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Learjet 31A AFM Limitations
FM-121 1-9
FAA Approved 7-25-91
AIRSPEED/MACH LIMITS (Cont)
MINIMUM CONTROL SPEED GROUND VMCG
VMCG is a function of altitude and temperature. The speed shown is a
maximum, which occurs at the maximum thrust point (Sea Level, 68° F
[20° C]). Section V Performance Charts account for the appropriate
values.
VMCG (Rudder Boost System Off)............................................... 109 KIAS
VMCG (Rudder Boost System On) ............................................... 100 KIAS
CRITICAL ENGINE FAILURE SPEED V1
Refer to applicable figure entitled TAKEOFF SPEEDS in Section V.
ROTATION SPEED VR
Refer to applicable figure entitled TAKEOFF SPEEDS in Section V.
TAKEOFF SAFETY SPEED V2
Refer to applicable figure entitled TAKEOFF SPEEDS in Section V.
Publication Affected:
1. 24D (FM-009)
2.24E (FM-011)
3.24F (FM012)
4. 25B/C (FM-016)
5. 25D/F (FM-018)
Aircraft Affected:
The following aircraft serials are affected:
* Whencabin outflow valve or safety valve has been replaced after
January 1, 1989.
Description of Change: Revises Maximum Operating Altitude to
41000 Ft.
Filing Instructions:
TEMPORARYFLIGHT MANUAL CHANGE
The following Learjet AFM's are affected:
6.28/29 (FM100)
11. 35A/36A (FM-102)
7.31 W-112)
12. 35A/36A(FM-108)
8.31 Singapore (FM-122) 13.55 (FM103)
9. 31A (FM-121)
14.55B (Fm-no)
10. 35/36 (FM-019)
15.55C (FM-114)
Insert this Temporary Change in the appropriate
AFM as indicated below and retain until
full compliance with SB24/25-21-4, or SB28/
29-21-8, or SB31-21-6, or SB35/36-21-19, or
SB55-21-10 (as applicable).
Insert Adjacent Insert Adjacent
AFM to Page AFM to Page
1. 24D 1-4 9.31A 1-10
2.24E 1-3A 10.35/36 1-18
3.24F 1-4 11. 35A/36A (FC-200) 1-14
4. 25B/C 1-4 12 35A/36A(FC-530) 1-12
5. 25D/F 1-12 13.55 1-10
6.28/29 1-11 14.55B 1-9
7.31 1-10 15.5K 1-10
8.31 Singapore 1-9
1. 24-218,24-230 thru 24-357* 7. 35-002 thru 35-645*
2.25-061,25-067 thru 25-373* 8. 35-646 thru 35-676
3.28-001 thru 28-005* 9. 36-002 thru 36-058*
4.29-001 thru 29-004* 10. 36-059 thru 36-063
5.31-002thru 31-006* 11. 55-003 thru 55-136*
6.31-007thru 31-087 1255-137 thrn 55-147
Addthefollowing text to the affected AFM's.
Maximum operating altitude is limited to 41000 Ft. All references
to altitudes above 41000 Ft. should be disregarded.
FAA J
APPROVED
forEVERETTWPTrfMAN, MANAGER
AIRCRAFT CERTIFICATIONOFFICE
FEDERALAVIATIONADMINISTRATION
WICfIITA, KANSAS
Page 2of 2
TFM.94-15
Limitations Learjet 31A AFM
1-10 FM-121
FAA Approved 7-25-91
Change 21
OPERATIONAL LIMITS/REQUIREMENTS
TAKEOFF
Maximum Pressure Altitude ...................................................... 10,000 feet
Ambient Temperature ...................................................Refer to Figure 1-4
Tailwind Component....................................................................... 10 knots
Runway Conditions
Takeoff is limited to paved runways.
Runway water/slush accumulation....................... 3/4 inch (19 mm)
Fuel Computers....................................................................................ON ❶
Engine Sync..............................................................................................OFF
Trim ........................................................................ All axes set for takeoff
Fuel Load............................................Wings balanced within 200 pounds
The following must be checked and operational:
ENROUTE
Maximum Pressure Altitude
• With spoilers operative..................................................... 51,000 feet
• With spoilers inoperative ................................................. 41,000 feet
Ambient Temperature ...................................................Refer to Figure 1-4
On aircraft 31-035 thru 31-190, Cooling System...........OFF above FL 350
Fuel Load............................................Wings balanced within 500 pounds
LANDING
Maximum Pressure Altitude ...................................................... 10,000 feet
Ambient Temperature ...................................................Refer to Figure 1-4
Tailwind Component....................................................................... 10 knots
Runway Conditions
Landing is limited to paved runways.
Runway water/slush accumulation....................... 3/4 inch (19 mm)
Pressurization ...........................................................Cabin not pressurized
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