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A319 captain reported experiencing an abnormal short-field takeoff and lacking runway to stop prior to V1 speed.
| Attributes | |
| ACN | 1691903 |
| Time | |
| Date | 201910 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument |
| Experience | Flight Crew Total 23000 |
| Events | |
| Anomaly | Deviation - Procedural FAR Deviation - Procedural Published Material / Policy |
Narrative:
Abnormal; short field departure from ZZZ. Tps (temporary protection system) called for a toga/APU off takeoff flaps 2 at 20c. Wind was calm and it was a 'reverse traffic flow' departure with only 18 minutes from push to takeoff. Because I knew we were at maximum performance I kept the APU on for takeoff. The degraded performance was only obvious due to our proximity to the alternating center line lighting prior to rotation. V1 was 138 [and] vr was 142. Takeoff proceeded without incident. We could not have stopped on the runway remaining from just prior to V1 speed.this event seems to have occurred due to a combination of factors. Abnormal runway use at ZZZ due to construction; insufficient tps review by load planning; and required trust of tps data by flight crews. Note: I specifically called dispatch prior to departure to make sure they knew abnormal operations were in effect; I should have called loads as well. This was a 'corner of performance envelope operation.' short field; maximum fuel; transcontinental flight. Abnormal flight operations should require a second look at performance to see if data is valid.
Original NASA ASRS Text
Title: A319 Captain reported experiencing an abnormal short-field takeoff and lacking runway to stop prior to V1 speed.
Narrative: Abnormal; short field departure from ZZZ. TPS (Temporary Protection System) called for a TOGA/APU Off takeoff Flaps 2 at 20c. Wind was calm and it was a 'reverse traffic flow' departure with only 18 minutes from push to takeoff. Because I knew we were at maximum performance I kept the APU on for takeoff. The degraded performance was only obvious due to our proximity to the alternating center line lighting prior to rotation. V1 was 138 [and] Vr was 142. Takeoff proceeded without incident. We could not have stopped on the runway remaining from just prior to V1 speed.This event seems to have occurred due to a combination of factors. Abnormal runway use at ZZZ due to construction; insufficient TPS review by Load Planning; and required trust of TPS data by flight crews. Note: I specifically called Dispatch prior to departure to make sure they knew abnormal operations were in effect; I should have called Loads as well. This was a 'corner of performance envelope operation.' Short field; maximum fuel; transcontinental flight. Abnormal flight operations should require a second look at performance to see if data is valid.
Data retrieved from NASA's ASRS site 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.