O AT ASSIGNED ALTITUDE. AND LAND SYNC OFF. DECREASE INDICATED A/S 150 KCAS MIN. AIRSPEED BY 5 KCAS BELOW 250 KCAS, FOR EACH 1,000 FT ABOVE 21,300 FT

SIMULATE EXPLOSIVE

DECOMPRESSION AT DECLARE EMERGENCY ASSIGNED ALTITUDE. OXYGEN MASKS ON. ESTABLISH DESCENT IN A 30° BANK, ACCELERATING TO VIO (250 KCAS). INITIAL 15-20° NOSE DOWN, REDUCING TO APPROX. 8° NOSE DOWN AS A/S APPROACHES V MO (250 KCAS).

CHECK 1000 FT COORDINATE WITH AIR TRAFFIC CONTROL *WHILE CLEARING THE AREA, LEVEL, CONTINUE DESCENT ON STEADY HEADING AFTER ESTABLISHING DESCENT, KEEP WINGS ABOVE LEVEL OFF ALTITUDE TO CLEAR TRAFFIC AT LOWER ALTITUDES. OR AS REQUIRED BY ATC 700 FT ABOVE, START

LEVEL OFF COMPLETE EXERCISE AT ASSIGNED ALTITUDE.

REDUCE SPEED TO 200 KCAS A-46

Page 53OCROpen in PDF

Appendix A Figure A-14 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

UNUSUAL ATTITUDE RECOVERY (NOSE HIGH) UNLOAD AND INITIATE ROLL TOWARD 60° BANK

USING SPOILER AND RUDDER AND ALLOW NOSE TO

FALL THROUGH THE HORIZON

CAUTION

DO NOT G LOAD WINGS DURING BANKING MANEUVER TO PREVENT AN ACCELERATED STALL.

*IF ATOR NEAR STALL BEFORE RECOVERY, DO NOT USE RUDDER TO INITIATE ROLL.

UPON RECOGNITION OF ANOSE

HIGH UNUSUAL ATTITUDE, WHEN NOSE LOW, ROLL WINGS

POWER TO TAKEOFF LEVEL, REDUCE POWER TO

FLIGHT IDLE, AND COMMENCE A

WINGS LEVEL PULL UP TO A LEVEL FLIGHT ATTITUDE.

*CLEAR AREA

ONCE LEVEL, ADD POWER

TO MAINTAIN LEVEL FLIGHT *WHILE CLEARING THE AREA, COORDINATE

WITH AIR TRAFFIC CONTROL TO CLEAR TRAFFIC BOTH ABOVE AND BELOW YOUR ALTITUDE.

INSTRUCTOR NOTE

THE INSTRUCTOR SHOULD INTIATE THE UNUSUAL ATTITUDE NOT TO EXCEED 30° OF PITCH AND/OR 60° OF BANK AND USE POSITIVE

CONTROL TO TRANSFER CONTROL TO THE

STUDENT FOR RECOVERY A-47

Page 54OCROpen in PDF

Appendix A Figure A-15 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

UNUSUAL ATTITUDE RECOVERY (NOSE LOW)

UPON RECOGNITION OF A NOSE LOW

UNUSUAL ATTITUDE, REDUCE POWER

TO FLIGHT IDLE, INITIATE A ROLL

TOWARD WINGS LEVEL IF IN A BANK, ONCE WINGS ARE LEVEL IN NOSE LOW *CLEAR AREA AND MAINTAIN NOSE LOW PITCH ATTITUDE, COMMENCE A WINGS LEVEL ATTITUDE WHILE LEVELING WINGS PULL UP TO A LEVEL FLIGHT ATTITUDE.

CAUTION

DO NOT G LOAD AIRCRAFT UNTIL WINGS

ARE LEVEL TO PREVENT AN ACCELERATED STALL AND UNEVEN G LOADS ON WING.

