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An airbus 320 captain reports a conflict between the flight manual autothrust operation and actual operation.
| Attributes | |
| ACN | 510714 |
| Time | |
| Date | 200105 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ric.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 50 flight time total : 15000 flight time type : 84 |
| ASRS Report | 510714 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : multi engine pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : auto thrust warning light other flight crewa other flight crewb |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Flight Crew Human Performance Aircraft Chart Or Publication |
| Primary Problem | Chart Or Publication |
| Situations | |
| Publication | FLT MANUAL |
Narrative:
Autothrust light would not go out after engine start. Called ZZZ maintenance and was referred to aircraft flight manual page which has a note that if this occurs after engine start that it is ok and will go away after takeoff (or words to that effect -- I do not have my manual here). We proceeded accordingly and after takeoff warning ECAM remained, autothrottles would not operate. The procedure in the manual is incorrect and caused me to depart with an inoperative system, which remained inoperative throughout the remainder of the flight. This procedure needs to be modified. Callback conversation with reporter revealed the following information: the reporter stated the autothrust warning light did not go out on takeoff and resulted in no autothrust system operation. The reporter said all thrust settings were required to be made manually. The reporter said a request for manual revision has been submitted to the operations department.
Original NASA ASRS Text
Title: AN AIRBUS 320 CAPT RPTS A CONFLICT BTWN THE FLT MANUAL AUTOTHRUST OP AND ACTUAL OP.
Narrative: AUTOTHRUST LIGHT WOULD NOT GO OUT AFTER ENG START. CALLED ZZZ MAINT AND WAS REFERRED TO ACFT FLT MANUAL PAGE WHICH HAS A NOTE THAT IF THIS OCCURS AFTER ENG START THAT IT IS OK AND WILL GO AWAY AFTER TKOF (OR WORDS TO THAT EFFECT -- I DO NOT HAVE MY MANUAL HERE). WE PROCEEDED ACCORDINGLY AND AFTER TKOF WARNING ECAM REMAINED, AUTOTHROTTLES WOULD NOT OPERATE. THE PROC IN THE MANUAL IS INCORRECT AND CAUSED ME TO DEPART WITH AN INOP SYS, WHICH REMAINED INOP THROUGHOUT THE REMAINDER OF THE FLT. THIS PROC NEEDS TO BE MODIFIED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE AUTOTHRUST WARNING LIGHT DID NOT GO OUT ON TKOF AND RESULTED IN NO AUTOTHRUST SYS OP. THE RPTR SAID ALL THRUST SETTINGS WERE REQUIRED TO BE MADE MANUALLY. THE RPTR SAID A REQUEST FOR MANUAL REVISION HAS BEEN SUBMITTED TO THE OPS DEPT.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.