DOC AIRBUS | AMM A320FWind Limitations During Engine Ground Operations [CFML]
TASK 71-00-00-869-802-A
Wind Limitations During Engine Ground Operations
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information
3. Job Set-up
Subtask 71-00-00-869-406-A
Subtask 71-00-00-869-407-A
[Rev.10 from 2021]
2026.04.01 12:57:38 UTC
Wind Limitations During Engine Ground Operations
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
Ground Wind EnvelopeSubtask 71-00-00-869-406-A
A. Not Applicable
4. ProcedureSubtask 71-00-00-869-407-A
A. Wind limitations during engine ground operations
(1) Static ground operation is restricted to power settings of 75 percent N1 RPM and below with crosswinds exceeding 20 knots or with tailwind of 5 to 15 knots.
(2) Static ground operation is restricted settings of 100 percent N1 RPM and below with crosswinds of 0 to 20 knots or tailwinds of 0 to 5 knots.
(3) Position the airplane to obey the preferred wind direction and wind velocity limits for ground operations.
(4) Tailwinds, or winds with tailwind components, adversely affect ground operation of engines.
(6) At power settings of approximately 90 percent N1 RPM an above, crosswind can cause a fan stall. The onset of fan tip stall during stable engine operation can be identified by the following conditions:
(a) The N1 speed (RPM) increases quickly.
(b) The airplane vibration increases.
(c) You can hear a pulsating or a blowtorch type of sound that continuously starts and stops.
(1) Static ground operation is restricted to power settings of 75 percent N1 RPM and below with crosswinds exceeding 20 knots or with tailwind of 5 to 15 knots.
(2) Static ground operation is restricted settings of 100 percent N1 RPM and below with crosswinds of 0 to 20 knots or tailwinds of 0 to 5 knots.
(3) Position the airplane to obey the preferred wind direction and wind velocity limits for ground operations.
(4) Tailwinds, or winds with tailwind components, adversely affect ground operation of engines.
NOTE: EEC logic may prevent engine start with high tailwind.
(5) During starting, tailwinds can cause failed start. (6) At power settings of approximately 90 percent N1 RPM an above, crosswind can cause a fan stall. The onset of fan tip stall during stable engine operation can be identified by the following conditions:
(a) The N1 speed (RPM) increases quickly.
(b) The airplane vibration increases.
(c) You can hear a pulsating or a blowtorch type of sound that continuously starts and stops.
NOTE: Whenever a fan tip stall is imminent or has occurred, rapid retardation of the thrust lever will prevent or permit recovery from the stall.
(7) Obey the cowl limitations during ground operations: - Fan Cowl open with two HOR: wind limitation at 45 KTS
- Fan Cowl open with one HOR: wind limitation at 40 KTS
- Opening/closing of the Fan Cowl with two operators: wind limitation at 40 KTS
- Fan Cowl open with one operator: wind limitation at 10 KTS