IF AIRSPEED IS ATOR NEAR Vmo, DO NOT

USE ABRUPT CONTROL MOVEMENTS DURING RECOVERY.

*WHILE CLEARING THE AREA, COORDINATE WITH

AIR TRAFFIC CONTROL THE CLEAR TRAFFIC BOTH ABOVE AND BELOW YOUR ALTITUDE. ONCE LEVEL, ADD POWER

TO MAINTAIN LEVEL FLIGHT

INSTRUCTOR NOTE

THE INSTRUCTOR SHOULD INITIATE THE UNUSUAL ATTITUDE NOT TO EXCEED 30° OF PITCH AND/OR 60° OF BANK AND USE POSITIVE

CONTROL TO TRANSFER CONTROL TO THE

STUDENT FOR RECOVERY A-48

Page 55OCROpen in PDF

Appendix A Figure A-16 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A) NORMAL LANDING (20°or 40° FLAPS) TOUCHDOWN. POWER LEVERS RETARD TO FLIGHT IDLE STOP. THEN RETARD BOTH

POWER LEVERS RETARD TO GROUND IDLE, CHECK BOTH PROPS BETA. THEN REVERSE APPROXIMATELY AND BRAKING AS REQUIRED.

1500 FT AGL THRESHOLD (10%-20% TORQUE) Vref PARALLEL TO RUNWAY MAINTAIN TRACK FINAL CHECK. FLAPS 20°or 40°.

A/S SLOWING TO Vref.

CHECK SINK RATE 500-600 FPM

COMPLETE DESCENT AND

APPROACH CHECKLISTS A/S 120 KCAS MIN DESCENT 500-600 FPM A/S 150 KCAS MIN. APPROACH BY STABILIZED (20%-25% TORQUE) (25%-30% TORQUE) 500 agi LANDING APPROACH SPEEDS - Vref FLAPS 5°

1.3 VS1 1.5 VS1 WEIGHT FLAPS 20° FLAPS 40° 7,500 LBS / 96 * / 99 * LANDING ASSURED, GEAR DOWN .

8,000 LBS / 99 * /102 * A/S 140 KCAS MIN.

8,500 LBS 99 / 102 * 105/106 * COMPLETE LANDING CHECKLIST 9,000 LBS 100 / 105 * 108/109 * 9,500 LBS 102 / 108 * 111/112 *

9.955 LBS 105 / 111* 114/115= FLAPS 20°, A/S 120-130 KCAS 10,000 LBS 500 FPM SINK RATE 10,500 LBS 108 / 116 / (APPROX 25% TORQUE) 11,025 LBS 110 / 119 / * P. SOL A-49

Page 56OCROpen in PDF

Appendix A Figure A-17 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

GO AROUND - REJECTED LANDING

AFTER GEAR IS FULLY RETRACTED, A/S ACCELERATE TO 130 KCAS, IF FLAPS 20°, RETRACT TO DESIRED CLIMB SPEED FLAPS 5°, INCREASE PITCH TO 10° COMPLETE AFTER T/O

AND CLIMB CHECKLIST A/S 140 KCAS, WHEN LANDING REJECTED, FLAPS UP.

APPLY MAX POWER, PITCH 8° UP AND SELECT FLAPS 20° IF 40°

PREVIOUSLY SELECTED

POSITIVE RATE,,

GEAR UP, IF FLAPS APPROACH, NORMAL 20°, 113 KCAS MIN., 120 KCAS MIN. IF FLAPS 5°,

STABILIZED AND

CONFIGURED FOR

LANDING A-50

Page 57OCROpen in PDF

Appendix A Figure A-18 CAUTION MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

DO NOT SELECT REVERSE UNTIL NO FLAP OR 5° FLAP LANDING (ABNORMAL PROCEDURE) BELOW 90 KCAS

WITH NOSE WHEEL ON CHECK BOTH PROPS BETA. BRAKES AND NOTE GROUND REVERSE AS REQUIRED. NOTE: BETA MAY LANDING DISTANCE NOT BE AVAILABLE UNTIL BELOW 90 KCAS WILL INCREASE

