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A B767-300 captain selected derated climb 1 and the aircraft lost airspeed down to V2+10 at 1;000FT because the autopilot lowered the nose too slowly. The captain began flying the RNAV departure manually before selecting the other autopilot.
| Attributes | |
| ACN | 913869 |
| Time | |
| Date | 201010 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | LAX.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Route In Use | SID HOLTZ9 |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Autopilot |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Person 2 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Speed All Types Deviation - Track / Heading All Types |
Narrative:
Departed on the HOLTZ9 departure which requires the use of the autopilot. When the autopilot was selected; the aircraft began to lose airspeed. I warned the captain at approximately V2+10; and replied that he was monitoring it. The decreasing airspeed trend continued until the captain disconnected the autopilot and lowered the nose of the plane. He then continued to fly the departure by hand until we were cleared direct to a fix; at which he chose to re-engage a different autopilot and the flight continued without further incident.
Original NASA ASRS Text
Title: A B767-300 Captain selected derated Climb 1 and the aircraft lost airspeed down to V2+10 at 1;000FT because the autopilot lowered the nose too slowly. The Captain began flying the RNAV departure manually before selecting the other autopilot.
Narrative: Departed on the HOLTZ9 departure which requires the use of the autopilot. When the autopilot was selected; the aircraft began to lose airspeed. I warned the Captain at approximately V2+10; and replied that he was monitoring it. The decreasing airspeed trend continued until the Captain disconnected the autopilot and lowered the nose of the plane. He then continued to fly the departure by hand until we were cleared direct to a fix; at which he chose to re-engage a different autopilot and the flight continued without further incident.
Data retrieved from NASA's ASRS site as of April 2012 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.