APPROXIMATELY APPROXIMATELY 1500 FT AGL LEVERS SLOWLY RETARD TOUCHDOWN - POWER 30%

TO FLIGHT IDLE STOP THRESHOLD (10%-20% TORQUE) NO FLAP Vref 1.25 VS1, BUT NOT COMPLETE DESCENT AND PARALLEL TO RUNWAY MAINTAIN TRACK BELOW 115 KCAS (SEE CHART) FINAL CHECK. A/S

APPROACH CHECKLISTS

SLOWING TO NO FLAP Vref. 115 KCAS MIN.

(25%-30% TORQUE) A/S 150 KCAS MIN. APPROACH BY STABILIZED 500 agl

1.5 MILES M NO FLAP Vref 1.25 Vs1 BUT NOT BELOW 115KCAS (USE FOR FLAPS UP OR 5°) CHECK 7,500 UP / 115* 5° / 115* LANDING ASSURED, GEAR DOWN A/S 140 KCAS MIN, SINK RATE 8,000 / 115* / 115* COMPLETE LANDING CHECKLIST 8,500 / 116* / 115* 9,000 116 / 120* 115 / 115* FLAPS 0° OR 5°.

9,500 9,995 119 / 123* / 126* 115 / 117* / 120* 500-600 FPM SINK RATE. A/S 140 KCAS MIN.

10,000 123 / 115 / (APPROX 25%-30% TORQUE) 10,500 127 / 118 / 11,025 129 / 121 / "SOL. P A-51

Page 58OCROpen in PDF

Appendix A Figure A-19 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

CAUTION ONE ENGINE INOPERATIVE LANDING

ANTICIPATE

SWERVE TOWARD WHILE MAINTAINING TRACK WITH

OPERATING RUDDER, MOVE OPERATING CAUTION WARNING

ENGINE WHEN ENGINE POWER LEVER GROUND ENTERING BETA IDLE, CHECK PROP BETA., DO NOT USE SINGLE DO NOT ATTEMPT A

REVERSE AND BRAKES AS TOUCHDOWN, ENGINE REVERSE GO-AROUND WITH REQUIRED. OPERATING ENGINE THRUST WITH THE GEAR DOWN BELOW APPROXIMATELY POWER LEVER SLOWLY SIMULATED FAILED 400' AGL OR AFTER 1500 FT AGL RETARD TO FLIGHT IDLE ENGINE POWER 20° FLAPS ARE STOP LEVER ABOVE FLIGHT SELECTED.

IDLE.

THRESHOLD, (10%-20% TORQUE). Vref.

PARALLEL TO RUNWAY MAINTAIN TRACK A/S 110 KCAS (MARQ, N). 105 KCAS (SOL, P). CHECK SINK RATE. 300-600 FPM FINAL CHECK. FLAPS 20°.

A/S Vxse MIN. (SEE CHART)

COMPLETE DESCENT AND COMPLETE LANDING CHECKLIST,

APPROACH CHECKLISTS AND RUDDER TRIM CENTERED, HOLD REVIEW SINGLE ENGINE LANDING BALL IN CENTER WITH RUDDER.

CHECKLIST 140 KCAS (MARQ, N) MIN, 135 KCAS (SOL, P) MIN (APPROX 50%-55% TORQUE) A/S 150 KCAS _ AS REQUIRED APPROACH BY STABILIZED 500 agi

N, MARQ/P,SOL FLAP SETTING Vxse (KCAS) Vyse (KCAS) FLAPS 5° A/S 140 KCAS CHECK UP 140 / 135 * 150 / 150 * (130 KCAS MIN) SINK RATE 50 130 / 130 * 140 / 140 * 500 - 600 20° 125 / 125 * 135 / 130 * FEET PER MINUTE *P, SOL

LANDING ASSURED CHECK GLIDE PATH, GEAR DOWN.

(APPROX 40% TORQUE) A-52

Page 59OCROpen in PDF

Appendix A Figure A-20 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

CROSSWIND LANDING

DEMONSTRATED

CROSSWIND

ALL MODELS TAKEOFF 22 KCAS LANDING 18 KCAS

• WIND • WIND

AIRCRAFT WILL BE FLOWN DOWN AN EXTENSION OF

THE RUNWAY CENTER LINE WITH DRIFT CORRECTION

ESTABLISHED SUFFICIENTLY IN ADVANCE TO PERMIT

CENTER LINE TO BE FLOWN WITH ONLY MINOR

COORDINATED CORRECTIONS INCREASE VrefFOR CROSSWIND LANDING BY ONE-

HALF THE STEADY WIND SPEED PLUS ONE-HALF THE GUST SPEED NOT TO EXCEED Vref PLUS 10 KCAS.

• WIND

PRIOR TO TOUCHDOWN, THE UPWIND WING IS LOWERED AND SMOOTHLY MODULATED. OPPOSITE

RUDDER IS APPLIED SO THAT AIRCRAFT PATH CONTINUES DOWN RUNWAY CENTERLINE. THE

AIRCRAFT SHOULD NOT BE ALLOWED TO DEVELOP ANY TENDENCY TO DRIFT DOWNWIND.

NOTE: RUDDERS CENTERED BEFORE NOSE WHEEL TOUCHDOWN. SPOILERS INTO WIND AS NECESSARY

TO KEEP WINGS LEVEL

• WIND A-53

Page 60OCROpen in PDF

Appendix A Figure A-21 MU-2B MARQUISE (-60), SOLITAIRE (-40), N (-36A), P (-26A)

ILS, LPV, RNP, LNAV/NAV APPROACH COMPLETE DESCENT AND APPROACH A/S 140 KCAS MIN. (20%-25% TORQUE), CHECKLISTS. A/S 150 KCAS (140 KCAS MIN) DESCEND 500 FPM TO PROCEDURE REVIEW APPROACH PLATE. RADIOS: TUNE & TURN OR OTHER APPROACH SEGMENT IDENTIFY. CHECK FINAL APPROACH FIX ALTITUDE ALTITUDE, MARKER BEACON RECENER *ON® FLAPS 5°, 140 KCAS MIN.

(25%-30% TORQUE) LANDING APPROACH SPEEDS - Vref

1.3 Vs1 1.5 Vs1 WEIGHT FLAPS 20° FLAPS 40° 7,500 LBS / 96 * / 99 * 8,000 LBS / 99 * /102 * A/S 140 KCAS MIN.

8,500 LBS 99 / 102 * 105/106: (25%-30% TORQUE) 9,000 LBS 100 / 105 * 108/109 * 9,500 LBS 102 / 108 * 111/112* MISSED APPROACH:

9,955 LBS / 111 * /115 * CONTINUE WITH LANDING ASSURED, CHECK GEAR 10,000 LBS 105 / 114 / MISSED APPROACH DOWN, FLAPS 20° APPROACHING 10,500 LBS 108 / 116 / PROFILE GLIDE SLOPE (ONE DOT BELOW G/S), 11,025 LBS 110 / 119 / A/S 120 KCAS MIN.

+ P. BOL

COMPLETE LANDING CHECKLIST (APPROX 25% TORQUE) FINAL CHECK. FLAPS 20° (OR 40*) DH IF DESIRED, BELOW 120 KCAS TOUCHDOWN: POWER LEVERS RETARD TO FLIGHT IDLE STOP. POWER LEVERS RETARD TO GROUND IDLE, CHECK BOTH PROPS BETA. REVERSE AND BRAKES AS REQUIRED.

A-54